Futaba GY240 Gyro Help Needed
07-19-2004, 12:45 PM
#1
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Futaba GY240 Gyro Help Needed
I cannot seem to get my Futaba GY240 gryo initialized correctly. Here is my setup:
Hummingbird v.II
stock motor
stock main rotor
stock 700mAh 7 cell NiMH battery
DD tail motor
CC Pixie 20P main ESC
CC Pixie 7P tail ESC
Futaba GY240 Gyro
As the manual instructs, turn AVCS mode off and get the rudder trim set to a
steady hover (i.e. no tail movement). The problem is that I cannot set the
trim low enough to stop the heli from spinning clockwise. I can get it to
hover nicely but I have to keep the rudder left about 1/4 of the way.
The only way I can get it to trim properly is when I initialize the gyro with
the rudder almost all the way right.
Does anyone else have this configuration ? Am I doing something wrong or have
a bad component ?
Hummingbird v.II
stock motor
stock main rotor
stock 700mAh 7 cell NiMH battery
DD tail motor
CC Pixie 20P main ESC
CC Pixie 7P tail ESC
Futaba GY240 Gyro
As the manual instructs, turn AVCS mode off and get the rudder trim set to a
steady hover (i.e. no tail movement). The problem is that I cannot set the
trim low enough to stop the heli from spinning clockwise. I can get it to
hover nicely but I have to keep the rudder left about 1/4 of the way.
The only way I can get it to trim properly is when I initialize the gyro with
the rudder almost all the way right.
Does anyone else have this configuration ? Am I doing something wrong or have
a bad component ?
07-19-2004, 04:44 PM
#2
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RE: Futaba GY240 Gyro Help Needed
Does your radio have sub-trim? If so, you can change the sub-trim to a greater extreme than the regular trim... Get it set that way and keep your regular trim in the center... until after you get close.
You're lucky... Everybody else is suffering from their heli spinning counter-clockwise. Too much tail compensation is usually easier to get rid of than too little.
-Mark
You're lucky... Everybody else is suffering from their heli spinning counter-clockwise. Too much tail compensation is usually easier to get rid of than too little.
-Mark
07-19-2004, 05:41 PM
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RE: Futaba GY240 Gyro Help Needed
Ok then... Do this:
Turn on HH mode on the gyro. Turn on the radio, leave the trim and the rudder stick in the center. Turn on the heli. (don't move for a few seconds.)
After a few seconds, Do full left (or right) rudder to activate your tail motor esc.
Done.. Go fly.
It shouldn't be harder than this. I don't have a gy240, but this is how I would try it first. I have to imagine that the gyro self-programs center-stick and stationary... like other HH gyros.
-Mark
Turn on HH mode on the gyro. Turn on the radio, leave the trim and the rudder stick in the center. Turn on the heli. (don't move for a few seconds.)
After a few seconds, Do full left (or right) rudder to activate your tail motor esc.
Done.. Go fly.
It shouldn't be harder than this. I don't have a gy240, but this is how I would try it first. I have to imagine that the gyro self-programs center-stick and stationary... like other HH gyros.
-Mark
07-20-2004, 10:34 AM
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RE: Futaba GY240 Gyro Help Needed
ORIGINAL: marked23
Ok then... Do this:
Turn on HH mode on the gyro. Turn on the radio, leave the trim and the rudder stick in the center. Turn on the heli. (don't move for a few seconds.)
After a few seconds, Do full left (or right) rudder to activate your tail motor esc.
Done.. Go fly.
It shouldn't be harder than this. I don't have a gy240, but this is how I would try it first. I have to imagine that the gyro self-programs center-stick and stationary... like other HH gyros.
-Mark
Ok then... Do this:
Turn on HH mode on the gyro. Turn on the radio, leave the trim and the rudder stick in the center. Turn on the heli. (don't move for a few seconds.)
After a few seconds, Do full left (or right) rudder to activate your tail motor esc.
Done.. Go fly.
It shouldn't be harder than this. I don't have a gy240, but this is how I would try it first. I have to imagine that the gyro self-programs center-stick and stationary... like other HH gyros.
-Mark
Thank you everyone for your help.
