Flytec 4030 User Manual

Flytec AG, Ebenaustrasse 8a, CH-6048 Horw

Electronic flight instruments made in Switzerland

Flytec 4030 GPS

Operating Instructions

Flytec

Operating Instructions FL YTEC 4030 1

Introduction 3

Instrument overview 4

Keyboard 5

Operating philosophy 5

Run mode (normal operating mode) 5
Setting mode (for adjustments) 5
Option mode 6

Commissioning 6
The altimeter 7

General remarks 7
How does an altimeter work? 7
Altimeter 1 (AL T1) 8

Setting mode 8
Option mode 9

Altimeter 2 (AL T 2) 9

Setting mode 10
Option mode 10

Vario and Polar 11
Vario sound levels 11
Analog vario bar display 11
Digital vario display (Integrator) 11

Setting mode 12
Option mode 12

Descent tone/Descent alarm and Polar 13

Setting mode 13
Option-Mode 13

Speedometer 14
General remarks 14
Display 14
Correction 14

Setting mode 14
Option mode 15

Time measurement and temperature display 16
Clock time (real-time clock), Stopwatch (CHRONO), Flying time 16
Temperature display 16

Setting mode 17
Option mode 17

GPS-supported functions 18

Introduction 18
Connection to a GPS navigation receiver 18

Flytec

Operating Instructions FL YTEC 4030 2

Normal flight according to McCready 19

Theory 19

Introduction 19
Abbreviations 19
The polar and its interpretation 19
Working out the polars 20
Polars for the best glide in still and agitated air 21
Optimum crusing speed 21

MacCready nominal flight display 22

Descent phase 22

MacCready nominal flight instrument setting 22

Weighting of the wind commponent compensation 23

Final approach 23

Theory 23

Introduction 23

Final approach computer display 23

Ascent phase 23
Descent phase 24

Final approach computer: instrument settings 25

With or without head wind component 25

Logbook 26

General remarks 26
Printout 26

Barograph 27

Recording 27
Time marker 27
Printout 27
T ransmission to a PC 28
Barograph setting mode 28

Barograph option mode 28

APPENDIX 29
Scope of supply 29
Procedure for Official FAI Observers 30
Water damage 30
ASCII table 31
PC and printer interface 31
Function overview 32

Flytec

Operating Instructions FL YTEC 4030 3

Introduction

Flytec’s 4030 is a completely new development. The new instrument is now more compact,
lighter and more economical thanks to the use of the very latest technology .

The 4030 is an instrument which you can adjust to suit your requirements. For this reason, all
important data can be altered quickly and easily. You’re flying in the United States? No pro­blem: Altimeter 1 displays the altitude in feet and Altimeter 2 displays the meters to which you
are accustomed! This is just one example of what the 4030 has to offer.

With this new instrument, we have remained loyal to Flytec’ s operating philosophy - and also
improved it with the new option mode. Flytec’s new 4030 is an instrument that will give you
immense enjoyment.

Your Flytec team

Flytec

Operating Instructions FL YTEC 4030 4

Instrument overview

1. On/Off switch

2. Analog vario bar display

3. Digital vario display, Glide ratio display

4. INDICAT OR display

5. TIME / SPEED / MEMO display

6. Altimeter & stopwatch display

7. Key

8. Speed sensor Socket

9. PC, printer and GPS interface

10. REC switch

3

6

5

4

1

8

7

9

10

2

Flytec

Operating Instructions FL YTEC 4030 5

Keyboard

Operating philosophy

The philosophy behind all Flytec instruments is to keep everything as simple as possible. This
is why each key has only one function, i.e. a function can be displayed and switched on or off
with each key. In order to alter a function, you press and hold down the relevant function key
for approximately 3 seconds. The setting to be changed will then flash and can be altered by
pressing and .

The instrument has three operating modes: normal operating mode, setting mode and confi­guration mode.

Run mode (normal operating mode)

The instrument is in run mode when used in normal operation. In run mode, the instrument will
display your altitude, ascent and the time continuously.

Setting mode (for adjustments)

In setting mode, the most important value can be changed for each display. For example, the
altitude can be set by using the setting mode for altimeter 1.

CLEAR ALT 2

TIME

SPEED

MEMO

PRINT

0-I-II

ALT 1
ALT 2

CHRONO

START - STOP

RESET

OPTION

1 3

4 5 6

2

1 START-STOP-RESET
2 VARIO
3 ALT1-ALT2-CHRONO
4 CLEAR AL T 2
5 SINK (PRINT)
6 TIME / SPEED / MEMO

START - STOP

RESET

CLEAR ALT 2

Flytec

Operating Instructions FL YTEC 4030 6

Enter setting mode for a particular display (e.g. for altimeter 1), by pressing the relevant func­tion key (e.g. ) and holding it down for about 4 seconds. As soon as you are in setting
mode, the SET indicator will appear in the INDICA TOR display. The value to be changed begins
to flash.

In order to return to run mode, press the relevant function key briefly (e.g. )
If no change is made in setting mode for 15 seconds, the instrument returns to run mode.

Option mode (configuration mode)

Option mode allows you to configure the instrument to your requirements and prefer ences. In
option mode, you can set the parameters for the relevant display or function at various levels.
For example, these can be units or special functions. A precise description of the various set­tings in option mode is given in the descriptions of the individual functions.

You can enter option mode (in the setting mode of a function) by simultaneously pressing the
two keys marked “Option” in yellow (Fig. 1). If the instrument is in option mode, this is confir­med by the OPTION indicator in the INDICA TOR display.

In OPTION mode you can change several parameters. By briefly pressing
the relevant function key (e.g. ) you skip from one level to the next. In
each level you can change one parameter of the relevant function. The level
number will appear each time in the digital vario display.

If no change is made for 15 seconds in option mode, the instrument returns
to run mode.

In order to return to run mode manually , pr ess the two option keys simulta­neously again (Fig. 1).

Using FlyChart 4.0 software on a PC, all settings in setting and option modes
as well as additional configurations can be conveniently set and transmitted
to the instrument via the PC interface.

Commissioning

Switch on the instrument with the On/Off switch. On being switched on, the instrument goes
through a self-test routine and then enters run mode.

ALT 1
ALT 2

CHRONO

CLEAR ALT 2

START - STOP

RESET

Figure 1

ALT 1
ALT 2

CHRONO

ALT 1
ALT 2

CHRONO

OPTION

Flytec

Operating Instructions FL YTEC 4030 7

When switched on, the instrument settings correspond to those valid when the instrument was
last switched off.

