Digifly AIR Pro BT User Manual
AIR Pro BT
Firmware 142 IT
Rev. 53 a UK
User Manual
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CONGRATULATIONS
Thank you for choosing Digifly!
You have purchased a high technology instrument designed expressly for free flight. The multiple functions
and flight data it provides, effectively make it an on board computer. Learning to use this instrument will
make your flying easier in terms of performance and safety. It will enable you to improve your flying
technique and make piloting decisions more quickly thanks to the comprehensive flight information that
is provided. Another benefit is the ability to download and analyze your flight data afterwards.
Our designing effort foresees also to the future software developments, so the software at the heart of this
instrument can be updated at any time via the Internet using the Digifly PC cable.
DIGIFLY INTERNATIONAL GUARANTEE
Dear Customer,
Thank you for purchasing this Digifly product which has been designed and manufactured to the highest
quality standards. Digifly warrants this product to be free from defects in materials and workmanship for
3 years from the date of purchase.
The Digifly guarantee applies provided the product is handled properly for its intended use, in accordance
with its operating instructions and upon presentation of the original invoice or cash receipt, indicating the
date of purchase, the dealer’s name, the model and the serial number of the instrument.
The customer is however, responsible for any transportation costs. The unit must be securely packaged for
return.
The Digifly guarantee may not apply if:
- The documents have been altered in any way or made illegible.
- Repairs or product modifications and alterations have been executed by unauthorized person or service.
- Damage is caused by accidents including but not limited to lightning, water or fire, misuse or neglect, or
every malfunction not related to manufacturing defects of your instruments.
If your Digifly product is not working correctly or is defective, please contact your Digifly dealer. In order to
avoid unnecessary inconvenience.
Digifly Europe s.r.l.
Bologna
Italy
www.digifly.com
info@digifly.com
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1 INDEX
1 INDEX .................................................................................................................................................................. 3
2 GETTING STARTED ............................................................................................................................................ 6
2.1 CONNECTIONS ................................................................................................................................................................... 6
2.2 BATTERY ............................................................................................................................................................................. 6
2.2.1 BATTERY RECHARGE ............................................................................................................................................... 6
2.2.2 EXTERNAL POWER SUPPLY .................................................................................................................................... 6
2.3 KEYBOARD - NORMAL OR LONG KEY PRESS ............................................................................................................... 6
2.4 TURNING ON & OFF ........................................................................................................................................................... 7
2.5 DISPLAY CONTRAST ADJUSTMENT ................................................................................................................................. 7
2.6 MENU................................................................................................................................................................................... 7
2.6.1 DISPLAY’S FIELS EDITING ....................................................................................................................................... 7
2.6.2 ALPHANUMERICAL FIELDS EDITING ..................................................................................................................... 8
2.7 MULTI LANGUAGE HELP ................................................................................................................................................... 8
2.8 RESTORE FACTORY SETTINGS ........................................................................................................................................ 8
2.9 RESET .................................................................................................................................................................................. 8
3 QUICK REFERENCE GUIDE ................................................................................................................................. 9
3.1 SYMBOLS MENU ................................................................................................................................................................ 9
3.2 PLOTTER SCREEN ........................................................................................................................................................... 10
3.3 COMPASS SCREEN ......................................................................................................................................................... 11
4 DISPLAY .......................................................................................................................................................... 12
4.1 MAIN SCREENS .............................................................................................................................................................. 12
4.2 PLOTTER AND COMPASS SCREENS – INSTRUMENTS FIELDS ............................................................................ 13
4.2.1 VARIOMETER ....................................................................................................................................................... 13
4.2.2 ANEMOMETER ..................................................................................................................................................... 13
4.2.3 GRAPHIC ALTIMETER ........................................................................................................................................ 13
4.2.4 COMPASS SCREEN ESSENTIAL INSTRUMENTS ........................................................................................... 13
4.2.5 PLOTTER PAGE ESSENTIAL INSTRUMENTS ..................................................................................................... 13
4.2.6 NAVIGATION PLOTTER SCREEN ...................................................................................................................... 14
4.2.7 HSI NAVIGATION PLOTTER PAGE ................................................................................................................... 14
