Strange crash with a Curare

Steve25 · Mar 12, 2006, 02:00 PM

Hello guys,

This afternoon, I had a short flight with my most loved bird, it made a beautifull take off, level flight, but every time I used my elevator, I got it rolling to the right. I made my turn to bring it in, to notice it got that worse, that for making a turn left, I had to keep the ailerons completely left, to see when using the elevator rolling to the left. That resulted it a more or less sharp dive, which I could level to a degree of 30-45°, to have it's right wing touching ground first, by trying to level more.
Short story, 2 off 3 wheels, resonance pipe threw off, even the exhaust pipe is ready to scrap, wing doesn't look nice, the rest doesn't look good either. Happely, I managed to let it pass between two trees.
Before flight, all controls were checked, even on play. Geometry was checked, even after the crash, all functions of the tail were ok, ailerons were still ok and functional too ?
It puzzles me ? Someone can help me with this one ?

Steven

ronmeister · Mar 12, 2006, 07:25 PM

Could you have possibly hit the switch that controls the elevator and ailerons
together?
I have that function as well as v-tail, elevon mixing, and normal.

Steve25 · Mar 14, 2006, 08:26 AM

Hello Ronmeister,

Nope, that can't be the problem, as this airplane is used with a real old dedicated Sanwa TX, that simply has 4 channels straightforward, so, not even a mixing function, and a range and performance check that even put's new Futaba's in a corner as rubbish. Working on PPM and even AM, it suppresses even TX's in FM, while the other would die on glitches, my rx doesn't even react on any disturbance.
So, I rule out any RC error, heck even any pilot error.
Really, it puzzles me. The airplane was at max. about 400 feet away, on a height of 200 feet, and due to the problem, not able to turn, or pull up.
It even puzzles me more that the model was rolling right by 'up', even combined with full roll left command, one would think that ailerons should have more authority on rolls then on tail ? Again, alle control surfaces were controlled on throw, even under force !

With such an impact, i'm as happy as a child to know that I can repair it, but what's the point as I can not fix the problem ?
The only thing I can add is that this problem occured the first time after a minor repair on the right wing, but this was repaired well, and tested on strenght, angle, etc.

Mar 12, 2006, 02:00 PM	#1
Steve25 Registered User Antwerpen Joined Jul 2005 5 Posts	Strange crash with a Curare Hello guys, This afternoon, I had a short flight with my most loved bird, it made a beautifull take off, level flight, but every time I used my elevator, I got it rolling to the right. I made my turn to bring it in, to notice it got that worse, that for making a turn left, I had to keep the ailerons completely left, to see when using the elevator rolling to the left. That resulted it a more or less sharp dive, which I could level to a degree of 30-45°, to have it's right wing touching ground first, by trying to level more. Short story, 2 off 3 wheels, resonance pipe threw off, even the exhaust pipe is ready to scrap, wing doesn't look nice, the rest doesn't look good either. Happely, I managed to let it pass between two trees. Before flight, all controls were checked, even on play. Geometry was checked, even after the crash, all functions of the tail were ok, ailerons were still ok and functional too ? It puzzles me ? Someone can help me with this one ? Steven

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
First crash with Switchback	bosley	Parkflyers	8	Jan 05, 2003 11:16 AM
Lucky first crash with Switchback	Basketcase	Parkflyers	10	May 31, 2002 09:21 AM
1st Crash with the TM	coggy	Parkflyers	12	Apr 10, 2002 08:32 AM
Hard crash with my Corona...	Tom Viper	Electric Heli Talk	2	Feb 14, 2002 04:51 PM
glitching or strange problems with a Hitec Feather receiver??	KOMET 44	Power Systems	3	Jul 28, 2001 12:09 AM

RCG Sites

About RCG

Features

Tools

Media

Topics

Mar 12, 2006, 07:25 PM	#2
ronmeister Love is like Pi: Irrational USA, ND, Grand Forks Joined Jan 2005 2,146 Posts	Could you have possibly hit the switch that controls the elevator and ailerons together? I have that function as well as v-tail, elevon mixing, and normal.

Mar 14, 2006, 08:26 AM	#3
Steve25 Registered User Antwerpen Joined Jul 2005 5 Posts	Hello Ronmeister, Nope, that can't be the problem, as this airplane is used with a real old dedicated Sanwa TX, that simply has 4 channels straightforward, so, not even a mixing function, and a range and performance check that even put's new Futaba's in a corner as rubbish. Working on PPM and even AM, it suppresses even TX's in FM, while the other would die on glitches, my rx doesn't even react on any disturbance. So, I rule out any RC error, heck even any pilot error. Really, it puzzles me. The airplane was at max. about 400 feet away, on a height of 200 feet, and due to the problem, not able to turn, or pull up. It even puzzles me more that the model was rolling right by 'up', even combined with full roll left command, one would think that ailerons should have more authority on rolls then on tail ? Again, alle control surfaces were controlled on throw, even under force ! With such an impact, i'm as happy as a child to know that I can repair it, but what's the point as I can not fix the problem ? The only thing I can add is that this problem occured the first time after a minor repair on the right wing, but this was repaired well, and tested on strenght, angle, etc.