When first switched on, the instrument displays the approximate charging status of the batte­ries in the vario bar display. If the display shows approximately 50% of the maximum display
in the green sector, the batteries are still half full. If the display is in the red sector, the batte­ries must be changed. If the batteries are low on charge during a flight, PO will light up briefly
in the digital vario display and, at the same time, the charging status of the batteries is shown
in the bar display.

The battery life of the instrument using alkaline batteries is 160 hours. Rechargeable batteries
can also be used. However, operating time is substantially shorter with these (total operating
time is approximately 40 - 50 hours).

Alkaline batteries can also be recharged several times using the appropriate char ging unit (no
fast chargers!).

The altimeter

General remarks

How does an altimeter work?

An altimeter is really a barometer because it does not measure altitude directly but pressure.
The altitude is then calculated from the pressure. For the purpose of calculating absolute alti­tude (according to the international formula for altitude), the pressure at sea-level is assumed
as being zero-point pressure.

Why does pressure change with altitude? The air pressure at a point on Earth is pr oduced by
the weight of the atmospheric air above it. This is why air pressure decreases with altitude ­there is less air above your head! At 500 meters above sea-level, a pressure change of 1 mbar
corresponds to a difference in altitude of about 8 meters.

In practice, however, it is not quite that simple as other factors also have an influence on air
pressure. Pressure also depends on temperature and, of course, weather. On a stable day,
there can be air pressure fluctuations of 1 mbar caused by temperatures and this corr esponds
to a difference in altitude of ± 10 meters. Depending on the weather, air pressure at sea-level
(QNH) can be between 950 mbar and 1050 mbar . In order to eliminate this weather effect, an
altimeter needs continual recalibration. This means that the altimeter must be set at a known
altitude to display that same altitude.

Flytec

Operating Instructions FL YTEC 4030 8

When the weather changes fast (e.g. cold fronts), air pressure can change in the course of a
day by up to 5 mbar . This r epresents a change in altitude of 40 meters!

Another method of calibrating an altimeter is by entering the current QNH. What is the QNH?
In flying circles, a general zero point is needed to enable all aircraft at the same altitude to also
have the same altitude on their altimeters. This joint basis is called the QNH. The QNH is the
current air pressure in hPa (1 hPa = 1 mbar) calculated at sea-level. It is redetermined several
times daily and can be obtained in the flying weather report or from airfields by radio.

Altimeter 1 (ALT 1)

Altimeter 1 displays absolute altitude, i.e. the altitude above sea-level.
Function key is used to change from the displays for altimeter 1, altimeter 2 and the stop-

watch. Pressing and holding down this key will make the instrument go into setting mode.
Attention: While a flight is being r ecorded (REC

activated) the setting mode is blocked for Alti­tude 1. This altitude can only be readjusted after
the REC has been switched off. This is an FAI
requirement.

Altimeter 1 setting mode

As mentioned above, the absolute altitude
can be setin setting mode. The altitude and the

QNH flash on 2 lines. Using the setting keys
and , you can set the altitude and the QNH
simultaneously. If you do not know what alti­tude you are currently at, you can set the alti­tude using the QNH but this method is not as
precise as direct altitude setting. The QNH has
a resolution of 1 mbar which corresponds to
an altitude resolution of approximately 8
meters. The altitude, however, can be set
directly to an accuracy of 1 meter.

Pressing the setting keys and simulta­neously will take you from setting mode to opti­on mode.

ALT 1
ALT 2

CHRONO

SET-MODE

ALT 1/QNH

OPTION-MODE

ALT1 Unit

m - ft

QNH Unit

hPa - inHg

Sensor

Correction

ALT 1

ALT1

ALT1 4Sec.

OPTION

OPTION

➀

➁

➂

CLEAR ALT 2

START - STOP

RESET

CLEAR ALT 2

CLEAR ALT 2

Flytec

Operating Instructions FL YTEC 4030 9

Altimeter 1 option mode

In option mode, you can set the unit for ALT 1 (meters or feet) at the first level and, at the
second level, you can set the unit for the QNH (hPa or inHg). The indicator for the relevant unit
set flashes in the display.
The pressure sensor can be corrected at the third level (±50 hPa).
If you find that the QNH value displayed at a known altitude deviates seriously from the QNH
value of a weather station in your area, you can correct this deviation by entering the deviati­on (with a different prefix). I.e. if the QNH displayed by your instrument is 20 hPa too high, enter

-20 to correct this deviation.
This deviation is caused by the aging of the pressure sensor and stabilizes after 2 - 3 years.
N. B.: Incorrect manipulation of the correction value of the pressure sensor will result in false

altitude readings! Never alter the basic settings of the altimeter unless you have good reason
to do so (in your own interest)!

In option mode, the indicators OPTION and
ALT 1 appear and the relevant number of the
module is shown at the top of the display. The
unit to be adjusted will flash.

Altimeter 2 and target altitude (ALT 2)

Altimeter 2 can either be used as an absolute
altimeter or as a relative altimeter.

When used as an absolute altimeter , it functions
in precisely the same way as altimeter 1. Alti­meter 2 can now, for example, display the alti­tude in feet and altimeter 1 the altitude in
meters.

The relative altimeter displays the current alti­tude with reference to a point. This reference
point can be set at zero in run mode at any time
by using the key or set at any altitude in
setting mode. The relative altimeter can thus be
used to measure the higher altitude of the take­off area. Pressing the key at the take-off
area will zero ALT 2 for this purpose.

ALT 1
ALT 2

CHRONO

ALT 1
ALT 2

CHRONO

SET-MODE

ALT 2/QNH

OPTION-MODE

Target altitude

Mode

• relative altitude

• absolute altitude

ALT 2

ALT2

ALT 2 4Sec.

OPTION

OPTION

➀

GPS

on / off

②

ALT2 Unit

m - ft

➂

➃

Flytec

Operating Instructions FL YTEC 4030 10

Altimeter 2 setting mode

The altitude can be set in setting mode in precisely the same way as with altimeter 1.
If altimeter 2 is selected as the absolute altimeter, it is coupled to altimeter 1. Any change in

the display for altimeter 1 is reflected by a corresponding change in the display for altimeter 2
and vice-versa.

Altimeter 2 option mode

In OPTION mode, you can enter the target altitude at the first level using the key and
the key.
Use the key to enter the second level of OPTION mode. There, the GPS-supported func­tions of the instrument can be switched on or off.
The unit of the AL T 2 display (meters or feet) is determined at the thir d level. The currently
selected unit flashes in the display. Use the or the key to toggle between the units.

