Posted by Peter Seddon on October 22, 2010 at 8:00am
This is a recent video of the IAI Panther UAV
that combines vertical take off with conventional fixed wing flight. This video is apparently of the miniPanther weighing 12kg and with 2hour endurance.
Joe is right. The aft rotor is tilted starboard to compensate for the yaw. All rotors seem to rotate CCW (its simpler) and the aft rotor has about 30 degress of tilt to produce the opposite yaw. In forward flight, the aft rotor shuts down and the yaw is probably compensated by rudders. Overall the design is not aerodynamically efficient and I wonder whether it actually does go to 65 km at that speed and altitude. See this video:
Because it is probably like a classic tricopter where the angle to the vertical of the third prop at the back can be varied and the two front props could easily be spinning in opposite directions.
Hi,
is it only my impression or are there some cuts at scenes which would be important to see uncut (especially the transitions...
Seems to be a quite early stage of an experiment with complete manual control.
The concept is good, anyway. Let´s do it DIY and autonomous...
Comments
Joe is right. The aft rotor is tilted starboard to compensate for the yaw. All rotors seem to rotate CCW (its simpler) and the aft rotor has about 30 degress of tilt to produce the opposite yaw. In forward flight, the aft rotor shuts down and the yaw is probably compensated by rudders. Overall the design is not aerodynamically efficient and I wonder whether it actually does go to 65 km at that speed and altitude. See this video:
https://www.youtube.com/watch?v=FJv-kQ2rN2c#t=47
Peter
I'm guessing the props spin opposite of each other?
If you could pivot the rear motor forward between the booms you could push with it as well.
is it only my impression or are there some cuts at scenes which would be important to see uncut (especially the transitions...
Seems to be a quite early stage of an experiment with complete manual control.
The concept is good, anyway. Let´s do it DIY and autonomous...