Page 1
SPECIFICATIONS
Wingspan:
Wing
Area:
41.5 i n
[1055 mm]
297 in
[19.2 dm2]
™
Wing
Loading:
2
Length:
13.6 – 15 oz/ft
[42 – 46 g/dm2]
34.5 in
[875 mm]
2
®
Weight:
28 – 31 oz
[795–880 g]
Radio:
4 – 5-channel
(required)
INSTRUCTION MANUAL
WARRANTY
Hobbico guarantees this kit to be free from defects in both
material and workmanship at the date of purchase. This
warranty does not cover any component parts damaged by use
or modication. In no case shall Hobbico’s liability exceed the
original cost of the purchased kit. Further, Hobbico reserves
the right to change or modify this warranty without notice.
In that Hobbico has no control over the nal assembly or
material used for nal assembly, no liability shall be assumed nor
accepted for any damage resulting from the use by the user of
the nal user-assembled product. By the act of using the
user-assembled product, the user accepts all resulting liability.
If the buyer is not prepared to accept the liability associated
with the use of this product, the buyer is advised to return
READ THROUGH THIS MANUAL BEFORE STARTING CONSTRUCTION. IT CONTAINS IMPORTANT
INSTRUCTIONS AND WARNINGS CONCERNING THE ASSEMBLY AND USE OF THIS MODEL.
© 2015 Flyzone, a Hobbico company. FLZA3024 Mnl
this kit immediately in new and unused condition to the
place of purchase.
To make a warranty claim send the defective part or item to
Hobby Services at the address below:
Hobby Services
3002 N. Apollo Dr. Suite 1
Champaign IL 61822 USA
Include a letter stating your name, return shipping address, as
much contact information as possible (daytime telephone
number, fax number, e-mail address), a detailed description of
the problem and a photocopy of the purchase receipt. Upon
receipt of the package the problem will be evaluated as quickly
as possible.
Page 2
INTRODUCTION
REPLACEMENT PARTS LIST
ORDER NO.
FLZA6214
FLZA6620
FLZA6621
FLZA6622
FLZA6623
FLZA6624
FLZA6625
FLZA6626
FLZA6627
FLZA6628
FLZA6629
FLZA6630
FLZA6631
GPMG
2005
GPMQ6600
DESCRIPTION
Propeller Adapter 4mm Shaft
Fuselage
Wing
Tail Surfaces
Cowl
Landing Gear
Landing Gear Covers
Wheel Pants
Canopy/Hatch
Spinner
Tail Wheel Assembly
Servo
Wing Bolt
35mm 1000kV 77g Outrunner Motor
10x4.5 Power Flow Propeller (2)
LiPo Charger
Thank you for purchasing the Flyzone Extra 300SX. The
Extra was originally intended as a 3D-capable platform,
but because of its power-to-weight ratio and wellmannered ight characteristics, the Extra is also a great
sport yer for average pilots when the control throws are
set to low or high rates.
For the latest technical updates or manual
corrections scan the QR code, or visit the
Flyzone web site at www. yzoneplanes.
com. Click the airplane icon at the top
of the page, then select the Extra 300SX
when the airplane page opens. A “Tech
Notice” box indicates corrected or
updated technical information.
ADDITIONAL ITEMS REQUIRED
Radio System
The Extra 300 can become airborne with any 4-channel
radio system, but to take advantage of its sport ying
and/or 3D capabilities a modern computer radio with
standard features such as a timer, channel mixing, dual
rates and exponentials is required. The Tactic TTX650 or
TTX850 are both viable options that t this criteria:
Tactic TTX 650 6-channel SLT computer transmitter
❑
(TACJ2650)
Tactic TTX 850 8-channel SLT computer transmitter
❑
(TACJ2850)
Tactic TR624 6-Channel SLT Receiver (TACL0624)
❑
Batteries for transmitter: Hobbico HydriMax
❑
NiMH 4-Cell 4.8V 2000mAh Flat AA receiver pack
(HCAM6321) OR Duratrax Onyx AA Alkaline Battery
(4-pack, DTXP4704)
The bare minimums to look for in a charger are LiPo
balancing and the ability to charge at a minimum rate of
1C. An LED readout and AC capability are also convenient
features. The Great Planes Triton EQ AC/DC charger meets
all the above:
GPMM3155 Great Planes ElectriFly Triton EQ AC/DC
❑
Charger
ORDERING REPLACEMENT PARTS
Before starting to build, inspect the parts to make sure they
are of acceptable quality. If any parts are missing or are not
of acceptable quality, or if you need assistance with assembly,
contact Product Support.
