Building An Avispad to check the flight characteristics of apm....

Fuselge construction

Best of luck!
Unluckily mine has still not flown.
Crashed mine 5 times.

thank u prabal....could you pls tell what happened

In my case,
The avispad keeps banking to the left.
The ailerons were both flush during the 1st crash. It banked to the left.
2nd time, i gave right trim. Even then it turned to the left.
3rd time , i gave right rudder, i set the motor to 3deg. Right and even then it turned to  the left and cartwheeled.
I dont know what was/is wrong with the plane.
P.S - all surfaces were correct, properly set and trimmed.

actually the same thing happened in my case too... in my old avispad

Did you find any solution?
Or maybe the design is faulty.
Regards

What is the circled thingy?

the airfoil i made was not perfect.... i shifted my battery to right side....  moved the right alieron completely  up and the left completly down....

and the result

https://www.youtube.com/watch?v=hxXSWqslt0U&feature=youtu.be

a nice flying plane.... do u use landing gear

Quote from: prabal276 on January 02, 2016, 10:20:46 PM
What is the circled thingy?

actually i am using 72mhz antenna.... its the hosuing antenna for rx...its shown

Yes i use FOUR" landing gear.😆

sometimes the launch could be a prob... thats why i asked

Quote from: prabal276 on January 02, 2016, 10:11:24 PM
In my case,
The avispad keeps banking to the left.
The ailerons were both flush during the 1st crash. It banked to the left.
2nd time, i gave right trim. Even then it turned to the left.
3rd time , i gave right rudder, i set the motor to 3deg. Right and even then it turned to  the left and cartwheeled.
I dont know what was/is wrong with the plane.
P.S - all surfaces were correct, properly set and trimmed.

Was the thrust line straight ?

what is a thrust line?
I, truly speaking, do not know.

Quote from: prabal276 on January 03, 2016, 09:35:47 AM
what is a thrust line?
I, truly speaking, do not know.

It refers to the direction of motor in relation with the central axis of the aircraft. The motor should be tilted slightly to the right and downwards , this will counteract the left tendency. And this stands true for all pullers .
Regards

Sir,
The motor was already at 4 degree down thrust and set at 2 degree right thrust on the 2nd flight.
Even then it showed no improvement
REGARDS

Prabal, is the same one I maidened? If so, at that time it just needed some downthrust. It would need to be checked thoroughly to see why it banks severely left. Maybe stab is offset.

sir,
i added more down thrust to it.
and now it will be maiden-ed again in jodhpur.
going today.
Will return on 10th.
Will be visiting Sharmas' and will meet with tanmay!

Hi Prabal, I too had this issue before. Try this "Ensure the fin is centered with the stabilizer, and that the stabilizer is level with the wings. If the horizontal stabilizer is low or high on one side, the model will screw in loops" Good luck 👍

To adjust thrust line, simple rubber bands helps many a time!

Allright will follow your advice.
thanks.

On progress

Horizontal stabilizer and vertical stabilizer attached

Completed fuselage construction

Excellent!

Thank u prabal