Press key to enter the fourth level of option mode. At this level, you select the operating
mode of altimeter 2. If this is set at absolute altimete, the two indicators ALT 1 and ALT 2 will
flash in the display. If set at r elative altimeter, only the indicator ALT 2 will flash.

You return from option mode to run mode by waiting 15 seconds or again pressing the two
keys marked “OPTION” simultaneously.

TIME

SPEED

MEMO

TIME

SPEED

MEMO

CLEAR ALT 2

CLEAR ALT 2

START - STOP

RESET

START - STOP

RESET

Vario and Polar

Vario sound levels

Two sound levels can be set or the sound system switched off completely by repeatedly
pressing the key . While the key is pr essed, a tone will sound at the desired level.

Analog vario bar display

The vario bar display has a range of ± 8 m/s in two scale passes. The scale unit always cor­responds to 0.2 m/s. Up to 4 m/s , the bar display fills. If it displays more than 4 m/s (ascent),
the ascent is displayed inverted, i.e. the display is full at 4 m/s and empties from below when
ascent increases.

E.g.:

The sensitivity of the bar display corresponds to the basic attenuation of the vario (‡ setting
mode of the vario). It therefore always displays current ascent.

Digital vario display (Integrator)

The digital vario displays the attenuated climb rate for the last X seconds in second rate. The
time X, via which ascent is attenuated (integration time), can be changed at the first level of
option mode. These values appear flashing in the digital vario display.

Flytec

Operating Instructions FL YTEC 4030 11

0-I-II

0-I-II

➞

➞

1.6 m/s 4 m/s 5 m/s

Vario setting mode

Y ou can enter the vario’ s setting mode by pr es­sing the key for a long time (approxima­tely 3 seconds). This automatically activates the

final approach computer (on) or, if pressed
again, deactivates it (off). The preset wind com­ponent is shown in the SPEED display for the
purpose of information.

You can enter option mode by simultaneously
pressing the two option keys.

Vario option mode

The basic attenuation of the vario can be alte­red at the first level of option mode. The basic
attenuation of the vario is effective on all vario
functions; it can be set to 0.5 sec, 1 sec or

1.5 sec.
N.B.: The fastest vario is not always the best

vario. In very rough and severe conditions, it is
advisable to attenuate the vario more. Turbu­lences are then filtered out by the attenuation
and not displayed.

The integration time of the digital vario can be
altered at the second level of option mode. The
values are in 5-second steps between 5 and 35
seconds and appear flashing in the digital vario
display. At setting 1, the digital vario is display­ed without averaging and then runs parallel to
the bar display. The values can be altered with
the and the keys.

The audio response point can be adjusted at the third level. The audio response point can be
adjusted from +2 cm/s to +40 cm/s. The current response point appears in the bar display and
represents one tenth of the value displayed. E.g.: a display of 2 m/s corresponds to an audio
response point of 20 cm/s.

The digital vario unit can be selected at the fourth level: m/s or feet/min x 100. The current set­ting flashes in the digital vario display. You can switch between the two units with the key.

Operating Instructions FL YTEC 4030 12

0-I-II

START - STOP

RESET

CLEAR ALT 2

START - STOP

RESET

SET-MODE

Final approach

computer (on/off)

OPTION-MODE

Basic attennuation

Unit

m/s ft/ min

VARIO

VARIO

VARIO 2 4 Sec.

OPTION

OPTION

➀

Integration time

1...35

②

Audio response

level

➂

➃

Flytec

Flytec

Operating Instructions FL YTEC 4030 13

Descent tone/Descent alarm and Polar

The descent tone is a continuous tone dependent on descent which sounds as soon as des­cent is greater than the response point. The descent tone can be set or switched off with the

key. When the descent tone is active, the SINK indicator is displayed. When the descent

tone is first switched on, a mark appears in the bar display indicating the response point set.

Descent alarm and polar input setting mode

The response point of the descent alarm is set in
the bar display using the keys. The response point
can be set over the entire range of the display and
also remains stored in memory after the instrument
has been switched off.

Press the two OPTION keys simultaneously to
enter OPTION mode.

Descent alarm and polar input option mode

Four polars can be defined and saved in OPTION
mode of the sink alarm. For the polars, the descent
values at the relevant horizontal speed (20 kmh to
120 kmh) must be set at intervals of 2 kmh. No
supporting value can be omitted within the polars!
The ends of the polars (too low and too high hori­zontal speeds) are marked by only descent values
following with the magnitude of zero.

Activating the polars

Press the key to activate one of the four
polars. The polar number is displayed in the
upper digital vario window. The polar selected
remains activated after exiting OPTION mode.

Polar input
After selecting the polar, the relevant supporting
values can be entered manually. Pressing the
key starts polar input at 20 km/h. The current
horizontal speed is shown in the SPEED display.
The flashing display shows the corresponding
descent value. The value can be entered in steps of 0.1 m/s with the and keys. Pres­sing the key again increases the speed each time by 2 km/h up to 120 km/h.

SET-MODE

Set Descent alarm

OPTION-MODE

Pol 1

Descent value

Pol 4

Descent value

SINK

SINK

SINK 4Sec.

OPTION

OPTION

➀

Pol 2

Descent value

②

Pol 3

Descent value

➂

➃

CLEAR ALT 2

START - STOP

RESET

PRINT

PRINT

ALT 1
ALT 2

CHRONO

ALT 1
ALT 2

CHRONO

Flytec

Operating Instructions FL YTEC 4030 14

Saving the polars

The polar data is saved when you exit OPTION mode by pressing the two OPTION keys. NB:
If no entry is made for 10 seconds, the unit automatically switches back into RUN mode with­out saving the amended polar!

Polar input via PC software

Polars can be entered more simply and more precisely with a PC and FLYCHAR T4.XX Pro­fessional software.

Speedometer

General remarks

A speed sensor (speedometer) can be purchased as an accessory. The speed sensors in the
3000 series can also be used with instruments in the 4000 series.

The accuracy of a vane wheel sensor is highly dependent on its point of attachment.
Additionally, the individual pr obes have an accuracy of approximately + 2.5% (industrial stan-

dard) resulting from manufacturing operations and it is possible for two probes not to display
exactly the same speed. These deviations can be largely corrected by the instrument.
(± option mode of the speedometer).

Display

If a vane wheel sensor is connected to your instrument, speed (in kph, mph or knots) relative
to the air can be shown in the lower display by pressing the key .

When a stall alarm is switched on, a warning tone sounds when speed falls below a certain
absolute speed. No stall alarm will sound at speeds that are below 10 kph. If the threshold is
set at 10 km/h (or 5 mph), the stall alarm is switched off.