4.2.8 BEARING COMPASS .......................................................................................................................................... 14
COMPASS SCREEN MAIN FIELDS .......................................................................................................................................... 14
4.2.9 COMPASS SCREEN, NAVIGATION TO THE START LINE ................................................................................. 14
5 BASIC FUNCTIONS ........................................................................................................................................... 15
5.1 ALTIMETERS .................................................................................................................................................................... 15
5.1.1 ALTIMETERS SETTINGS ........................................................................................................................................ 15
5.2 VARIOMETERS ................................................................................................................................................................ 15
5.2.1 SUPERFAST INTELLIVARIO ................................................................................................................................... 15
5.2.2 VARIO SENSIBILITY ............................................................................................................................................... 15
5.2.3 VARIO REACTIVITY ................................................................................................................................................ 16
5.2.4 ANALOGICAL VARIO .............................................................................................................................................. 16
5.2.5 INTEGRATED AVERAGE VARIO ............................................................................................................................ 16
5.2.6 ACOUSTIC VARIO ................................................................................................................................................... 16
5.2.7 ACOUSTIC VARIO PRE-THERMAL ADVIDSE ...................................................................................................... 17
5.2.8 VARIO SIMULATOR ................................................................................................................................................ 17
5.3 AIR SPEED (ANEMOMETER WITH OPTIONAL PITOT TUBE) .................................................................................. 17
5.4 ANEMOMETER SETTING (WITH OPTIONAL PITOT TUBE) ....................................................................................... 17
5.5 TIME & CHRONOGRAPH ................................................................................................................................................ 17
5.6 DISTANCES ...................................................................................................................................................................... 18
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5.7 AIR EFFICIENCY (GLIDE RATIO) .................................................................................................................................... 18
5.8 TRACKING & BEARING .................................................................................................................................................. 18
5.9 BAROMETER ................................................................................................................................................................... 18
5.10 TIME/CHRONOGRAPH SETUP ..................................................................................................................................... 18
5.11 PILOT’S NAME & GLIDER’S DATA ................................................................................................................................. 19
6 ADVANCED FUNCTIONS .................................................................................................................................. 19
6.1 TOTAL ENERGY COMPENSATION ................................................................................................................................. 19
6.2 POLAR (WITH OPTIONAL PITOT TUBE) ......................................................................................................................... 19
6.3 SPEED TO FLY (WITH OPTIONAL PITOT TUBE) ........................................................................................................... 20
6.4 MCCREADY (WITH OPTIONAL PITOT TUBE) .............................................................................................................. 21
6.5 EQUIVALENT CCREADY (WITH OPTIONAL PITOT TUBE) ............................................................................................. 21
6.6 NETTO VARIO (WITH OPTIONAL PITOT TUBE) ............................................................................................................ 21
7 GPS FUNCTIONS .............................................................................................................................................. 22
7.1 INTEGRATED 99 CHANNELS GPS RECEIVER ............................................................................................................ 22
7.2 GPS STATUS INFORMATION ......................................................................................................................................... 22
7.3 GPS INFORMATION DISPLAY ........................................................................................................................................ 22
7.4 LATITUDE & LONGITUDE COORDINATES OPTIONS .................................................................................................... 22
7.5 GPS ALTITUDE ................................................................................................................................................................. 22
7.6 GPS GROUND SPEED ................................................................................................................................................... 22
7.7 GPS DIRECTION (TRK) .................................................................................................................................................... 23
7.8 GROUND EFFICIENCY (GLIDE RATIO) ........................................................................................................................... 23
7.9 WIND SPEED AND DIRECTION INDICATION USING GPS ...................................................................................... 23
7.10 LAST THERMAL DIRECTION, DISTANCE, HEIGHT INFORMATION ......................................................................... 23
8 WAYPOINT MANAGEMENT ............................................................................................................................ 23
