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View Full Version : Discussion 3m pusher auto navigated


red_gol
Jul 30, 2007, 12:09 AM
We spent hours after the crash last time.

Now it has a local made autopilot installed. It uses 3-axis-gyro, GPS and barometer to control.

On the pic, u can see the airspeed pipe on the nose and the antenna for the data modem. The antenna for the GPS is inside the fuselage.

A laptop computer can upload parameters to the UAV, and monitor the plane.

Equipped with a DA50, this 15kg monster can shoot to the air in a high speed.

On the computer, the red lines are the preset flight course, which is a 600m square. Since it's 7pm and getting dark, we were not dare to fly it too far. Because the border of the square is too short, you can see some part of the actual flight line (blue) didn't overlap the square.

On the right hand of the screen, you can see the plane was on 206 meters and the speed was 110km/h. The GPS and the barometer reported different numbers, but they are in the same scale.

A wheel of the landing gear lost on the air. But the landing was successful thanks to the honeycomb material.

red_gol
Jul 30, 2007, 12:13 AM
Hope you like the pictures and we appreciate if anyone can give us suggestions.

One problem we had is that the 22 inch propeller was damaged by small carpolite on the runway.

Do you think the carpolite (small stones) was touched off by the front landing gear? Is there a way to prevent?

icebear
Jul 30, 2007, 01:44 AM
Very nice - thanks for sharing!
My uninitiated impression is that a slightly bigger landing gear (carbon fibre perhaps) would be if help here.
Looks like a great design!

/icebear

dalbert02
Jul 30, 2007, 08:20 AM
Very nice!
Tell us more! Give us details on how you built it and what you have inside. I like your design alot. Thank you for sharing.
-dave

SpleenRippa
Jul 30, 2007, 01:59 PM
Hope you like the pictures and we appreciate if anyone can give us suggestions.

One problem we had is that the 22 inch propeller was damaged by small carpolite on the runway.

Do you think the carpolite (small stones) was touched off by the front landing gear? Is there a way to prevent?


Put a fender over the front tire? Kind of like a bicycle, only towards the rear

simo10
Jul 30, 2007, 05:42 PM
Can you tell me what telemetry/modem you are using?

thanks,

simo10

Maple.hill
Aug 16, 2007, 11:58 PM
I like your thinking and have a project of my own ont he drawing board. Twin boom pusher prop and 2.5 m wing span. I'm very excited. Any tips or tricks you want to pass on ....

eagel
Aug 17, 2007, 11:45 AM
cool,you should find a real clean runway to test flying your UAV ,So mybe a difficulty near BEIJING

vortex00
Aug 18, 2007, 10:00 AM
What airfoil did you use for the V-tail?

Jack

macboffin
Aug 18, 2007, 01:00 PM
Nice airplane! Interesting collection of Soviet type aircraft in the background.Could just make out an ANT 2 biplane in the back.
Mac