The current time can be shown every 30 sec in the SPEED display ( option mode of the spee­dometer).

If a probe always displays too much or too little, this deviation can be corrected at the fourth
level of option mode.

Speedometer setting mode

In the speed indicator’s SET mode, the horizontal wind component anticipated during final
approach can be entered using the key and the key. It is required in order to calcu­late the optimum final approach moment. Positive values are interpreted as tail wind and nega­tive values as head wind.
Press the two OPTION keys simultaneously to enter the OPTION mode

TIME
SPEED

MEMO

CLEAR ALT 2

START - STOP

RESET

Option mode of the speedometer

The response threshold of the stall alarm can be
altered at the first level. If the threshold is set at
10 kph (or 5 mph), the stall alarm is switched off.

At the second level, you have a choice of whether
the time should be displayed automatically every
30 seconds when the speed display is switched
on.

At the third level, the desired unit of the speed dis­play is set. You can choose between kilometers
per hour (km/h), miles per hour (mph) and knots
(kts) by using the key and the key.

At the fourth level, you can also make adjustments
to the correction of the speedometer. The correc­tion value is given in percent using the key and
the key. If the speed display is uncorrected,
the display will show 100 (%). If the display still
shows a 4% excessively high value (e.g. 50 km/h
instead of 48 km/h), the display is corrected by set­ting 96 (%). This means that the display will now
always show 96% of the original speed.

Operating Instructions FL YTEC 4030 15

SPEED correction

50..100..150

OPTION

SET-MODE

± Wind component

horizontal

OPTION-MODE

Stallalarm

SPEED

SPEED

SPEED 2 4

OPTION

➀

Display

● SPEED & TIME

● SPEED

②

Units

km/h-mph-kts

➂

➃

START - STOP

RESET

START - STOP

RESET

CLEAR ALT 2

CLEAR ALT 2

Flytec

Flytec

Operating Instructions FL YTEC 4030 16

Time measurement and temperature display

Clock time (real-time clock)

In the lower display, the key is used to toggle between speed, time and MEMO display.
The time, the date and the year can be set in setting mode.

Stopwatch (CHRONO)

The stopwatch is displayed in the upper display. It can be started and stopped with the key .
If the stopwatch has been started, the indicator CHRONO will flash. Press key to toggle
between ALT 1, ALT 2 and CHRONO in the upper display. Press key again to stop and
start the stopwatch again. In order to reset a halted stopwatch, press the key for 4
seconds. If the stopwatch has been halted, the CHRONO indicator remains displayed until the
stopwatch has been reset.

Flying time

The flying time clock is automatically started after the instrument has been switched on and
runs in the background independently of the stopwatch. The flying time is saved when the
instrument is switched off. The flying time saved in memory is kept in the flight log. During flight,
the flying time can be invoked in the MEMO display ( Logbook).

Temperature display

The temperature display is an additional function of the time display. The temperature dis­play can be switched on or off. If the temperature display is switched on, the temperature is
briefly shown every 30 seconds in the time display (the time interval can be set using the PC
setup). The temperature display is switched on or off in option mode.

Please note: The temperature display reacts to changes in temperature with a slight delay
as the temperature sensor is inside the instrument.

START - STOP

RESET

TIME

SPEED

MEMO

START - STOP

RESET

START - STOP

RESET

ALT 1
ALT 2

CHRONO

Flytec

Operating Instructions FL YTEC 4030 17

Time measurement and temperature display setting mode

The key and the key are used in setting
mode to set the time. The hours and minutes are
set first and confirmed with the key. The date
can now be entered in precisely the same way.
This input is again confirmed with the key. The
year is also entered and confirmed in the same
way.

Attention: As soon as the barograph display is
activated with the REC switch and a flight has
already been saved, the real time clock and the
date can no longer be changed. They can only be
manipulated again once the memory has been
cleared (  Barograph setting mode).

Time measurement and temperature dis­play option mode

The temperature display can be switched on or off
at the first level of option mode. If it is switched on,
the TEMP indicator will flash as well as a TIME indi­cator. When the temperature display is switched
off, only the TIME indicator is on.

The unit of the temperature display (° Celsius or
° Fahrenheit) can be selected at the second level
using the key and the key.

START - STOP

RESET

CLEAR ALT 2

START - STOP

RESET

CLEAR ALT 2

SET-MODE

set time

OPTION-MODE

Display

• Time & Temp

• Time

Temp Unit

°C - °F

TIME/TEMP

TIME

TIME 4 Sec.

OPTION

TIME

OPTION

➀

➁

TIME

SPEED

MEMO

TIME

SPEED

MEMO

Flytec

GPS-supported functions

Introduction

The following GPS-supported functions are integrated in the instrument:

- Desired flight according to MacCready

- Final approach calculator

- Glide ratio calculator
Naturally, the GPS functions can only be used if a GPS device is attached to the instrument

and the GPS function in the instrument is activated (set to on)!
If speed or GPS data is incorrectly received, horizontal lines will appear in the display instead

of this data. If the desired glide ratio is less than 1, the instrument will show “EE” instead of
the desired glide ratio and ”EEEE” instead of the target plus or minus flying altitude.

Basically, a flight consists of two phases. During the first phase, the flight is flown according
to MacCready for an optimized desired flight and, during the second phase, the final approach
is prepared and executed. To prevent the pilot being presented with a flood of information that
is of absolutely no interest in the current phase, the 4030 only displays the interesting data of
this phase to him. The user can activate and deactivate the final approach computer during
the flight by pressing a key .

Connection to a GPS navigation receiver

Using a connecting cable (special accessory), a 4030 GPS can be connected to a standard
GPS unit and will use the data supplied by the latter. In principle, all GPS receivers with stan­dardized NMEA183 interfaces are suitable although deviations to this between manufactu­rers are known.

Operating Instructions FL YTEC 4030 18

Target

Final approach (MacCready thermal)

Final approach (MacCready zero)

Start

*

- MacCready

- Actual glide ratio

- Target minus /
plus altitude

Picture 4

*

- MacCready

- Actual glide

Picture 1

ratio

*

- Nominal glide

Picture 3

ratio

*

- Nominal glide
ratio

- Last thermal

Picture 3

integrator
MacCready

zero and t hrmal

- Final approach

Nominal flight accordingto MacCready

Finalapproach

(Final approach computer: off) (Final approach computer: on)

Target plus
altitude

Setting a GPS NMEA 183 interface

Baud rate: 4,800 baud
Interface: Input no, output yes

- Garmin: NEMA 183 version 1.5

- Magellan: NMEA 183b

For the final approach computer, a destination co-ordinate must be entered and activated
with the GOTO or ROUTE function.

