help me....question

Started by imran1042, October 19, 2012, 07:05:12 PM

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imran1042

Hi everyone,
I was flying my hobbyzone firebird at the park and once i took off it started to pitch up while i was pushing down(servos are not reversed) and then once it got around 10 to 20 feet in the air the throttle cut and it stalled and it was not responding so i could  not pull up...Any idea on what happened.
Thanks,
                Imran  :'(
Any day at the field is a good day :)

flying saucer

Imran, sounds like the model was tail heavy and possible not enough downthrust. After checking this try increasing your elevator throws.

Good luck!
 

imran1042

ok, the plane was definatly not tail heavy because i flew it fine yesterday
Any day at the field is a good day :)

thehaze

Does it have the virtual instructor system?
Takeoffs are optional. Landings are mandatory.

imran1042

Any day at the field is a good day :)

thehaze

It's this plane right? http://www.hobbyzonerc.com/

If so the virtual instructor is a crash avoidance system built into the plane. It looks like this one uses a gyro system to accomplish this. When the pilot loses control or does something too aggressive the virtual pilot takes over and can act as you describe. My guess is that the virtual pilot got confused by something. The manual says you need to keep the plane level for 5 seconds when you plug in the battery. My guess is this centers the gyro(s). Maybe you missed that step. You should be able to turn it off and avoid this in future. Check the manual, If you still have it.
Takeoffs are optional. Landings are mandatory.

imran1042

ok..thanks Mike.. I did keep it on the ground after putting the batt in for a min just to make sure everything was ok...
Any day at the field is a good day :)

Bobmic

Do you know why the throttle cut?
Did you have control after you picked the plane up ?
Maybe you have a problem in the Rx or Tx

imran1042

i have no idea y the throttle cut and when i picked up the plane i did not check to see if everything was working i just unplugged the batt...
Any day at the field is a good day :)

thehaze

Takeoffs are optional. Landings are mandatory.

imran1042

I am going to test it after i eat breakfast, i did not check yesterday as the glue was drying from the repairs, it was not a crazy crash, just had a small crack on the wing and the whole front of the plane ripped of but i fixed it with epoxy  :)
Any day at the field is a good day :)

Gregor77

Is everyone up? I was up at 6:30...lol!

Michael

FOR THE RECORD, Temac and MAAC do not approve of flying model airplanes in public parks, without explicit permission of a responsible park authority.

Any person flying their model airplane in a public park without permission, does so at their own risk.
Michael

imran1042

Any day at the field is a good day :)