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Answer Nothing more than any other type of airplane or car. Most helicopters are powered by jet engines that use a gearbox to power the rotor blades. The turbine jet engines are relatively evironmentally friendly compared to other internal combustion engines.
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How do helicopters hurt the environment?
Helicopters do not hurt the environment.
How does a helicopter effect the environment?
Helicopters do not affect the environment.
Are helicopters bad for the environment?
sometimes. their engine uses gas
What do helicopters pilots do?
They fly helicopters.
Do helicopters grow?
Helicopters are machines, they can not grow.
How big are helicopters?
Helicopters are about 200 feet
What is a group of helicopters called?
A group of helicopters.
What are grey helicopters used for?
what are the grey helicopters for
Are helicopters dangerous?
yes, helicopters are dangerous
What would be some alliteration about a helicopter?
The alliteration for helicopters could be higher helicopters or heavy helicopters
Are Helicopters important?
Yes, and not only as military equipment.- if it wasnt for helicopters, hundreds of thousands of people would not be alive today with things such as - Search and rescue helicopters Firefighting helicopters Air ambulances (medEvac) Coast guard helicopters the reality is that helicopters are vital in our modern world
What lifts helicopters?
The rotor blades lift helicopters
