0
Generally speaking there are 4 propellers. Two of them are crossed over each other that form the main propellers, and the other two are at the rear.
Wiki User
∙ 10y ago
Add your answer:
Earn +20 pts
What are the propellers for on a helicopter?
to move the helicopter left and right
How many Decibels does a helicopter make?
Standing next to a helicopter while the propellers are spinning is 110-115dB.
Which helicopter hovers the longest the one with the long propellers or the short propellers?
The Helicopter with the long propellers creates more list and has to do less rotations, and use less power than the one with short proplellers. Therefore Helicopter with the long propellers will hover and stay in air longer than the one with short propellers.
Does short propellers fly longer or long propellers on a helicopter?
it depends on the engine and the shape of the blade.
How heavy is a military helicopter with two propellers?
300 Pounds
Why does helicopter have propeller and aeroplane not?
Aircraft do have propellers , unless they are jets.
How does the wingspan of a falling helicopter effect the speed?
It wouldn't, the propellers are designed to propel the helicopter off of the ground, thus the word propeller, not to make the helicopter glide. The wings are too thin to hold up a helicopter and that is why they spin to gain ground as well as using kinetic energy to lift up. The propellers would eventually bend or snap if the helicopter would be to fall, the speed of the wind would break or damage the propellers.
What is the length size of the propellers of a helicopter?
12.5 ft. to 19 ft. :-)
What is the name of the helicopter with two propellers used to carry suppies?
black hawk
Why do helicopters have propellers for kids?
They do not have propellors for kids. The propellors make the helicopter fly straight
What is another name for helicopter blades?
Rotors, they are generally so-called (Props) applies to conventional propellers on conventonal aircraft, of course an autogyro or a Rotordyne has both propellers and Rotors but that is a special case.
Do helicopters have lights on their propellers?
sometimes, but they need to be on both sides or else the helicopter will lose its balance and crash! it is not beneficial if you put the lights on the propellers because they will move so fast you can't see them...
