trex 250 shudder in FFF

Rattler888 · 08-19-2012, 09:04 PM

Hi,

New trex 250pro dfc with ar7200bx. I have 100% throttle and ATV, pitch at 12 dgerees, gyro is at 60.5% (on dx6i), and the microbeast performance options are all at defaults. Using 3M 4011 tape.

I threw it around as hard as I could for 3 batteries, and it was all fine, except when I flew forward at max speed, it gave one big tail shudder. This also happened once during a full power inverted climbout.

Any ideas what it might be? It didn't look like a blowout, more like a big shake. Does it sound like vibes or a setting? As I type this I'm thinking maybe it's because my gyro tape is not completely flat (has a bit of plastic under one corner because I mounted it on the side of the 250)

Thanks

desertstalker · 08-19-2012, 11:55 PM

Try lowering the Tail gain a couple of points

branmuffin · 08-20-2012, 12:44 AM

i would drop the gain on your TX a bit and try it. I have to run 50% in normal mode and 40% in IU mode to not get tail wag.

Rattler888 · 08-20-2012, 02:46 AM

Okay thanks, I'll give it a go this weekend.

08-19-2012, 09:04 PM	#1
Rattler888 Registered Users Join Date: Dec 2011 Location: Melbourne	trex 250 shudder in FFF Hi, New trex 250pro dfc with ar7200bx. I have 100% throttle and ATV, pitch at 12 dgerees, gyro is at 60.5% (on dx6i), and the microbeast performance options are all at defaults. Using 3M 4011 tape. I threw it around as hard as I could for 3 batteries, and it was all fine, except when I flew forward at max speed, it gave one big tail shudder. This also happened once during a full power inverted climbout. Any ideas what it might be? It didn't look like a blowout, more like a big shake. Does it sound like vibes or a setting? As I type this I'm thinking maybe it's because my gyro tape is not completely flat (has a bit of plastic under one corner because I mounted it on the side of the 250) Thanks __________________ 250 pro beastx, 130x, mcpx BL, nano, msrx, dx6i

08-19-2012, 11:55 PM	#2
desertstalker Registered Users Join Date: Apr 2011 Location: Australia	Try lowering the Tail gain a couple of points __________________ -DX8 -MSH MiniProtos Stretched, SK720, DS95/DS95i, Hyp 4S 25C 2500mAh -MSH Protos Stretched, Brain, Hyp DS16/BLS251, 6S 3000mAh

08-20-2012, 12:44 AM	#3
branmuffin Registered Users Join Date: Mar 2012 Location: portland	i would drop the gain on your TX a bit and try it. I have to run 50% in normal mode and 40% in IU mode to not get tail wag. __________________ Synergy E7 MSH Mini Prôtos FBL Stretch 6s MSH Prôtos CF FBL Sretch

08-20-2012, 02:46 AM	#4
Rattler888 Registered Users Thread Starter Join Date: Dec 2011 Location: Melbourne	Okay thanks, I'll give it a go this weekend. __________________ 250 pro beastx, 130x, mcpx BL, nano, msrx, dx6i

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