FUTABA cgy750 Instruction Manual page 71

(3) Gear ratio [default: 8.00, range: 1 ~ 30]
Input the main rotor gear ratio by pushing the
data + or-key.
Notes:
speed and actual engine speed will be differ-
ent.
copter instruction manual. If the helicopter in-
struction manual does not give the gear ratio,
calculate the gear ratio as follows:
Engine
pinion gear
N2
*HDU UDWLR
whole number.
G
OVERNOR
11
71
B S
ASIC ETTING
Rotor
main gear
N1
-