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Steveo6971 · 08-26-2015, 11:41 AM

Hi
Firstly many thanks with the help so far!!.. finally got my first 250 kind of flying
Does anyone have any ideas as to why the tail seems to be bouncing pretty hard up and down just after the heli lifts off.. I turned the gain down to 32 and also increased up to 60+ but neither worked could vibration in the beastx cause this?? If not I'm wondering if it's mechanical...

Any help would be grateful..

Steve Joblin · 08-26-2015, 12:02 PM

"I" Gain ( the "I" in PID) is what usually needs to be adjusted to reduce bounce. It sounds like you are changing the "P" gain. Adjust "P" gain for "wagging" or "bobbing"; adjust "I" gain for bounciness or overshooting.

ALLsteven · 08-26-2015, 01:46 PM

When you say the tail bounces up and down do you mean the whole heli is oscillating front to back? Or is the tail actually bouncing left or right after a hard stop?

nflanagin · 08-26-2015, 05:42 PM

Beastx forum is probably a better place. On my larger X5 with beastx I raise the gyro gain to oscillating back and forth, drop it and then try upping Parameter D. Then, with bounce back I play with dial 3.

Are you using a governor too? If so, turn it off until you have the tail dialed in.

08-26-2015, 11:41 AM	#1 (permalink)
Steveo6971 Registered Users Join Date: Aug 2013	Bouncy tail..!!!WTF Hi Firstly many thanks with the help so far!!.. finally got my first 250 kind of flying Does anyone have any ideas as to why the tail seems to be bouncing pretty hard up and down just after the heli lifts off.. I turned the gain down to 32 and also increased up to 60+ but neither worked could vibration in the beastx cause this?? If not I'm wondering if it's mechanical... Any help would be grateful..

08-26-2015, 12:02 PM	#2 (permalink)
Steve Joblin Registered Users My HF Map location Join Date: Aug 2008	"I" Gain ( the "I" in PID) is what usually needs to be adjusted to reduce bounce. It sounds like you are changing the "P" gain. Adjust "P" gain for "wagging" or "bobbing"; adjust "I" gain for bounciness or overshooting. __________________ Walkera 4#3B, 4G6 Align 250SE, Gaui 200 Tarot 450PRO Align 550L Dominator

08-26-2015, 01:46 PM	#3 (permalink)
ALLsteven Registered Users Join Date: Jul 2015	When you say the tail bounces up and down do you mean the whole heli is oscillating front to back? Or is the tail actually bouncing left or right after a hard stop? __________________ Lynx 300x; Align 450 pro FBL; Align 450 pro flybar; Align 250SE flybar; 200qx; 350qx3; and a Lynx upgraded 180cfx Lynx field rep team pilot

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08-26-2015, 05:42 PM	#4 (permalink)
nflanagin Registered Users Join Date: Oct 2010	Beastx forum is probably a better place. On my larger X5 with beastx I raise the gyro gain to oscillating back and forth, drop it and then try upping Parameter D. Then, with bounce back I play with dial 3. Are you using a governor too? If so, turn it off until you have the tail dialed in.

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