8.1 DATABASE WAYPOINT COMPETITION AND WAYPOINT USER ............................................................................... 23
8.1.1 CREATING A NEW WAYPOINT MANUALLY .................................................................................................... 24
8.1.2 CREATING A NEW WAYPOINT USING THE CURRENT POSITION (MARK) .............................................. 24
8.1.3 EDIT WAYPOINT .................................................................................................................................................... 24
8.1.4 DELETE WAYPOINT............................................................................................................................................... 24
9 NAVIGATE TO A WAYPOINT (GOTO) ........................................................................................................... 25
9.1 ACTIVATING NAVIGATION TO A WAYPOINT (GOTO) ............................................................................................... 25
9.1.1 NAVIGATION TO WAYPOINT HOME (GOTO HOME) ....................................................................................... 25
9.1.2 NAVIGATION TO THE NEAREST LANDING ZONE (GOTO LANDING) ................................................................ 25
9.1.3 NAVIGATION TO THE NEAREST WAYPOINT (GOTO NEAREST) ................................................................... 25
9.1.4 NAVIGATION TO A GENERIC WAYPOINT (GOTO) .......................................................................................... 25
9.1.5 DEACTIVATING NAVIGATION TO A WAYPOINT (GOTO)................................................................................ 26
9.2 NAVIGATION’S FUNCTIONS TO A WAYPOINT (GOTO) ............................................................................................ 26
9.2.1 DIRECTION, DISTANCE, HEIGHT TO CURRENT WAYPOINT (GOTO) .......................................................... 26
9.2.2 NEEDED GLIDE RATIO TO THE CURRENT WAYPOINT (GOTO) ................................................................... 26
9.2.3 ARRIVAL HOUR, ARRIVAL TIME TO THE CURRENT WAYPOINT (GOTO) ................................................ 26
9.2.4 HSI GRAPHIC INDICATION TO THE CURRENT WAYPOINT (GOTO) .......................................................... 26
10 ROUTE MANAGEMENT ................................................................................................................................... 26
10.1 PREFIXED GENERAL ROUTES .................................................................................................................................... 26
10.1.1 VISUALIZING WAYPONT DATA OF A ROUTE ................................................................................................. 27
10.1.2 INSERT A WAYPOINT IN A ROUTE .................................................................................................................. 27
10.1.3 SUBSTITUTE A WAYPOINT IN A ROUTE ......................................................................................................... 27
10.1.4 MODIFY A WAYPOINT IN A ROUTE (PARAMETER CHANGE) ...................................................................... 27
10.1.5 DELETE A WAYPOINT IN A ROUTE ................................................................................................................. 29
10.2 ACTIVATING A ROUTE ................................................................................................................................................... 29
10.3 DE-ACTIVATING A ROUTE ............................................................................................................................................. 29
10.4 DELETING A ROUTE ...................................................................................................................................................... 29
11 OPERATION CHECKLIST BEFORE A TASK .................................................................................................. 30
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12 NAVIGATION ROUTE ........................................................................................................................................ 30
12.1 DIRECTION, DISTANCE & HEIGHT ON THE WAYPOINTS ............................................................................................ 30
12.2 NEEDED GLIDE RATIO TO CURRENT WAYPOINT / NEXT WAYPOINT / GOAL .................................................... 30
12.3 OPTIMIZED NAVIGATION .............................................................................................................................................. 31
12.4 NAVIGATION TO START PYLON WAYPOINT ............................................................................................................. 31
12.5 NAVIGATION TO STANDARD WAYPOINT ..................................................................................................................... 33
12.6 NAVIGATION TO CONCENTRIC WAYPOINT ............................................................................................................... 33
13 FLIGHT RECORDER ......................................................................................................................................... 34
13.1 ACTIVATING / DE-ACTIVATING FLIGHT RECORDER .................................................................................................. 34
13.1.1 AUTOMATIC START RECORD MODE “AUT” ........................................................................................................ 34
13.1.2 ALWAYS ACTIVE RECORD MODE “ALW” ............................................................................................................ 34
13.1.3 RECORD MODE OFF “OFF” ................................................................................................................................... 34
13.2 RECORD RATE ................................................................................................................................................................. 34
13.3 LOG BOOK MANAGEMENT (LOG BOOK ) ................................................................................................................... 35
14 CONNECTIONS, INTERFACES & MEMORY CARD .......................................................................................... 35
14.1 USB CABLE CONNECTION .............................................................................................................................................. 35
14.2 BLUETOOTH CONNECTION............................................................................................................................................ 36
14.2.1 DEVICES CONNECTION “PAIRING” ...................................................................................................................... 36
14.2.2 BLUETOOTH DATA TRANSFER ACTIVATION ....................................................................................................... 37
