Futaba 9CPS - Manual (Page 97)

GOVERNORS:
What is a governor? A governor is made up of a set of sensors which read the RPM of the helicopter’s head, and a control
unit that automatically adjusts the throttle setting to maintain a constant head speed regardless of changes in pitch of blades,
weather conditions, etc. Governors are extremely popular in competition helicopters due to the consistency provided.
How does it help in helicopter setup? The governor eliminates the need to spend large amounts of time setting up throttle
curves, as it automatically adjusts the engine’s RPM to maintain the desired head speed.
GOVERNOR: The Governor mixing function is used to adjust the GV-1 (Governor) speed settings (rS1, rS2, rS3) from the transmitter.
(If you are using a different governor, follow the manufacturer's instructions.)
Adjustability:
• On/off may be separate from speed switching by plugging governor on/off into ch8 and changing CUT-CH setting.
• If using separate on/off, switch assignment is totally adjustable. Be careful not to assign governor off to a condition
switch if you want the governor to function in that condition.
GV-1 connections
Magnetic sensor
Throttle servo
Control amp
Mixture servo
Connected only when
fuel mixture function
used.
Throttle
channel
Speed setting channel
Connected when speed set from
transmitter
Governor ON/OFF / Mixture trim channel
Connected when the governor is turned on and off
from transmitter and when mixture trim function is
used, or when mixture curve data is sent from transmit-
ter to governor
Receiver
9
7