Hobby King Decathlon User manual

OPERATING MANUAL

CATALOG
★Introduction
★Safety precautions!
★Charge Mode and Warning
★Safety Instruction of Ni-MH Battery
★Assembling steps for Decathlon
★Speed controller operation
★Spare parts list
★Center of Gravity Check
★Trouble shooting
03
06
07
04
08
12
14
13
14

Main Technology Parameter
Standard version
Safety precautions
1、Do not fly outside in the thunderstorm, rainy and strong winds.
2、Do not fly nearby the airport, railway, road, power lines.
3、Do not fly where there are crowds of people.
4、Do not fly where the same frequency model plane is flying or there are other electric
waves nearby.
5、Make sure the model plane and control system are under normal condition before flying.
6、Use our company's quality accessories to replace the broken one.
-3-
Thank you for purchasing the R/C model Decathlon. To get it to perform perfectly,
please read this introduction thoroughly before operating.
Introduction
Wingspan：970mm
Length：770mm
Flight weight：630g
Motor Type：400
Battery：Ni-MH 9.6V1000MAH
Radio Control： 4Ch
Frequency Modulation：FM
Included parts：
Fuselage、Main wing、Stabilizer、Vertical tail wing、Main landing gear、Battery、
Charger、Accessory、Propeller、Manual、Spinner

1) Do not fly in Strong wind or bad weather.
2) Never fly the model in crowded areas, where there are lots of people, automobiles
on the road and power lines over head. Also not to fly around the airport. Please make
yourself enough room for the flying and operating, as the plane can travel at high rates
of speed. Remember you are responsible for the safety of others.
Please read this section until you fully understand!
3) Children under the age of 12,
should have an adult guide. Not
recommend for the children under
the age of 14.
Safety precautions!
-4-
4) Pleas do not fly in the same area
with similar frequency ,or that can
cause crash.
5) Never leave the charger in wet conditions.
Novice Novice Expert

6) The Decathlon is made from PA and polythene
w h i c h a r e t i n d e r. W h e n i t m e e t s t h e h e a t ,
transfiguration can easily happen, so you must
keep your Decathlon away from heat.
7) Do not attempt to catch the Decathlon while it
is flying.
8) Never leave this system unatten ded ar ound children with battery in the unit, as
injury can be cause d due to children turni ng on the transmitter or the plane.
9) Du ri ng th e pre p ar ation fo r th e f l ig ht , pl e as e re m em be r to tur n on the tra n smitt e r
before connecting the battery pack.
10) Close the throttle on the transmitter before connecting battery otherwise the motor
may operate. The turning propeller may cause injury.
-5-

-6-
Charge the power battery with outfit charger in 3 to 4 hours. Battery will be a little warm after
charging. In order to avoid battery damage or fire insurance, do not charge the battery overtime.
Battery in charging should be put away from tinder and under supervision to make sure safety.
★ Ni-mh battery Charger
Charge Mode and Warning
Statement
1、The R/C plane is not a toy, it is suitable for the experienced operator. You must ensure it
operated safely and do not harm others.
2、Installation must follow the instruction book. Make sure you keep your body (head, finger,
etc) away from the propeller at all times. Otherwise it can cause injury you or damage the model.
3、Customer must be responsible for the proper operation of the plane. Our company and
dealer won't pay for any loss owing to the inappropriate operation.

CAUTION
Safety Instruction of Ni-MH Battery
-7-
1. Never charge the battery at more than 1 amp.
2. Never discharge the battery at more than 5c and never take the voltage lower than 9v as
this will damage the battery.
3. For full flight time to be achieved please cycle the cells through three flights.
. 4 Never charge the battery on a carpet floor, this can cause a fire!
01. Batteries should be charged prior to use.
02. When using a new battery for the first time or after long term storage, please fully charge the
battery before use.
03. Use the correct charger for Ni-Cd or Ni-MH batteries.
04 .Do not reverse charge batteries.
05. Do not short circuit batteries, permanent damage to batteries may result.
06. Do not incinerate or mutilate batteries, may burst or release toxic material.
07. Do not solder directly to cells or batteries.
08. Do not subject batteries to adverse condition such as extreme temperature, deep cycling
and excessive Overcharge/overdischarge.
09. Store batteries in a cool dry place.
10. Do not mix up this battery with other brands such as alkaline Zinc battery。
11. Do not mix new batteries in use with semi-used batteries, overdischarge may occur.
12. Avoid batteries being used in an airtight compartment. Ventilation should be provided inside
the battery compartment; otherwise batteries may generate hydrogen gas, which could
cause an explosion if exposed to an ignition source.
13. When connecting a battery pack to a charger, ensure correct polarity.
14. If find any noise, excessive temperature or leakage from a battery, please stop its use.
15. When the battery is hot, please do not touch it and handle it, until it has cooled down.
16. Do not remove the outer sleeve from a battery pack nor cut into its housing.
17. When find battery power down during use, please switch off the device to avoid
overdischarge.
18. When not using a battery, disconnect it from the device.
19. Unplug a battery by holding the connector itself and not by pulling at its cord.
20. After use, if the battery is hot, before recharging it, allow it to cool in a well-ventilated place
out of direct sunlight.
21. Never put a battery into water or seawater.
22. During long term storage, battery should be charged and discharged once every half a year.
23. Do not attempt to take batteries apart or subject them to pressure or impact. Heat may be
generated or fire may result. The alkaline electrolyte is harmful to eyes and skin, and it may
damage clothing upon contact.
24. Keep away from children. If swallowed, contact a physician at once.