14.3 ADDITIONAL MEMORY ................................................................................................................................................ 37
15 SOFTWARE ...................................................................................................................................................... 38
15.1 SOFTWARE COMPATIBILITY ......................................................................................................................................... 38
15.2 SOFTWARE: DIGIFLY AIRTOOLS .................................................................................................................................. 38
15.3 SOFTWARE: GPSDUMP PC & GPSDUMP MAC ......................................................................................................... 38
15.4 FIRMWARE UPDATE (INSTRUMENT'S SOFTWARE) .................................................................................................... 39
15.5 FIRMWARE UPDATING PROCEDURE ........................................................................................................................... 39
15.6 TELEMETRY DATA OUTPUT .......................................................................................................................................... 40
15.6.1 TELEMETRY DATA SELECTION ........................................................................................................................... 40
15.7 LK8000 ............................................................................................................................................................................ 42
15.8 XCSOAR ........................................................................................................................................................................... 42
16 APPENDIX ........................................................................................................................................................ 43
16.1 DIGIFLY AIR STANDARD ACCESSORIES ................................................................................................................... 43
16.2 OPTIONAL ACCESSORIES ............................................................................................................................................. 43
16.3 TECHNICAL FEATURES .................................................................................................................................................. 43
16.3.1 STANDARD FUNCTIONS ........................................................................................................................................ 43
16.3.2 ADVANCED FUNCTIONS ........................................................................................................................................ 43
16.3.3 GPS FUNCTIONS .................................................................................................................................................... 43
16.3.4 GENERAL SPECIFICATIONS ................................................................................................................................. 44
16.4 MAIN SET UP MENU PARAMETERS .............................................................................................................................. 45
16.5 VARIOMETER SETUP PARAMETERS .......................................................................................................................... 45
16.6 ADV-SETUP PARAMETERS MENU (ADVANCED SETUP) ........................................................................................... 46
16.7 RESTORE FACTORY SETTINGS (DEFAULT PARAMETERS) ........................................................................................ 46
16.8 RESET ............................................................................................................................................................................... 46
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2 GETTING STARTED
2.1 CONNECTIONS
The mini USB socket provides the battery charge and the link to a Personal Computer.
Micro SD card slot.
Bluetooth connection.
2.2 BATTERY
The main power is supplied by an internal rechargeable high capacity lithium battery. This battery has no
memory effect, so it can be partially recharged, without affecting the battery’s time life. It also has a very low
self-discharge rate (more than one year) and works very well at low temperatures. A fully charged battery life
ranges over 30 hours.
When the battery’s icon starts to blink there are roughly 4 hours use remaining.
2.2.1 BATTERY RECHARGE
To recharge the instrument insert the charger plug or other mini USB accessory and wait till the battery level
indicator is totally filled.
The required time for a full charge is about 8 hours.
There are no problem if you leave the vario charging for more than 8 hours, as the vario automatically
switches to a “maintain mode” to prevent the battery’s overcharge.
The Digifly AIR’s lithium battery has no “memory effect”, so it can be also partially charged.
2.2.2 EXTERNAL POWER SUPPLY
The mini USB socket can be used to power the instrument and simultaneously charge the internal battery for
unlimited time.
With the instrument turned on, it is necessary an external stabilized 5VDC power supply (e.g. a solar panel)
and a minimum of 150mA to properly power the instrument. The exceeding electric current will be used
charge the internal lithium battery. Proper solar panels are suitable to power the instrument.
2.3 KEYBOARD - NORMAL OR LONG KEY PRESS
The time length you press the keys on your Digifly instrument selects the available functions.
Normal press key means to press the button for less than a second
For a long key press, you must keep the button pressed down for at least 2 seconds
When not specified, the key press has to be considered as a normal key press (less than a second).
mini USB connector
micro SD slot
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2.4 TURNING ON & OFF
To turn on your Digifly instrument, press the key at least for 4 seconds.
To turn off your Digifly instrument, press the key at least for 4 seconds.
After switching off your Digifly instrument, you must wait at least 5 seconds before to be able to turn it on
again. This prevents unwanted operation e.g. during the transit in your glider bag.
After turning on your Digifly instrument, the first screen briefly shows the vario model, pilot name (if set),
logger status, vario serial number, software version, date, time and battery voltage.
2.5 DISPLAY CONTRAST ADJUSTMENT
The LCD display contrast can be adjusted to suit ambient light conditions using the keys: ‘arrow UP’ or
‘arrow DOWN’ , operating from the pages ‘plotter’ or ‘compass’.
To change the contrast of the display, press the key to enter in the “MAIN SETUP” menu, select the menu
(MAIN SETUP \ n. 1 CTRS), go to the edit mode pressing the key , set the preferred contrast using the keys:
‘arrow UP’ or ‘arrow DOWN’ , then save the changes pressing the key .