Normal flight according to MacCready

Theory:
Introduction

In order to reach the highest possible cruising speed, the pilot must fly according to MacCrea­dy for cruise-optimized desired flight. Assuming that the pilot crosses a valley and expects a
thermal with a climb rate of 2 m/s on the other side, he must select his cruising speed so that
the bar of the MacCready display appears at 2 m/s during the glide phase.
If the bar only displays 1 m/s, he is flying too slowly and wasting precious time. If the pilot now
notices that - at the speed selected - he is coming too close to the ground, he must fly more
slowly. In an extr eme case, at the speed for the best glide (that is to say with a MacCready dis­play of 0 m/s), but never more slowly , as otherwise pr ecious altitude is wasted!

Abbreviations

E: Glide ratio
E

max:

Maximum glide ratio attainable
VH: Horizontal speed (relative to the air: true airspeed)
VVE: Own descent
VVL: Vertical velocity of the air
VFM: Speed displayed by the airspeed indicator
VW: Wind speed
VSi: Total descent (VVE + VVL)
VSt: Effective rate of ascent in the thermal
VR: Cruising speed

The polar and its interpretation

In still air , the polar states the vertical speed of descent V

VE

belonging to the specific horizon­tal speed VHof a craft. VVEis a negative value as it represents a downward movement. In the
illustration: polar with and without a head wind (Polar with head wind: shaded co-ordinate

system) shows an example of a polar.

Flytec

Operating Instructions FL YTEC 4030 19

Flytec

The relevant descent value can be read from the polars for any flying speed (horizontal speed)
and the relevant glide ratio can be calculated. E = - VH/ VVE.

A straight line from the point of origin at any point on the polar represents (optically distorted
by the choice of scale) the angle of inclination of the flight path at the particular speed.

From this, it can be deduced that the originating straight line which just touches the polar (tan­gent) has the flattest level of inclination and thus results in the best glide ratio. In the example:
VH= 35 km/h = 9.72 m/s and VVE= -1.1 m/s. (The craft flies furthest at the flying speed with

the best glide ratio.)

The polar shown in the example is only valid if the air is completely still. The changes for air
agitated horizontally and vertically will be discussed later .

The lowest descent speed can be determined with a horizontal tangent to the polar. In the
example: V

H

= 30 km/h = 8.33 m/s and VVE= -0.97 m/s.

Working out the polars

Since manufacturers’ figures are generally over-optimistic, it is recommended that you work
out the polars yourself. The polars are flown with the same equipment and the same instru­ments which will be used in subsequent flights. Instrument measurement errors can be neu­tralized in this way as they will also be present during normal flying later on. The polar worked
out is thus a relative polar which is only correct for the instruments used and their displays, the
absolute values of which may, however, be faulty . In or der to achieve the same conditions, the
airspeed indicator in particular should always be mounted in the same manner. The airspeed

indicator should be calibrated as accurately as possible (e.g. with the help of the GPS receiver)
to ensure that the flight instrument data is as precise as possible. Cf. OPTION mode of the air­speed indicator: SPEED correction.

For the purpose of information, it should be mentioned at this point that the speed V

FM

indi-

cated by the airspeed indicator does not represent the horizontal speed VH but is composed
of VHand VE.

Operating Instructions FL YTEC 4030 20

-8.33 m/s

E = = 8.59

-0.97 m /s



VVEV

GM

V

H

V

H

=

V

GM

2

- V

VE

2

-9.72 m/s

E

MAX

= = 8.84

-1.10 m /s

Flytec

Polars for the best glide in still and agitated air

With a 20 km/h head wind, the polars are displa­ced by 20 km/h to the left. In order not to have to
displace the polars, the origin of the co-ordinates
in respect of the polars can also be displaced by
20 km/h to the right (blue co-ordinate system).
The tangent from the new origin to the polar now
touches it at the point at which V

H

= 40 km/h and

V

VE

= -1.21 m/s. In other words for optimum glide,

flight speed must be higher with a head wind than
without a head wind.
If there was a following wind of 20 km/h, the ori­gin of the co-ordinate system in respect of the
polars would be displaced by 20 km/h to the left.
If you also find yourself in a descending mass of
air , the descent of the air must be included in the
resultant overall descent and the polars should be
displaced downwards by the relevant amount.
Once again, the origin of the co-ordinates is dis­placed upwards and the tangent for the best glide
is laid from there to the polar.
If, in our example, the 20 km/h head wind is accompanied by a descending mass of air of -1
m/s, the best glide is V

H

= 46.2 km/h and VVE= -1.75 m/s. The instrument would display an

overall descent of V

Si

= VVE+ VVL= -2.75 m/s.

Optimum cruising speed

Cruising speed in a mass of air that is not horizontally
agitated can be calculated as follows:

V

R = VH .

VSt: Speed of ascent while circling in a thermal
VSi: Overall descent in straight-line flight

The formula for the cruising speed can be graphically
integrated into the depiction of the polars as shown in
the illustration “Optimized desired flight”.

Thus for our sample polar in descending air
(-1 m/s), with ascending thermals of 1 m/s, the fastest
flying speed would be V

R

= 25.3 km/h at VH = 43 km/h

and an own descent VVE= - 1.4 m/s.

Operating Instructions FL YTEC 4030 21

Si

V

=-2.4m/s

1

-1

-2

-3

-4

-5

-6

-7

10 20 30 40 50

VSi(m/s)

(km/h)

H

V

-1.97

-2.4

optimum

H

V=43km/h

43

VE

V=

-1.4m/s

St

V=

1m/s

V

Rmax

V

R

13 km/h

10.5 km/h

VL

V=

-1m/s

Illustration: Optimized desired flight

VSt

VSt - V

Si

4

3

2

1

-1.05

-0.97

-1.1

-1.21

-2.17

-3.75

-4.85

-1

-2

-3

-4

-5

-6

-7

10 20 30 40 50 60 70

VVE(m/s)

(km/h)HV

4

3

21

V

VE

(m/s)

VW=-20km/h

Illustration: polar with and without a head wind

Flytec

MacCready nominal flight display

The single bar in the upper part of the analog display represents the anticipated ascent in the
next thermal. If a greater ascent is anticipated, you must fly faster; if a lower ascent is antici­pated, you must fly slower .
The benefit of this type of display when compared with MacCready rings is that you do not
have to touch the instrument during flight - changing your flight speed is sufficient.
Two arrows appear when the current actual glide ratio is displayed.

MacCready:

Anticipated ascent in the next thermal.

Vario and Vario integrator:

Is displayed in accordance with the VARIO OPTION mode.