Flyzone Product Support
3002 N. Apollo Drive, Suite 1 Ph: (217) 398-8970, ext. 5
Champaign, IL 61822 Fax: (217) 398-7721
E-mail:
airsupport@ yzoneplanes.com
The Extra was primarily designed as a 3D-capable aircraft
with a 3S 1800mAh LiPo. A 3S 2200mAh LiPo is also
suitable, but the additional weight of a heavier battery may
detract from its 3D performance slightly. In any case, if
you start experimenting with batteries and propellers, be
certain you don’t exceed the ESC’s maximum 30A rating.
3S 11.1V 1800mAh 30C LiPo (GPMP0855)
❑
3S 11.1V 2200mAh 30C LiPo (GPMP0861)
❑
For additional batteries, adhesive-back hook-&-loop
❑
Velcro is also recommended (GPMQ4480)
LiPo Battery
2
Page 3
1
y
2
7
Fuselage
Foam fuselage
Foam canopy hatch w/pilot
Foam cowl
30A ESC
Motor
Elevator servo
Rudder servo
Control linkage (elevator, rudder
pushrods, screw-lock connectors,
90° pushrod connectors)
3
6
9
8
11
10
Wing
Foam wing
Aileron servos (2)
Servo extensions
Y-harness
Aileron linkage (pushrods, screw-lock
connectors, 90° pushrod connectors)
R&L horizontal stabilizer halves
R&L main landing gear wires
w/50mm wheels, retainers
R&L main landing gear covers
5
10 x 4.5 propeller
1-3/4" spinner
Propeller adapter assembl
Elevator joiner rod
Tail gear assembly
NOT PICTURED
Velcro
1.5mm hex key wrench
M3 set screw
M4 x 40 wing bolt
4
R&L wheel pants
ASSEMBLY
Do not mount the propeller until instructed to do so.
To remove the canopy hatch, grasp the base around the
bottom and pull up to disengage the magnets.
1. Fit the square elevator joiner tube into one of the
❑
elevators.
3
Page 4
2. Key in one stab half, then the other simultaneously
❑
tting the other end of the joiner tube into the other
elevator. Press both halves rmly together to make sure
they are centered in the fuselage and securely keyed all
the way into each other.
3. Check that the screws in the screw-lock connectors
❑
are not tight so the pushrods can temporarily “ oat” until
the radio is set up later.
5. Fit the tail gear wire into the tail gear assembly and
❑
secure with the M3 set screw lightly wetted with thread
locker—a 1.5mm machined hex driver is preferred, but
the included “L” wrench is suf cient. Be certain the set
screw locks onto the at spot in the wire.
6. Press the main landing gear wires all the way into
❑
the receptacles in the fuselage with the longer, “strut”
portion of the wires toward the front as shown.
4. Fit the elevator and rudder pushrods into the middle
❑
hole in their respective control horns and secure with the
90° pushrod keepers.
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Page 5
The landing gear covers and wheel pants are magnetic
and simply snap into place…
9. Mount your receiver in the fuselage with the included
❑
short, adhesive-back hook-and-loop strip—note that the
high end of the receiver (that has the servo plugs sticking
out) must be ahead of the instrument panel in the canopy
hatch (marked by a line in the photo approximately 2-1/2”
[65mm] ahead of the wing bolt).
7. Install the landing gear covers, then the wheel pants.
❑
8. Install the wing while guiding the aileron servo wire
❑
up through the hole in the fuselage. Tighten the wing with
the M4 x 40 screw.
