VAL THOR
@VALTHOR
27 June, 08:55
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"air"? Or "atmosphere"? gaseous medium?
The shape of the blades of a chopper spinning create "lift" which is actually suction. Similarly on a horizontal plane a sailboat's sail trimmed property is propelled through the water by up to 70% suction and the rest pushed by wind and current - with the exception of the wind coming from the stern and stern qtrs.
The choppers motor spins the blades and is sucked up. That's why they fall if the engine dies but airplanes are still controlled gliders with engines off and sailboats sail.
Smartypants.
The shape of the blades of a chopper spinning create "lift" which is actually suction. Similarly on a horizontal plane a sailboat's sail trimmed property is propelled through the water by up to 70% suction and the rest pushed by wind and current - with the exception of the wind coming from the stern and stern qtrs.
The choppers motor spins the blades and is sucked up. That's why they fall if the engine dies but airplanes are still controlled gliders with engines off and sailboats sail.
Smartypants.
10:47 AM - Jun 27, 2025
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