9.  Revolution Mix Setting 
Revolution mixing (
REVO
) uses the tail 
rotor to suppress the torque reaction of the 
main rotor due to changes in collective pitch.  
It is disabled whenever Idle-Up or Throttle 
Hold are activated.   
REVO 
may be set on either side of the stick 
(note the letters 
R/U
 and 
L/D
 displayed).  
Adjust 
REVO
 mixing for both travel directions 
as described in the trimming instructions 
following. 
 
Idle-Up & Throttle Hold 
Your system is already programmed to 
provide Idle-up [
IDLE
] and Throttle Hold 
[
HOLD
].  Idle-up is typically used for 540° 
stall turns, looping, and rolling stall turns; 
throttle hold is used to disengage the throttle 
during autorotations.  After activation, these 
functions are switched on as follows: 
• Idle-up [
IDLE
] –
 ON 
at Switch E’s forward 
position.  Idle-up also turns on Rudder offset 
function 
• Throttle Hold [
HOLD
] –
 ON 
at Switch D 
forward position. 
When these two switches are OFF, the 
radio is set up for regular hovering and flight. 
As these functions are switched on or off, 
HOLD 
has highest priority, followed by 
IDLE
.  
Regular settings are when both are off. 
10.  Rudder Offset Setting 
The Rudder Offset menu [
R-OF
] is only 
turned on when Idle-up has been activated.  
Rudder trim may be offset to different 
positions so that the model flies straight ahead 
during normal flight.  Recommended settings 
are small, from 6% to 10% or as needed. 
 
11.  Throttle Hold Setting 
Throttle hold (
HOLD
) commands the 
throttle to a preset position near idle and 
disconnects it from pitch when activated.  
Move to the 
HOLD 
menu and activate by 
pressing the (+) key, then move switch D to 
the forward position.  Set the hold position to 
maintain engine speed near idle without 
engaging the main rotor clutch. 
 
12.  Dual Rate Settings 
If you find that your aileron and elevator 
controls are too sensitive, you may set dual 
rates to reduce them.  Use the dual rate (
D/R
) 
window to adjust them to the desired amount 
of response when the switch is flipped. 
 
If you want both dual rate circuits to be 
controlled by a single switch, use mode 2 in 
the 
DRSW 
menu.  Otherwise, leave it at mode 
1. 
 
12.  Trim Memory 
Once your chopper is flying the way you 
like, memorize the trim positions with the 
TMEM 
window. 
 
This concludes the example setup 
procedure for helicopters.  Be sure to browse 
through the pages following this example to 
see the details about the menus for helicopters. 
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