10.
❑
If using a dual-diversity receiver with two antennas, use
tape to hold the antennas perpendicular to each other as
speci ed in the instruction manual that came with your
radio control system. More tape may be used to neatly hold
the servo wires out of the way. (The servo wire extensions
on the elevator and rudder servos that appear in the image
are not needed on your model because the wires have
been lengthened since these photos were taken.)
❑
longer hook-and-loop material in the battery mounting
location in the fuselage as shown in the previous photo.
Connect the servo and ESC wires to the receiver.
11. Apply the rougher, “hook” side of the included
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Page 6
GET THE EXTRA 300SX READY TO FLY
These are the recommended control surface throws:
ELEVATOR
RUDDER
AILERON
LOW RATE 3DHIGH RATE
3/8"
[10mm]
8°
Up
3/8"
[10mm]
8°
Down
5/8"
[16mm]
14°
Up
5/8"
[16mm]
14°
Down
1-3/4"
[44mm]
35°
Up
1-3/4"
[44mm]
35°
Down
1-1/4"
[32mm]
20.5°
Left
1-1/4"
[32mm]
20.5°
Right
1-3/4"
[44mm]
27.5°
Left
1-3/4"
[44mm]
27.5°
Right
2-1/4"
[57mm]
34°
Left
2-1/4"
[57mm]
34°
Right
1/4"
[6mm]
7.5°
Up
1/4"
[6mm]
7.5°
Down
3/8"
[19mm]
11°
Up
3/8"
[19mm]
11°
Down
3/4"
[19mm]
21°
Up
3/4"
[19mm]
21°
Down
Check/Set the Control Throws
CAUTION: Do not install the propeller until instructed to do so.
3.
Measure and set the control throws as speci ed in the
❑
following table. Pilots not intending to perform 3D maneuvers
may simply program their radio for low and high-rate throws.
Most 3D pilots will use the high-rate and 3D throws;
1. Apply the softer, “loop” side of the hook-and-loop
❑
strip to the battery and install the battery in the fuselage.
2. Turn on your transmitter and power the receiver to
❑
operate the controls to make sure they are centered and
responding in the correct direction. Tighten the screws
on the screw-lock connectors on the elevator and rudder
servos and double-check to make sure the screws are
tight on the screw-locks on the ailerons.
NOTE: The control throws are measured at the widest
part of each surface—at the root ends of the elevators
and ailerons and at the bottom of the rudder.
Set the Fail Safe
Before operating the radio or running the motor for
the rst time, make sure the Fail Safe function in
your transmitter is properly set. In the event that the
receiver loses signal from the transmitter, Fail Safe
prevents the motor from running. Most important, in
the event that you inadvertently turn off the transmitter
before disconnecting the battery, the motor will not
run. But if you have not taken a moment to set Fail
Safe correctly, the motor could run at full-throttle
causing damage and possibly severe injury! Refer
to the instructions that came with your radio control
system to set the Fail Safe correctly.
For most radio control systems (such as Tactic), the
Fail Safe is set by performing the linking procedure
with the throttle stick all the way down so the motor
will be off.
After setting the Fail Safe, perform a test; this MUST
be done with the propeller removed! With the propeller
off the motor, run the motor at reduced throttle, then
turn the transmitter off. If the Fail Safe is set correctly
the motor will stop. If the motor does not stop, repeat
the procedure for setting the Fail Safe until the motor
stops when you turn off the transmitter.
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Page 7
Check the C.G. (Center of Gravity)
83mm
64mm
3-1/4"
2-1/2"
Before checking the C.G. the propeller must be mounted…
1. Temporarily pop the cowl off the fuselage just to see
❑
how the motor and ESC are mounted and to make sure
everything is connected properly. Reinstall the cowl.
2. We’ve found it unnecessary to balance the included
❑
propeller, but detail-minded pilots who demand ultimate
performance may balance the propeller on a precision
balancer such as the Top Flite Power Point Propeller
Balancer (TOPQ5700). In any case, if unusual noise or
vibration from the prop or motor is ever detected land the
plane immediately and nd the source of the problem.
