On 23/08/2019 10:34, Mike Clarke wrote:
On 23/08/2019 08:14, The Natural Philosopher wrote:

All force, no distance
An infintely large infinitely strongÂ* helicopter could hover with no
power input.

Not so. It's having to generate lift with the rotating rotor blades. The
work is proportional to the torque on the rotor shaft and the number of
revolutions.

An infintely large rotor turns at zero RPM

There are no revolutions.


--
€œwhen things get difficult you just have to lie€�

€• Jean Claud Jüncker