Helicopter on a Turntable
A helicopter is put on a giant turntable. The turntable will match the speed of the propellers in the opposite direction.
i.e. – If the helicopter’s propellers are spinning 10,000RPM clockwise, the turntable will spin 10,000RPM counterclockwise.
Category: I Say Funny, featured 4 comments »
December 8th, 2010 at 6:34 am
No. The rotors are not turning relative to the static air around the system. The result here is a set of rotors not moving, while the helicopter airframe is spinning at 10k rpm. No lift from rotors that are not turning. Therefore, no takeoff.
November 26th, 2010 at 8:05 pm
No, it won’t because, from the frame of reference of the helicopter, it’s blades are basically just being pulled along by the 10,000 RPM spinning winds. Zipyme’s answer contradicts itself so he obviously didn’t understand the question.
November 13th, 2010 at 2:07 am
Yes, because the upward thrust is caused by the blades’ cutting though the air, and has nothing to do with their motion relative to the helicopter
February 20th, 2009 at 7:37 am
Sounds a lot like the Airplane-Treadmil. I will need to study this a bit to know for sure.