2.6 MENU
To navigate the menus of your instrument press the key (“MENU”
function).
To select the sub-menus navigate the list UP or DOWN using the
arrow keys then confirm your choice pressing the key (“ENT”
function).
To exit and come back to the main screen press the key (“ESC”
function).
2.6.1 DISPLAY’S FIELS EDITING
To change parameters and settings, select the parameter you want to
change navigating UP or DOWN using the keys, press the
key (“EDIT” function) to enter in the edit mode.
To change the value of the selected parameter use the keys, every parameter’s change is
automatically saved (“AUTOSAVE” function), a longer press of the keys activate the quick parameter’s
change (“AUTOREPEAT” function).
To exit from the edit function press the key (“ESC” function).
MENU
Wpt Airfields
Wpt Nearest
Wpt Competitions
Wpt Users
Routes
Altimeters
Logbook
AirTools
Main Setup
Advanced Setup
Variometer Setup
Bluetooth pairing
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2.6.2 ALPHANUMERICAL FIELDS EDITING
The alphanumerical fields editing is different from the standard one described in the above paragraph,
because it is possible to modify every single character of the field.
To modify the field press the key (“EDIT” function) to activate the edit mode.
Use the arrow keys to change the character shown in reverse mode on the display, every parameter’s
change is automatically saved (“AUTOSAVE” function), a longer press of the arrow keys activate the quick
parameter’s change (“AUTOREPEAT” function),
Pressing the key, it is possible to shift to the character on the right to edit it, repeatedly pressing key it
is possible to scroll toward right all the field’s characters to come back to the first of the field. A longer press
of the key comes back toward left. To exit press the key.
2.7 MULTI LANGUAGE HELP
In the menus are visible some help messages, e.g.: help to set the parameters. For these messages it is
possible to set the preferred language entering in the MAIN SETUP menu (MAIN SETUP \ n. 2 LANG) then
select the language you prefer and confirm.
IMPORTANT: after every firmware update, it is necessary to update also the help file containing the messages.
The help file update can be done from your PC using the Digifly AirTools, function: “upload HELP”.
2.8 RESTORE FACTORY SETTINGS
To restore the factory settings (default values for all parameters), turn on the instrument pressing at the same
time and holding down the keys & until the message “FACTORY SET?” appears. To confirm press the
key and the display will show the “SETUP RESET” message, to avoid the restore press the key.
2.9 RESET
If a system crash would occur with a consequent instrument’s block, to reset its functions press at the same
time the keys: and holding them pressed for more than 4 seconds.
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3 QUICK REFERENCE GUIDE
3.1 SYMBOLS MENU
Battery level
Bluetooth activated
GPS connected
Flight recorder on
Volume level
Direction toward the center of the current Waypoint
Direction toward the current WP accordingly to the optimized route
Direction to the current WP for optimized route, HIS representation
Closest START line direction
Last thermal direction
Wind direction
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3.2 PLOTTER SCREEN
Mini USB connector
Batt. charge / PC
McCready
Digital vario
Altimeter A1
WP name
Current glide ratio
McCready equivalent
Direction to WP
center
Analogical vario scale
Analogical avg. vario
Volume level
● Contrast +
● ● Instrument On/Off
● Contrast -
● ● Volume level 1-2-Off
Bluetooth ON
Analogical G-meter
Analogical vario
Memory card slot
micro SD
Compass
Ground speed GPS
Height to WP
Optimized route to WP
Required glide ratio to the
next WP
Digital anemometer
Analogical
Battery level
GPS signal
Flight recorder ON
● Menu / Return
● Change page
● ● Reset altimeter A2
Distance to WP
Optimal spd to fly STF
Direction symbols
Wind direction /speed
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3.3 COMPASS SCREEN
● = Normal key pressure ● ● = Long key Pressure (2 seconds)
McCready equivalent
Digital Vario
Analogical altimeter
A1 digital altimeter
McCready
Volume level
Analogical vario scale
Analogical avg. vario
Compass main points
● Contrast +
● ● Instrument On/Off
● Contrast -
● ● Volume level 1-2-Off
External compass ring
(direction to WP)
Bluetooth ON
Internal compass ring
(thermal & wind)
Analogical G-meter
Analogical Vario
Syspem, symbols
battery, GPS, recorder
GPS ground speed
Time to START
Optimal spd to fly STF
Distance to WP
Req.glide ratio to next
Distance to GOAL
Analogical Anemometer
Clock
Digital anemometer
START line distance
START direction
Current glide ratio
● Menù / Return
● Change page
● ● Reset alimeter A2
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4 DISPLAY
4.1 MAIN SCREENS
The Digifly Air features a lot of different main screens (page), to manually change the pages press the key.