3. The Extra is balanced upside-down suspended
❑
by the wing with your ngertips. This procedure will be
easiest and most accurate if you can feel the C.G. range
with your ngertips. A quick way is to temporarily insert
T-pins (or regular pins) directly into the wing at the front
and back of the C.G. range which is between 2-1/2” and
3-1/4” [64mm and 83mm] back from leading edge of the
wing at the fuselage. If you’d rather not insert pins into the
wing you can draw lines or use tape to mark the C.G, but
if you remove the tape later it will probably pull the paint
off the wing under the tape.
4. With the model in ready-to- y condition and the
❑
battery and propeller installed, lift the model by the wing
with your ngertips between the balance range. As long
as the Extra balances anywhere within the range the C.G.
is okay. If the model doesn’t balance, move the battery
forward or aft until you can get it to balance.
7
Page 8
5. Mark the location in the fuselage where to position
❑
the battery to balance. Remove the pins if you used them.
The more data you log and the more calculations you do the
more accurate your calculated ight times will be so you never
have an unplanned dead-stick landing or over discharge your
batteries. Keep in mind that changing propellers or ying
style/throttle use and sometimes even weather conditions
can affect current use, so plan accordingly.
On page 10 is a worksheet you can use for recording ight
times and recharge capacity to calculate target ight
times (as well as average, in- ight current which is also
useful data). The second row contains formulas for the
calculations for that row. Row #1 is already lled out with
gures from the example.
Set a Flight Timer
It’s better to limit your ying time with a timer set to a precalculated time instead of waiting for the LVC (low voltage
cutoff) in your ESC to kick in or until you notice a decrease
in ight performance. By then, it may be too late to make
more than one landing attempt. And it can be stressful to
your batteries, eventually decreasing performance in the
long-run.
Typical, average battery consumption with the Flyzone
Extra is approximately 200mAh/minute on 3S with the
included PowerFlow 10 x 4.5 propeller (but can be as low
as 150mAh/min. or as high as 280mAh/min.). Your ying
style/throttle use, battery condition and weather conditions
may cause the gures to vary, so until you know for sure,
start by setting your timer conservatively to 5 minutes.
If your transmitter has a timer built in, link the timer to
your throttle stick so only motor run time is counted. Fly
until the timer sounds then land. Note the time on your
transmitter and charge the battery. If your charger has a
digital readout (indicating how much capacity it took to
recharge which equals the capacity used during the ight),
divide the capacity that went back into your battery by the
ight time to calculate your average battery consumption
for that ight. Divide 80% of your battery capacity by that
consumption rate to determine your new target ight time.
Additionally, or if you don’t have a charger with a digital
readout to nd out how much capacity you used during
a ight, use a LiPo cell checker to check individual cell
voltage after each ight. The resting, non-loaded, individual
cell voltage after a ight should be no less than 3.7 V/cell.
FLYING
The ESC has an “arming” procedure that prevents the
motor from running when you connect the motor battery.
To start the motor when you are ready to y, rst turn on the
transmitter and lower the throttle stick all the way to “off.”
Connect the battery. Advance the throttle all the way, hear
the beeps from the motor, then lower the throttle stick and
hear the beeps again. The motor is now “armed” and the
propeller will turn the next time the throttle is advanced.
EXAMPLE: Suppose you are using an 1800mAh battery.
And after you landed the motor run time on the timer in
your transmitter was 5:30 (that’s 5.5 minutes). And say it
took 950mAh to recharge your battery.
Divide 950mAh by 5.5 minutes to calculate an average
battery consumption rate of about 170mAh-per-minute.
Your limit or target capacity to use from a LiPo is a maximum
of 80% of its capacity. So for a 1800mAh battery it is 1440mAh
(1800mAh x .8 = 1440mAh). 1440mAh divided by 170mAh/
minute = 8.47 minutes (we’ll round down to 8-1/2 minutes).