Actual glide ratio:

Current glide ratio of the craft (computed with ground speed).

MacCready nominal flight instrument setting

GPS function on/off:

If the GPS function is set at off, all the instrument’ s GPS functions ar e switched off
(q.v. ALT 2 OPTION MODE).

Polars: 4 polars can be saved in the instrument. The active polar is always the one that

was displayed on the flight instrument before leaving SINK OPTION mode and not
the one that was last loaded from the PC into the flight instrument. It is better to

enter the polar data with a PC as the supporting values of the polars can be
determined from saved calibration flights. The polar data can also be edited in the
flight instrument. (q.v. SINK OPTION MODE).

Operating Instructions FL YTEC 4030 22

Picture 1

Descent phase

MacCready

Vario

16 seconds 4 seconds

4

3

2

1

0

-1

-2

-3

-4

Actual gl i de ratioVario Integrator

m/s

MacCready> 4 m/s

4

3

2

1

0

-1

-2

-3

-4

1

0

-1

-2

MacCready< 0 m/s

4

3

2

-3

-4

Flytec

Weighting of the wind component compensation:(0%, 25%, 50% and 100%). The tail wind
or head wind component during the MacCready nominal flight is only taken into account at the
percentage given here. For example: if the tail wind component is 30 km/h and if the weighting

is set at 50%, the instrument calculates with an tail wind component of 15 km/h in the final
approach. This value cannot be set in the instrument but only via a PC. Factory setting: 50%.

Final approach

Theory
Introduction

When the pilot is approaching his destination, it is important to find out when to start his final
approach. He must begin it in quiet air as soon as the desired glide ratio harmonizes with the
best glide of his craft (final approach according to MacCready zero). However, if he is already
in a thermal, he can reach his destination more quickly if he climbs higher and the desired glide
ratio is less than his best glide before he begins his final approach. He can then approach his
destination at a higher speed (final approach according to MacCready thermal).

The distance used by the final approach computer always refers to the next waypoint that is
being approached and the destination altitude set in the flight instrument is always used as
the altitude. The final approach data is thus only meaningful if the next waypoint being
approached is the destination.
If the pilot activates the final approach computer and approaches the destination at almost
constant altitude, the flight instrument will signalize the moment for the final approach at
MacCready zero (best possible glide). If the pilot enters a thermal shortly after, he should defi­nitely exploit it as the flight instrument will calculate and signalize the new (better) moment for
the final approach.

Final approach computer display

A) Optimum glide ratio < nominal glide ratio
B) Optimum glide ratio > nominal glide ratio (calculation of the optimum point in time

for your final approach)

If the desired glide ratio corresponds to the craft’s best glide ratio, taking into consideration

Operating Instructions FL YTEC 4030 23

Picture 3

Ascent phase:

A) B)

Vario

8 seconds 4 seconds

Vario integrator Nominal gli de ratio

4

3

2

1

0

-1

-2

-3

-4

m/s

Last
thermal
integrator

Final approach
MacCready
zero

8 Sekunden 4 Sekunden

Vario integrator

4

3

2

1

0

-1

-2

-3

-4

Nominal gli de ratio

m/s

Blink:
Final approach

MacCready

thermal

Flytec

the following- and head-wind components, the flight instrument will then switch over from A)
to B) and the lower part of the analog bar display will appear black (final approach possible).
The last thermal integrator (the average ascent of the thermal) is shown in the upper part of
the analog display and is slowly deleted from the bottom to the top until the right flight moment
is reached. The entire lower part of the analog display then begins to flash. This is the moment
of transition to the final approach.

During the final approach, you must fly in such a way that the MacCready display in the ana­log display matches the last thermal integrator in the last thermal.
In addition, the plus / minus target altitude is displayed in ALT 2 as a check. If the pilot flies
faster, it is reduced. The “A” that is displayed stands for “Approach”. If he flies more slowly, it
increases. If it becomes negative, the destination can no longer be reached at the current actual
glide ratio.

Nominal glide ratio:
The glide ratio which must be attained to fly directly to your destination from your current
position.

Target minus / plus altitude:

The altitude at which you will fly below or above your destination if you maintain your current
glide ratio.

Last thermal integrator:

Ascent calculated over a longer period for the precise determination of the optimum point in
time for your final approach.

MacCready:

Anticipated ascent in the next thermal.

Operating Instructions FL YTEC 4030 24

Picture 4

Descent phase:

MacCready

Vario

8 seconds

Vario integrator

4

3

2

1

0

-1

-2

-3

-4

ALT 2

m/s

m

actualglide ratio

larger

nom inalglide

0

-1

1

-2

3

2

-3

4

-4

4 seconds

actualglide ratio

ALT 2

Target minus /
Plus alzitude

m

Flytec

Vario and Vario integrator:

Is displayed in accordance with the VARIO OPTION mode.

Actual glide ratio:

Current glide ratio of the craft (computed with ground speed).

Final approach computer: instrument settings

GPS function on/off: Set the GPS function to on (q.v. ALT 2 OPTION MODE).
Polars: Activate craft-specific polar (q.v. SINK OPTION MODE).
Target altitude: Target altitude input for final approach calculation (q.v. ALT 2 SET MODE).
Final approach computer on/off: Activates or deactivates the final approach computer

(q.v. Vario Set mode).

Wind component: Corresponds to the wind component that the pilot expects in his final

approach and is for the precise calculation of the time for the final approach.
During phase 1, the wind component is calculated from the flight instrument and
GPS data (q.v. SPEED SET MODE).

Operating Instructions FL YTEC 4030 25

Flytec

Operating Instructions FL YTEC 4030 26

Logbook

General remarks

The maximum values of the current flight and those of the previous 19 flights are saved in
memory and can be invoked in the MEMO display and printed out on a printer . Y ou can access
the MEMO display by repeatedly pressing the key until the MEMO indicator appears.

The maximum values saved are:

• Maximum absolute altitude AL T 1

• Maximum relative altitude AL T 2

• Maximum ascent and descent VARIO bar display

• Flying time CHRONO

• Date Lower display

The key and the key are used to go through the flights saved until the flight required
is displayed. Flight 0 is the current flight, the peak values of which are continuously updated.

Flight 19 is the least recent flight and is deleted whenever a new flight is saved to memory .
The maximum values of a flight are saved to memory automatically when the instrument is swit-

ched off. (Condition: the instrument has been switched on for at least 3 minutes and a diffe­rence in altitude of at least 50 metres has been attained.)