PLOTTER PAGE
COMPASS PAGE
INFO GPS PAGE
LatLon ddmmss.ss
05 43’46.5N
005 43’46.5E
141 Tracking
00 Ground Speed
245 Altitude GPS
03/11/13 16:12:03
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4.2 PLOTTER AND COMPASS SCREENS – INSTRUMENTS FIELDS
4.2.1 VARIOMETER
In the variometer’s informations area can be seen:
o Digital variometer;
o Average vario / Netto vario;
o Mc Ready value;
o Mc Ready equivalent value
4.2.2 ANEMOMETER
In the shown anemometer’s informations area can be seen:
o Analogical gauge - roll type- of Indicated Air Speed (IAS);
o Indicated Air Speed (IAS) digital value;
o Ground speed GS;
o Optimal glide speed STF;
If the optional Pitot tube is not installed, it will be shown analogically and
digitally the ground speed (GS) only.
4.2.3 GRAPHIC ALTIMETER
In the COMPASS page, the altimeter’s digital information is integrated with a
graphic sliding scale. This scale is intuitive to be understood and feature a
numeric indication of the 500 and 1000 m altitude’s gap in a graphic design that
enables, at a glance, a visual distinction of the height. It features also a simple
graduated scale for the hundreds meters.
4.2.4 COMPASS SCREEN ESSENTIAL INSTRUMENTS
In the COMPASS page the essential flight info are simply shown aligned in a
raw.
Aligned with the digital variometer you can find the altimeter A1 value, the
current glide ratio and the Indicated Air Speed (if the optional pitot tube is
installed) or the GPS ground speed
4.2.5 PLOTTER PAGE ESSENTIAL INSTRUMENTS
In the PLOTTER page, the essential info are slightly different from the compass
page, to allow the availability of a larger amount of info for the navigation.
Aligned to the digital variometer, on the display’s opposite side is located the
IAS/GS indicator, while the altimeter A1 and the glide ratio are positioned on the
left-upper side of the display.
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4.2.6 NAVIGATION PLOTTER SCREEN
In the PLOTTER page the navigation is based on a graphic perspective plotter that
features:
o Graphic representation of the flight track toward the current WP;
o Graphic representation of the current WP cylinder;
o Optimized course line to the current WP cylinder;
o Optimized course line to the next WP;
o Wind’s direction and intensity;
The following info are listed in digital format:
o Required glide ratio to the current WP and its distance;
o Expected height of arrival above the Current WP and current glide ratio;
o Current WP name.
4.2.7 HSI NAVIGATION PLOTTER PAGE
In the center of the PLOTTER page are represented two dotted lines crossed,
where the crossing point indicates the current WP with its real altitude. During
the glide to WP the “plane” symbol, moves toward the right or the left of the
vertical dotted line to indicate a wrong route to the cylinder’s center and moves
above or below the horizontal dotted line to indicate if with the current glide will
arrive above or below the WP.
Along the horizontal line, the symbol represents the optimized direction to the current WP.
4.2.8 BEARING COMPASS
On the bottom of the PLOTTER page there is a bearing compass showing also all
the navigation’s info with graphics symbols (WP direction, wind etc.…).
If the GPS signal is valid, the direction is the TRK of the GPS track, otherwise it is
represented the AIR’s internal magnetic compass.
COMPASS SCREEN MAIN FIELDS
In the COMPASS page, the navigation info are represented with a series of
concentric circles with some rotating symbols:
- Outside the circle there are the N-E-S-W points;
- In the outer ring are rotating the direction to WP symbols;
- In the inner ring are rotating the direction to the last thermal, the wind direction
and wind speed symbols.
4.2.9 COMPASS SCREEN, NAVIGATION TO THE START LINE
In the COMPASS page, during the task’s phase preceding the Start, the pilot finds some
specific info to navigate to the Start line.
On the top section there is a clock and below a field with the countdown timer to start.
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