HITEC OPTIC 6 - Helicopter Flight Trimming Chart

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Helico
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This procedure assumes helicopter is trimmed for hovering. Trimming must be done in near-calm conditions.
Repeat
tests several times before making adjustments. If any changes are made,
go back over the previous steps and verify, or further adjust as necessary.
To test for... Test Procedure Observations Ad
j
ustments
1. RVMX mixing
- Up settings
(
Part 1
)
Fly the model straight and
level
into the wind at 100 ft
altitude,
lower pitch to 0 °
Observe rotation as helicopter descends
A
. No rotation
B. Model rotates counterclockwise
C. Model rotates clockwise
A
. None
B. Add right rudder trim
C.
Add left rudder trim
2.
RVMX mixing
- Up settings
(
Part 2
)
Bring the helicopter into hover,
add
full pitch and ascend 75 ft
Observe rotation as helicopter ascends
A
. No rotation
B. Model rotates counterclockwise
C. Model rotates clockwise
A
. None
B. Increase UP RVMX mix
C. Decrease UP RVMX mix
3.
RVMX Down
mixing
settings
Begin Down RVMX mixing
with
same number as UP
mix.
From inverted flight
(top of loop, or mid-point of roll,
or
inverted part of split-S), add
full negative pitch
Observe rotation as helicopter ascends
A
. No rotation
B. Model rotates clockwise
C. Model rotates counterclockwise
A
. No adjustment
B.
Increase Down RVMX mix
C. Decrease Down RVMX mix
A
djusting Hovering Pitch and Hovering Throttle
RPM Stick Primary Corrective Action
High Below 1/2 Decrease hovering throttle
Low
Below 1/2 Decrease hovering pitch
Perfect Below 1/2 Decrease hovering throttle, decrease hovering pitch
High
1/2 stick Increase hovering pitch, decrease hovering throttle
Low
1/2 stick Decrease hovering pitch, increase hovering throttle
Perfect
1/2 stick Don't touch a thing!
High Above 1/2 Increase hovering pitch
Low Above 1/2 Increase hovering throttle
Perfect Above 1/2 Increase hovering pitch, increase hovering throttle
Want more Keep 1/2 Decrease hovering pitch, then increase hovering throttle
Want
less Keep 1/2 Increase hovering pitch, then decrease hovering throttle
Helico
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