Printout

The logbook can be printed out straight from the instrument via a printer cable onto a printer.
Either a serial or a parallel cable must be used dependent on the printer. The printout is star­ted by pressing and holding down the key in the MEMO display , make sure that the MEMO
shows flight 0.

PRINT

START - STOP

RESET

CLEAR ALT 2

TIME

SPEED

MEMO

Sample printout:

Barograph

Recording

Recording is done with the REC switched on. The saving rate is adjustable (1, 5 or 15 sec), as
well as the magnitudes to be saved. (Cf. OPTION mode MEMO). The accuracy of the 4 magni-

tudes is: altitude = 1m, SPEED = 1 km/h, VARIO = 0.1 m/s, TEMP= 1°C. With altitude recording
at 15-second saving rate, the maximum saving time is > 50 hours. (Larger memory available on
request).Switching off the REC switch stops the barograph recording pr ocess and saves the flight

in memory. If the REC switch is not switched of f, the current r ecording is saved when the instru­ment is switched off.

IMPORTANT: If the REC switch is not activated, there will be no barograph recording; conse­quently, only the flying time and the peak values will be saved when the instrument is switched
off.

Time marker

While a flight is being recorded you can set time markers in the barogram durging the flight. For
example, the turning-point can be recorded in the barogram. These markers are plotted in the
printout and displayed in the FlyChart software. While a flight is being recorded you can set time
markers by pressing the key (the indicator must be on ALT1 or CHRONO) until a number
appears briefly in the upper display. This is the number of the markers that have been set.

Printout

The barogram can be printed out directly on any EPSON-, IBM- or HP-compatible printer. (For
printer selection, please refer to OPTION mode MEMO). Either a parallel (Centronics) or a seri­al (RS232) cable (special accessory) is required according to the type of printer used.
Switch the instrument to MEMO mode with the key. Select the flight you require from the log­book list by pressing the key and the key. NB: you can only print out flights which have an
ALTmark in the barogram column. No V ARIO, SPEED or TEMP recordings are printed out in a
direct printout. Start a printout by holding down the key in the MEMO mode display (REC
switch must be switched off). The altitude scale is automatically adjusted (2,400, 4,800 or
9,600m) in the printout.

Flytec

Operating Instructions FL YTEC 4030 27

DATE TIME ALTI1 ALTI2 VARIOMETER REC Barogram Sample

Nr.dd.mm.yy hh:mm MAX MAX MAX MIN TIME TIME

1. 03.01.95 11:23 2032 204 1.2 -14.6 00:33 ALT TEMP 15

2. 05.01.95 13:45 1892 349 2.5 -12.3 01:26 ALT SPEED 15

3. 12.02.95 12:03 1580 89 0.8 -9.8 00:23 NO -

4. 03.01.95 11:23 2032 204 1.2 -2.0 01:09 ALT 15
Nr.dd.mm.yy hh:mm [m] [m] [m/s] [m/s] hh:mm [sec]

ALT 1
ALT 2

CHRONO

TIME

SPEED

MEMO

START - STOP

RESET

CLEAR ALT 2

PRINT

Transmission to a PC

The flights recorded can be transmitted to a PC. You will require a PC with Windows 3.X or
Windows® 95, a PC cable and Flytec’s softwar e.

Transmission is started from the PC Software FlyChart. It is required that the instrument is in
the run mode on the MEMO display (fligth 0). The entire flight memory is then transmitted to
the PC where the flights can be saved and printed out. The PC software can be used to print

out a colour graphic of the barogram VARIO, SPEED and TEMPdata.

Barograph setting mode

In setting mode, all flights in the logbook can be
deleted and the recording interval of the barograph
can be set.
In setting mode, the recording interval saved is dis­played first. Using the key or the key, chan­ge in the MEMO display between the recording
intervals 1, 5, 15 sec and CI. Briefly press MEMO
to save the interval displayed and thus leave set­ting mode.

If Cl appears in the MEMO display, all the flights
can be deleted by pressing the key for 4
seconds. As soon as the memory has been dele-
ted, all the segments of the display will flash brief-
ly and the instrument starts up again.

Barograph option mode

The magnitudes which the barograph is to record
are set at the first level of option mode.

Use the key or the key to toggle between
the different possibilities. The magnitudes to be
recorded flash in the display:

• ALT 1 and SPEED Altitude and speed

• m/s ft/min x 100 and SPEED Ascent and speed

• ALT 1 and TEMP Altitude and temperature

• ALT 1 Altitude only

The printer emulation must be given at the
second level of the OPTION mode:

EP  Epson FX-80
Ibm  IBM Proprinter
HP  HP Deskjet

Operating Instructions FL YTEC 4030 28

SET-MODE

• Intervalle des enreg.

1, 5, 15 sec.

• Clear Barographe

(AL T 4 sec.)

OPTION-MODE

Recording

• ALT1 & SPEED

• Vario & SPEED

• ALT1 & TEMP

• only ALT1

Printer emulation

Epson - IBM - HP

Printout width

Norm - Cond

Name

21 Characters

MEMO

MEMO

MEMO 4 Sec.

OPTION

MEMO

MEMO

MEMO

OPTION

➀

➁

➂

➃

START - STOP

RESET

CLEAR ALT 2

ALT 1
ALT 2

CHRONO

START - STOP

RESET

CLEAR ALT 2

Flytec

Flytec

Operating Instructions FL YTEC 4030 29

These two emulations are offered by the majority of standard dot impact printers.
The width of the printout (either condensed mode or normal mode) can be selected at the third

level:

--I I--  condensed mode (double width)

-I I-  normal mode
At the fourth level, you can enter your name; the name entered appears on the logbook printout.

The individual letters of the name must be entered individually as ASCII code ( ASCII table in
the appendix). The letter displayed is confirmed with the key and the next displayed. The
name may be 21 characters long. The number of the character appears in the digital vario dis­play and the ASCII code for the character is shown in the MEMO display. Pr ess the

key to enter the next character . Press the key to r eturn to the third level of option mode.

Press both option keys to return to run mode.

APPENDIX

Scope of supply

The following items are included:

• FLYTEC 4030 instrument

• Leg clip

• Protective sleeve

• Manual

• PC software and PC cable
The following are available as accessories:

• Various attachment fixtures

• Various speed sensors

• Printer cable (serial or parallel)

TIME

SPEED

MEMO

ALT 1
ALT 2

CHRONO

ALT 1
ALT 2

CHRONO

Flytec

Operating Instructions FL YTEC 4030 30

Procedure for Official FAI Observers

1. The observer must familiarize himself with the instrument for a period of at least 1 hour

2. At the take-off site, the observer must note the pilot's name and the type and serial

number of instrument to be used. He must verify that the case is intact and undamaged.
He must inspect both Flytec seals on the back of the unit and ensure that they are in
place and undamaged.

