A pretty cool one,
A T-Rex helicopter is a type of radio controlled helicopter made by Align. There are many different models of the T-Rex helicopter, with the 100 being a micro model.
This question is very ambiguous since it depends on the model, make and type of helicopter. For instance, it depends on whether you're asking about a small, private helicopter with a bubble canopy up front, or a big military Chinook helicopter.
It depends on what type of helicopter.
She flew a variety of aircraft, a Kinner Airster, an Avro Avian, various models of Lockheed Vega and the Lockheed Electra.
That depends on type of helicopter
There is a great website on Google if you type in 'Make Playing Helicopter':)
no a helicopter is not a airplane because helicopter lifts but a plane takes off and a helicopters propeller is huger than a planes
Type in "OHDUDE" and you will get a helicopter with weapons.
Yes, the word 'helicopter' is a noun, a singular, common, concrete noun; a word for a type of aircraft, a thing. The word helicopter is also a verb; to travel or transport by helicopter.
a twin-engine Lockheed Electra
That depends largely on the type of helicopter. This may be an interesting read. http://www.greatoutdoors.com/published/helicopter-on-everest-makes-history
For the USAF/USA, it depends on aircraft size/type, rotor disc diameter, whether or not the helicopter is equipped with wheels or skids. See AFH 32-1084 and/or UFC 3-260-01 for specifics.