The uses of helicopters increase almost daily. Just last month I saw one used to assemble a tower crane on top of an apartment block
Helicopters can be equipped with either reciprocating (piston) engines or turbine (jet) engines. There is no reason to suspect that advances in electric batteries or hybrid engines will not permit electic motors from powering helicopters in the future as is already done with some small (model) helicopters now.
Yes, they have many helicopters in Wisconsin.
cause helicopters are really fast
no, if u wanna get in the air, u have to use helicopters
Yes, some opt to use helicopters for crop dusting.
Some large helicopters use 'drogue and hose' refuelling
Early helicopters all used piston engines up to the 1960's . Now most helicopters use jets, except for a few small civilian helicopters. The jets are connected to a very strong and complex transmission which turns the main and tail rotors.
The Coast Guard in US and Britain use helicopters to rescue people.
Yes
Yes, many small helicopters have 3 blades
Helicopters is for special military use and airplanes are only for transportation.
Heinkel made the first for Nazi Germany, but now Boeing and Sikorsky are well-known companies for building helicopters