Operation Manual

Sailplane Section
BUTTERFLY TRIM Mix (BYE)-4-S/5-S
Butterfly trim mixing uses elevator motion to
correct any change in model attitude when butter-
fly is activated. The CH6 volume up side and down
side correction rates can be set independently.
The correction neutral position can be offset to
a point different from the butterfly neutral posi-
tion, but it should be matched to the butterfly
mixing offset point. Butterfly trim mixing can be
turned on and off during flight by setting a switch.
5-S
4-S
Setting Up Butterfly Trim Mixing
Activation of command
In the Condition Menu, press the BYE key to get the
BFY TO ELE menu as shown below.
Mode setting
Offset Setting
Correction
Rate
Setting
To On/Off Switch
Setting Menu
Return To
Condition Menu
Mode Selection Keys
Mode Setting
Use the A key to activate mode setting, then
press the
ACT or INH keys ( F and G) to activate
or inhibit butterfly trim mixing.
Offsetting the Mixing Neutral Location
Press the B key. Then set the butterfly control to the
desired offset position (usually where it begins working)
and press the
SFT F key.
Down Side Correction Rate Setting
Press the C key and set the
rate with the numeric
keys
E to M . The setting range may vary from —100 to
+100%
and the initial value is +50%. If you use BFY on
throttle as described previously, this may not do anything.
Up Side Correction Rate Setting
Press the D key and set the rate with the numeric
keys
E to M . The setting range may vary from —100 to
+100% and the initial value is +50%.
ON/OFF Switch Setting
An ON/OFF switch is not defined initially, so the
mixing will be on all the time. To define one, display the
switch setting screen by pressing the SWT P key. Use
the keys to choose the switch and ON direction you want.
For a description of the switch setting method, see page
37.
Sailplane Section, Page 142