Model Tech Yak 54 User Manual download pdf (Page 6)

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chance of them opening during flight.

If your radio transmitter is equipped with dual rate switches, double-check that they are on the low-rate setting for your

first few flights.

Check to ensure that all of the control surfaces are moving the proper amount in both low and high rate settings.

Motor: The motor should run smoothly at all power settings with smooth transition from low to high RPM. Do

not fly with an unreliable motor. Completely read motor instructions before flying.

Flight Controls: Ensure

all flight controls are free from binding and are cantered. Check all hinges are

tight and will not pull out. Control linkages must be rigid and tight and have no slop. Confirm proper

direction of ailerons, rudder and elevator. Experienced flyers have lost airplanes due to reversed ailerons.

Right roll is right aileron up and left aileron down. Left roll is left aileron up and right aileron down.

Motor: The motor should run smoothly at all power settings with smooth transition from low to high RPM. Do

not fly with an unreliable motor. Completely read motor instructions before flying.

Flight Controls: Ensure

all flight controls are free from binding and are cantered. Check all hinges are

tight and will not pull out. Control linkages must be rigid and tight and have no slop. Confirm proper

direction of ailerons, rudder and elevator. Experienced flyers have lost airplanes due to reversed ailerons.

Right roll is right aileron up and left aileron down. Left roll is left aileron up and right aileron down.

SETTING THE CONTROL THROWS

We recommend initially setting up the airplane using the Test Flying/Sport Flying control throws. These control throws

are suggested for initial test flying and general sport flying because they will allow the airplane to fly smoother and

make it easier to control. For 3D flying, use the 3D Flying control throws, but only AFTER you've become very familiar

with the flight characteristics of the airplane using the Test Flying/Sport Flying control throws and only after setting up

the airplane as described in this section.

Centre of Gravity

: Check CG is set properly.

Turn the airplane upside down, place your fingers on the wing at the balance point, and carefully lift the airplane. If the

nose of the airplane drops, the airplane is nose heavy. To correct this, move the battery pack and/or receiver back far

enough to bring the airplane into balance. If the tail of the airplane drops, the airplane is tail heavy. To correct this, move

the battery pack and/or receiver forward far enough to bring the airplane into balance. Because of the limited space to

move the receiver and/or battery fore and aft, you may also need to add weight to the tail or the nose to balance the

airplane. When balanced correctly, the airplane should sit level

or slightly nose down when you lift it up with your fingers

Balance the airplane with the fuel tank empty.

PRE FLIGHT CHECKS

Batteries: Make sure Transmitter and receiver/motor batteries are fully charged before each flight. Also

double check before each take off.

Fasteners: Check all motor screws, prop nuts, servo screws, control horns, wheel collars, and clevis

keepers are tight and secure.

Radio: Check trims set to neutral and controls cantered. Check rate and condition switches set properly.

Check the receiver antenna is fully extended.

SAFETY PROCEDURES BEFORE FLIGHT

Before each flight check your transmitter and flight pack battery for proper charge levels

to make sure you attain maximum flight time and safety. Always switch on your

transmitter first and move the right hand throttle stick to the low throttle position to avoid

accidentally starting the motor. Then only connect the plane battery to the aircraft when

you are going to fly. Match the red and black wires up correctly. When you have finished

the flight, unplug the LiPo flight battery before turning off the transmitter. If the plane

battery is connected without the transmitter being on, it can pick up signals from other

radio transmitters and cause your plane to respond unintentionally, controls will start to

move as well as the motor revving up! This is not a malfunction of the system, but a standard behaviour for

all radio controlled models.

Before turning on your transmitter, make sure no other people are flying other aircraft on the same frequency

you are using. This will cause interference and result in crashing the other pilot’s aircraft. The frequency of

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Model Tech Yak 54 User Manual Page 6

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