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Paul'os · 04-08-2014, 04:35 PM

Hi people,
I have a 550 pro which I'm having a bit of trouble with. It pitches up and down quite drastically in forward flight when collective is added. My transmitter gains are at 60, all the other settings are back to stock. I also get a head wobble/shake when in fast forward flights when rolling, and the rolls are corkscrewing. I have tried to adjust the ff mix as per the vids but the machine does not pitch up or down on full collective climb outs.? Ive tried increasing the ff mix just to experiment and it made things worse. Also I've done all the linkage compensations. It just doesn't feel right.

I have a 700pro with a 750 on which flies well.

Any help is appreciated.

Cheers Paul

Baane · 04-15-2014, 09:17 PM

The machine does not pitch up at all if hovering and pitch pumping?

FF compensates for torque, so a pitch pump should be enough to tell if that is set right.

Paul'os · 04-16-2014, 07:22 AM

No it didn't pitch up or down during pitch pumps. I've taken the gyro off the model and am now trying a different one. But thank you for your reply.

ve3ygl · 05-20-2014, 10:43 PM

Same here. My N7 with CGY750 is flying good with default setting. But my NX4 has the same situation like yours 550. I put H:30%, L:0% on ELE. Comp. Increase radio ELE Gain to 90. And it is flying good now. No more pitch up when full high pitch to climb, even fly against the wind.

Gary

Jim Hansen · 05-21-2014, 10:05 PM

My 450 Pro does the same if in ff fight or clime out. This all happen when I went from 1.3 to 1.4 I read that the angular rate is reset. So I will have to try tomorrow and reduce from 300 to??

atkinson · 05-26-2014, 10:02 PM

Same here. My N7 with CGY750 is flying good with default setting. But my NX4 has the same situation like yours 550. I put H:30%, L:0% on ELE. Comp. Increase radio ELE Gain to 90. And it is flying good now. No more pitch up when full high pitch to climb, even fly against the wind

Good fix. I had the same problem with my NX4. That took care of the unwanted elevator pull.

Jim Hansen · 05-26-2014, 10:07 PM

Thanks for the info. when i put the NX4 back together

Paul'os · 05-29-2014, 05:58 AM

Thanks for the info.

Will have another go when I put the cgy back on my 550.

04-08-2014, 04:35 PM	#1 (permalink)
Paul'os Registered Users Join Date: Mar 2011	Piching up/down in fff Hi people, I have a 550 pro which I'm having a bit of trouble with. It pitches up and down quite drastically in forward flight when collective is added. My transmitter gains are at 60, all the other settings are back to stock. I also get a head wobble/shake when in fast forward flights when rolling, and the rolls are corkscrewing. I have tried to adjust the ff mix as per the vids but the machine does not pitch up or down on full collective climb outs.? Ive tried increasing the ff mix just to experiment and it made things worse. Also I've done all the linkage compensations. It just doesn't feel right. I have a 700pro with a 750 on which flies well. Any help is appreciated. Cheers Paul __________________ Lots of Aligns Lots of Cgy750's Futaba T8FG 14SG 18SZ and some planks ;-)

04-15-2014, 09:17 PM	#2 (permalink)
Baane Registered Users Join Date: Apr 2013	The machine does not pitch up at all if hovering and pitch pumping? FF compensates for torque, so a pitch pump should be enough to tell if that is set right. __________________ Goblin 630, 500, Raptor 700

04-16-2014, 07:22 AM	#3 (permalink)
Paul'os Registered Users Thread Starter Join Date: Mar 2011	No it didn't pitch up or down during pitch pumps. I've taken the gyro off the model and am now trying a different one. But thank you for your reply. __________________ Lots of Aligns Lots of Cgy750's Futaba T8FG 14SG 18SZ and some planks ;-)

05-29-2014, 05:58 AM	#8 (permalink)
Paul'os Registered Users Thread Starter Join Date: Mar 2011	Thanks for the info. Will have another go when I put the cgy back on my 550. __________________ Lots of Aligns Lots of Cgy750's Futaba T8FG 14SG 18SZ and some planks ;-)

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05-20-2014, 10:43 PM	#4 (permalink)
ve3ygl Registered Users Join Date: May 2011	Same here. My N7 with CGY750 is flying good with default setting. But my NX4 has the same situation like yours 550. I put H:30%, L:0% on ELE. Comp. Increase radio ELE Gain to 90. And it is flying good now. No more pitch up when full high pitch to climb, even fly against the wind. Gary

05-21-2014, 10:05 PM	#5 (permalink)
Jim Hansen Registered Users Join Date: Oct 2009 Location: Vancouver, Wa	My 450 Pro does the same if in ff fight or clime out. This all happen when I went from 1.3 to 1.4 I read that the angular rate is reset. So I will have to try tomorrow and reduce from 300 to??

05-26-2014, 10:02 PM	#6 (permalink)
atkinson Registered Users Join Date: Oct 2009	Same here. My N7 with CGY750 is flying good with default setting. But my NX4 has the same situation like yours 550. I put H:30%, L:0% on ELE. Comp. Increase radio ELE Gain to 90. And it is flying good now. No more pitch up when full high pitch to climb, even fly against the wind Good fix. I had the same problem with my NX4. That took care of the unwanted elevator pull.

05-26-2014, 10:07 PM	#7 (permalink)
Jim Hansen Registered Users Join Date: Oct 2009 Location: Vancouver, Wa	Thanks for the info. when i put the NX4 back together

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