3. The observer must switch the instrument on and check that the time, the date and the

take-off altitude have been set correctly. If any of these values are incorrect, the obser ­ver must set them to the correct value ( setting mode altimeter 1.) The time has to
be corrected in the time mesurement display setting mode.

ATTENTION:The real time clock and the date can no longer be altered once the baro­graph recording has been activated with the REC switch. These two functions can only
be reset when the memory has been cleared ( setting mode of the barograph).

4. The observer must switch the barograph on (REC).

5. The observer must continuously observe the pilot until take-off and verify that the pilot

takes off with the instrument. The observer must note the exact time of take-off using
an independent timepiece.

6. After landing, the pilot must set the REC switch and then the instrument to Off.

7. Printout: The observer must verify that the instrument displays the correct time and date

and note any discrepancies with respect to local time. The observer must verify that the

instrument is intact. He must also inspect both seals and ensure that they are undama­ged. He must ensure that the instrument is connected directly to the printer by a single
cable. The observer must also verify that nothing else is connected to the printer , e.g. an

additional cable or instrument. Connection of the printer to the electrical mains is, howe­ver , permissible. The observer must verify that the printer paper is blank.

8. The observer starts the printout of the flight record and verifies that the Instrument num­ber printed out is identical with the number noted at take-off. The observer must also
verify that the time of take-off and the date in the printout agree with his records. The
observer must be present during the entire printout procedure. When the printout is finis­hed, the observer must remove the entire printout from the printer and add the date and

his own signature.

The observer must ensure that FAI r egulations ar e adhered to.

Water damage
If the instrument is damaged by water, remove the batteries at once. In the case of salt water,

rinse the instrument thoroughly with handwarm fresh water . Then leave the instrument to dry out
and send it as soon as possible to your FLYTEC dealer or to FLYTEC itself for checking.

Warning: Never try to dry it out in a microwave oven!

Flytec

Operating Instructions FL YTEC 4030 31

ASCII-table

32 52 4 72 H 92 \ 112 p
33 ! 53 5 73 I 93 ] 113 q
34 “ 54 6 74 J 94 ^ 114 r
35 # 55 7 75 K 95 _ 115 s
36 $ 56 8 76 L 96 ` 116 t
37 % 57 9 77 M 97 a 117 u
38 & 58 : 78 N 98 b 118 v
39 ‘ 59 ; 79 O 99 c 119 w
40 ( 60 < 80 P 100 d 120 x
41 ) 61 = 81 Q 101 e 121 y
42 * 62 > 82 R 102 f 122 z
43 + 63 ? 83 S 103 g
44 ` 64 @ 84 T 104 h
45 ` 65 A 85 U 105 i
46 . 66 B 86 V 106 j
47 / 67 C 87 W 107 k
48 0 68 D 88 X 108 l
49 1 69 E 89 Y 109 m
50 2 70 F 90 Z 110 n
51 3 71 G 91 [ 111 o

PC and printer interface

black

white

CTS

TxD

TxD CTS

GND

GND

RxD

RxD

GND

DTR

Front view

Front view

Front view

PRINTER

blue

Instrument socket

VARIO 40x0

RS 232 Printer Cable

Cabel socket

Transmit data:

9600 Baud / 8 Bit / no parity

Operating Instructions FL YTEC 4030 32

RUN SET OPTION

Key Level 1 Level 2 Level 3 Level 4

ALT 1

ALT 2

CHRONO

SPEED

TIME

MEMO

VARIO

SINK

Altitude-setting

ALT1

Units ALT1

(m/ft)

Pressure units

Sensor

correction

Units

VARIO

SPEED

units

SPEED

correction

Pilot

name

GPS

on/off

ALT 2 Units

(m/ft)

Absolut- or

relative altitude

Time display

Unities

TEMP

Printout

width

Audio

response level

Target

altitude

Altitude-setting

ALT2

Reset

± Wind component

horizontal

Stall alarm

Temperature

display

Printer-emulation

Basic attenuation

Recording

parameters

Integrationtime

time, date, year

Clear MEMO

(ALT 4 Sec.)

Pol 1

Alt ➞ 20..120 km/h

➞ Descent value

Final approach

computer on/off

Set Descentalarm

Key 4 Sec

Key Key

Key

CLEAR ALT 2

START - STOP

RESET

OPTION

Funktion overview

When the barograph is switched on the only changings that can be donne are marked with
an asteriks (*)

Markers (in the barogram) can be set by pressing the key for 4 seconds.
The OPTION-Mode is locked with the barograph switched on.

ALT 1
ALT 2

CHRONO

*

*

CLEAR ALT 2

START - STOP

RESET

OPTION

Pol 2

Alt ➞ 20..120 km/h

➞ Descent value

CLEAR ALT 2

START - STOP

RESET

OPTION

Pol 3

Alt ➞ 20..120 km/h

➞ Descent value

CLEAR ALT 2

START - STOP

RESET

OPTION

Pol 4

Alt ➞ 20..120 km/h

➞ Descent value

CLEAR ALT 2

START - STOP

RESET

OPTION

Flytec

Flytec

Allgemein: Sollte es nicht heissen “speed indicator” statt “speedometer” ??
Ebenfalls: “km/h” statt “km/h” (beide kommen vor!)

1
Introduction
Connection to a GPS navigation receiver
Setting a GPS NMEA183 interface
(Korrektur im englischen Text: NMEAstatt “NEMA” auf Seite 18)

4

3. Glide ratio display

8. Speed sensor Socket

9. PC, printer and GPS interface

5

..... the relevant function key for approximately 3 seconds.

6

..... and option modes as well as additional configurations can .....

11
Y ou can enter the vario’ s setting mode by holding down the $$ key (for approximately 3
seconds).
This automatically activates the final approach computer (on) or, if pressed again, deactiva­tes it (off). The preset wind component is shown in the SPEED display for the purpose of
information.

13/14
Descent alarm and polar input setting mode

Descent alarm and polar input option mode

Four polars can be defined and saved .....

Activating the polars
Press the $$ key to activate one of the four polars. The polar number is displayed in the
upper digital vario window. The polar selected remains activated after exiting OPTION mode.

Polar input
After selecting the polar, the relevant supporting values can be entered manually. Pressing
the $$ key starts polar input at 20 km/h. The current horizontal speed is shown in the SPEED
display. The flashing display shows the corresponding descent value. The value can be ente­red in steps of 0.1 m/s with the $$ and $$ keys. Pressing the $$ key again increases the