On your second ight perhaps set your timer to 7 minutes
and repeat the procedure to continue to log data for
calculating average target ight times.
The Extra doesn’t exhibit any unexpected ight tendencies
that require informing you about ahead of time. It’s a midwing, aerobatic sport plane, so it is very neutral with no
self-righting tendencies intended for intermediate pilots
at least. In the event of a rough landing the wheel pants
will disengage from the landing gear covers to prevent
damage. If landing in rough or tall grass you may as well
remove the pants and landing gear covers altogether.
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Page 9
SAFETY PRECAUTIONS
BATTERY CHARGING PRECAUTIONS
1. Your Extra 300 SX should not be considered a toy, but
rather a sophisticated, working model that functions very
much like a full-size airplane. Because of its performance
capabilities, the Extra 300 SX, if not assembled and
operated correctly, could possibly cause injury to yourself
or spectators and damage to property.
2. You must assemble the Extra 300 SX according to the
instructions. Do not alter or modify the model, as doing
so may result in an unsafe or un yable model. In a few
cases the instructions may differ slightly from the photos.
In those instances the written instructions should be
considered as correct.
3. You must use an R/C radio system that is in good
condition. All components must be correctly installed so
that the model operates correctly on the ground and in
the air. You must check the operation of the model and all
components before every ight.
4. If you are not an experienced pilot or have not own
this type of model before, we recommend that you get
the assistance of an experienced pilot in your R/C club
for your rst ights. If you’re not a member of a club, your
local hobby shop has information about clubs in your area
whose membership includes experienced pilots.
5. While this kit has been ight tested to exceed normal
use, if the plane will be used for extremely high stress
ying, such as racing, or if a motor or battery larger than
ones in the recommended range is used, the modeler is
responsible for taking steps to reinforce the high stress
points and/or substituting hardware more suitable for the
increased stress.
Be careful to avoid overcharging the battery. Only use
•
a LiPo approved charger. Never use a NiCd/NiMH peak
charger.
Remember to check the temperature of the battery
•
during the charge. The battery should not get hot. If it
does, unplug the battery from the charger.
Charge the battery at a maximum charge rate of 2.1
•
amps. A higher charge rate will cause the battery to get
hot.
Never place the battery on combustible material or
•
leave it unattended while charging.
Never charge the battery in the plane.
•
We recommend that a balancing charger be used to
•
charge the battery. A properly cared for battery will last
a long time. If the battery pack is continually charged
without balancing the individual cells, the life of the
battery pack will be shortened.
ACADEMY OF MODEL AERONAUTICS
If you are not already a member of the AMA, please join! The
AMA is the governing body of model aviation and membership
provides liability insurance coverage, protects modelers’
rights and interests and is required to y at most R/C sites.
Academy of Model Aeronautics
5151 East Memorial Drive
Muncie, IN 47302-9252
Tele. (800) 435-9262
Fax (765) 741-0057
www.modelaircraft.org
We, as the kit manufacturer, provide you with a top quality,
thoroughly tested kit and instructions, but ultimately the
quality and yability of your nished model depends
on how you build it; therefore, we cannot in any way
guarantee the performance of your completed model,
and no representations are expressed or implied as to
the performance or safety of your completed model.
MOTOR SAFETY PRECAUTIONS
Failure to follow these safety precautions may result
in severe injury to yourself and others.
Wear safety glasses whenever running motors.
•
Keep your face and body as well as all spectators away
•
from the plane of rotation of the turning propeller.
Keep loose clothing and objects such as pencils or
•
screwdrivers that may fall out of shirt or jacket pockets
away from the prop.
9
Page 10
A
BCDEFG
1
2
3
4
5
6
7
8
9
10
11
12
Flight Time
(.10ths)
FORMULAS
= B/A = D x 0.8 = E/C = (B/100)/(A/60)
Recharge
Capacity mAh/minute
Battery
Capacity
Target Capacity
to Use In Flight
Recommended
Flight Time
Average In-Flight
Current
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18
19
20
21
22
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26
27
28
29
30
10
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