TBS Discorvery flight issues

[mutley2]

Hey guys, I';ve a bit of an issue when flying my TBS discorvery, on desent it rocks back and forth when I pull the throtle back to loose height quickly. I';ve not touched the stock gains on the Naza V2 GPS so I was wondering what gains you guys are/would run on a
920Kv motors
10" x 3.8 prop
Naza V2 GPS
3s1p 5000mah lipo (should I be running 4s???)
Any help or advice would be great.
(Just noticed I';ve put this post in the non TBS section, could an admin move it please ;-)

[robshaw]

Mine does exactly the same. But im running APM!?

[icedfusion]

Strange shaped frames, such as the TBS have a huge amount of wind resistance when falling out of the sky and when accelerating upwards - my TBS pitches backwards slightly when giving it WOT, but during normal throttle openings it is fine.

One of the ways to counter this rocking is to up your D parameter (this effectively makes the quad feel ';slow'; and treacle like), however, it ';should'; stop this rocking that you see. However, the trade off is it will affect how it flies in general.

I never really rely on falling out of the sky to get my quadcopter back to earth - you need to put your copter upside down and then flip it the right way up just before you get to terra firma!

ice.

[ChrisH]

The instability on descent is usually put down to prop wash. You are basically going into very turbulent air, hence the wobble. Popular resolution is to try to descend with a little forward motion, keeps your quad in clearer air!

It';s very similar to the effect if you try to hover a foot or so off the ground, especially after take-off. 6ft up and it';s fine. 

[mutley2]

Cheers guys, I think a lot of it is down to my heli flying and being able to just bang it straight down to the deck, quads are a totally different kettle of fish and I need to reflect that in my flying style. As said in my post all of the stock settings on my Naza V2 are at 100% and I know you guys tweek them and was wondering what a good ball park figure would be. I have noticed that if you are in FFF you can be a little more aggressive in your decent, any gain settings you run would be a helpful  to start tweeking it in the right direction, many thanks ;-)