ParkZone T-28 Trojan PNP PKZ4475 Data Sheet

Problem

Possible Cause

Solution

Aircraft will not respond 
to throttle but responds to 
other controls

Throttle is not at idle and/or throttle trim is too high

Reset controls with throttle stick and throttle trim 
at lowest setting

Throttle servo travel is lower than 100%

Make sure throttle servo travel is 100% or greater

Throttle channel is reversed

Reverse throttle channel on transmitter

Extra propeller noise or 
extra vibration

Damaged propeller and spinner, collet or motor

Replace damaged parts

Propeller is out of balance

Balance or replace propeller

Reduced fl ight time or air-
craft underpowered

Flight battery charge is low

Completely recharge fl ight battery

Propeller is installed backwards

Install propeller with numbers facing forward

Flight battery is damaged

Replace fl ight battery and follow fl ight battery instructions

Flight conditions may be too cold

Make sure battery is warm before use

Aircraft will not Bind (dur-
ing binding) to transmitter

Transmitter is too near aircraft during binding process

Move powered transmitter a few feet from aircraft, 
disconnect and reconnect fl ight battery to aircraft

Aircraft or transmitter is too close to large metal object

Move aircraft or transmitter away from large metal object

Bind plug is not installed correctly in bind port

Install bind plug in bind port and bind aircraft to transmitter

Flight battery/Transmitter battery charge is too low

Replace/recharge batteries

Aircraft will not link (after 
binding) to transmitter

Transmitter is too near aircraft during linking process

Move powered transmitter a few feet from aircraft, 
disconnect and reconnect fl ight battery to aircraft

Aircraft or transmitter is too close to large metal object

Move aircraft or transmitter away from large metal object

Bind plug is left installed in bind port

Rebind transmitter to aircraft and remove bind plug before 
cycling power

Aircraft bound to different model memory (ModelMatch™ radios 
only)

Select correct model memory on transmitter

Flight battery/Transmitter battery charge is too low

Replace/recharge batteries

Transmitter may have been bound using different DSM Protocol

Bind aircraft to transmitter

Control surface does not 
move

Control surface, control horn, linkage or servo damage

Replace or repair damaged parts and adjust controls

Wire is damaged or connections are loose

Do a check of wires and connections, connect 
or replace as needed

Transmitter is not bound correctly or the incorrect model 
was selected

Re-bind or select correct model in transmitter

BEC (Battery Elimination Circuit) of the ESC is damaged

Replace ESC

Controls reversed

Transmitter settings are reversed

Do the Control Direction Test and adjust controls on 
transmitter appropriately

Motor power pulses then 
motor loses power

ESC uses default soft Low Voltage Cutoff (LVC)

Recharge fl ight battery or replace battery 
that is no longer performing

Weather conditions might be too cold

Postpone flight until weather is warmer

Battery is old, worn out, or damaged

Replace battery

Battery C rating might be too small

Use recommended battery