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Great Planes Giant Aeromaster Kit - GPMA0502 User Manual

Page 51

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TRIM FEATURE

CONTROL
CENTERING

CONTROL
THROWS

ENGINE

THRUST
ANGLE'

CENTER OF
GRAVITY

LONGITUDINAL
BALANCE

YAW

2

LATERAL
BALANCE

AILERON

RIGGING

MANEUVERS

Fly general circles and
random maneuvers

Random maneuvers

From straight flight

chop throttle quickly

From level flight roll to

45-degree bank and

neutralize controls

Into wind, do open loops,
using only elevator
Repeat tests doing

outside loops from

inverted entry

Into wind, do tight inside
loops

With wings level, pull
to vertical climb and

neutralize controls

OBSERVATIONS

Try for hands off straight
and level flight

A Too sensitive, jerky

controls

B Not sufficient control

A Aircraft continues level

path for short distance

B Plane pitches nose up

C Plane pitches nose

down

A Continues in bank for

moderate distance

B Nose pitches up

C Nose drops

A Wings are level

throughout

B Yaws to right in both

inside and outside
loops

C Yaws to left in both

inside and outside
loops

D Yaws right on insides,

and left on outside
loops

E Yaws left in insides and

right on outside loops

A Wings are level and

plane falls to either side
randomly

B Falls off to left in loops

Worsens as loops
tighten

C Falls off to right in

loops Worsens as loops

tighten

same path

inside loop

C Nose tends to go to

outside loop

CORRECTIONS

Readjust linkages so that

Tx trims are centered

If A, change linkages to

reduce throws

If B, increase throws

If A, trim is okay

If B, decrease downthrust
If C, increase downthrust

If A, trim is good

If B, add nose weight
If C, remove nose weight

If A, trim is correct

If B, add left rudder trim

If C, add right rudder trim

If D, add left aileron trim

If E, add right aileron trim

If A, trim is correct

If B, add weight to right

wing tip

If C, add weight to left

wing tip

If A, trim is correct

If B raise both ailerons

very slightly

If C, lower both ailerons

very slightly

51

If B, add weight to right

wing tip

If C, add weight to left

wing tip

AILERON

RIGGING

With wings level, pull
to vertical climb and

neutralize controls

A Climb contini

same path

B Nose tends to

ies along

goto

If A, trim is correct

If B raise both ailerons

1 Engine thrust angle and C G interact Check both

2 Yaw and lateral balance produce similar symptoms Note that fin may be crooked Right and left references are from the plane's vantage point