Assembling steps for Decathlon
-8-
1、Put the horizontal stab on the designated place of fuselage, fix it with screws as shown
in the following pictures.
2、 Put the vertical stab on the designated place of the fuselage, fix it with screws as shown
in the following pictures.
3、Fix tail wheel and linkage plastics of rudder with screws as shown in the following pictures.
￠1.7X7XD3MM
￠1.7X10XD3MM
………… 3
………… 1

5.Insert main landing gear set as shown in the following picture.
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4、Fasten the clevis as shown in the following pictures.
￠1.7X8XD3MM
………… 2

8、Use the plastic screw to fasten the main wing to the fuselage as shown in the following
picture.
7、Insert main wing into the fuselage horizontally as shown in the following picture.
6、 Plug cord of servo in the wing into the 1st ch of Receiver as shown in the following
picture.
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￠4X30MM
……… 2

10、Make sure the back switch on the transmitter is off and that batteries are properly
arranged. Before turning on, please position the throttle on idle.
11、Plug the well-charged battery into the connector in the fuselage, after battery are
well arranged, close the battery compartment cover.
9、Put on the wing support as shown in the following pictures.
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￠1.4X6XD2.5MM
………… 4

12、Test to insure normal functioning of the joystick. While testing the power, firmly
secure the airplane in place so that it will not move. Be certain that nobody or things come
near the spinning propeller.
-12-
When the battery voltage is lower than safety voltage, the speed controller can auto-cut the
power to the motor but still keep supplying power for receiver & servo.
Speed controller operation
Turn on the transmitter first, then connect battery.
Keep the throttle stick at the lowest level for at least one second, then you are able to open the
throttle and the motor will respond. This is a safety feature. If the motor does not work, please reset
the controller by disconnecting the battery and repeating steps ① and ②.
①
②
③

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Spare parts list
No:5G011
Main wing set
No:54061
Propeller
No:5G021
Tail wing set
No:3A021
Motor with gear box
No:5G071
Main wing holder
No:5G031
Fuselage
No:54071
Propeller Spinner
No:5G041
Landing gear
Item:54081
Propeller Adapter
No:3F011
Ni-MH battery
No:36031
Ni-MH battery Charger

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Phenomenon Problem
How to solve
Motor does
not run
1.Battery in plane is not fully charged.
2.Did not push the start switch
on the fuselage.
3.The battery in the transmitter
is not full.
4.The circuit in the model has been
damaged due to crash.
1.Charge the battery.
2.Push the start switch on
the fuselage.
3.Install new dry cells.
4.Contact the distributor
Cannot fly
straight
1.The rudder is not centred.
2.The main wing has not been
installed on the fuselage center.
1.Adjust the rudder trim on
the transmitter.
2.Reinstall the main wing.
Cannot climb
1.The battery is not fully charged.
2.The elevator is angled downward.
1.Charge the battery.
2.Adjust the elevator trim on
the transmitter.
Control distance
is limited
1.The batteries in the transmitter
are running flat.
2.The antenna of transmitter
has not been completely
extended.
1.Install new dry cells.
2.Completely extend the
antenna of the transmitter.
Troub le shoo ting
Center of Gravity Check
1 4
9 / inch~10 / inch
2 5
Please check the CG before heading to the
flying fileld. The center of gravity for your
Decathlon should fall within the range as
indicated by the arrows. For your initial flights,
we suggest that you balance the model toward
the front fo the wing. After you become more
familiar with the airplane, you can move the
CG more aft.However,under no circumstances
should the CG fall behind(toward the rudder)
the rear mark.If necessary, adjust the CG by
moving your receiver or adding weight to the
nose or tail of the airplane.
2009.10
There will be no notice of changes and improvements made to this manual
It is forbidden to copy the content of any part of this manual without written permission.