How do propellers work on a helicopter?
A helicopter’s spinning blades create thrust like a large propeller, but the thrust is directed vertically. This allows the vehicle to take off and land vertically and to hover. To move forward, the helicopter tilts slightly to direct some of its thrust forward.
How to use a propeller toy?
To use to propeller toy hold the stick against your left palm using your right fingertips, then quickly slide your right hand forward and your left hand back, so that the propeller spins in the anticlockwise direction.
Do 4 blade props fly faster?
At the higher end of the RPM scale, the 3 blade propeller will almost always outperform the 4 blade propeller, so you can expect to lose about 5% of the top speed with a 4 blade propeller.