zagi death dive

zagi death dive
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zagi death dive - 7/29/2003 7:26:27 AM

trey3670

Posts: 705
Joined: 5/14/2002
From: greeley, CO, USA
Status: offline

hey guys im just learning to fly my zagi and was wondering if anyone else expereinced the same prob it will go in to a spin one wing down and spiraling there seems to be nothing i can do to stop it,it flys fine untill i feed in a hard right or left then,SPIRAL OF DEATH! thanks guys
wes

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zagi death dive - 7/29/2003 5:14:28 PM

Matt Kirsch

Posts: 7093
Joined: 7/5/2002
From: Rochester, NY, USA
Status: offline

This is normal behaviour for a Zagi. Officially, it is called the "Spiral of Death(tm)," and is well known in the Zagi community.

It simply means you have too much elevator throw for the speed/power/weight you're flying at. It's causing one wing to go into a high-speed stall.

The simple solution to avoiding it is to not turn as hard. Reduce the throw on the elevons if you have to, with ATV on your transmitter, or by other means.

Recovering from it is mostly a matter of luck and altitude. Most of the spirals of death I had with my Zagi were from low altitude, and ended when the plane made contact with something solid... When it's spiraling, the elevons are pretty much useless because they're stalled. No air is flowing over them. Down elevator is the only input that might do something useful. You need to get air flow established over the wing again.

(in reply to trey3670)

Post #: 2

zagi death dive - 7/29/2003 6:35:00 PM

Greg Covey

Posts: 4521
Joined: 5/24/2003
From: Rochester, NY, USA
Status: offline

Ahhh, this thread brings back font memories.

One other thing to add to Matt's suggestions is to throttle completely off when you are diving in the "spiral of death".

Basically, it is a high speed stall and it is much better to learn to react to this condition when flying a Zagi as opposed to flying a .60-size Extra or CAP.

Good luck!

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(in reply to trey3670)

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zagi death dive - 7/29/2003 11:04:56 PM

Smash McCrash

Posts: 10
Joined: 3/8/2003
From: Ventura, CA, USA
Status: offline

I sometimes like to induce a death spiral with my Wing Warrior Raider. The easiest way to recover is to chop the throttle and return all controls to neutral until the plane starts flying again, then gently pull out being careful not to stall the wing again.

Mike

(in reply to trey3670)

Post #: 4

zagi death dive - 7/30/2003 3:02:09 AM

trey3670

Posts: 705
Joined: 5/14/2002
From: greeley, CO, USA
Status: offline

ahhh well i feel better thought it was something i might have done wrong in the build at least its nice to know that its normal behavoir for the zagi,on the up side this thing is tough it bonks in to the ground at high speed ya go ver put the battery back in and throw it off ya go! unbeleivable! thanks for the answers guys

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taking off is optional....landing is not

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Post #: 5

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