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What else can I help you with?
How are helicopters useful?
See answers below.
Are helicopters still used today?
Yes
Were helicopters used in World War 1?
Yes, helicopters were used in WW1. Don't be silly, helicopters were invented towards the end of WWII.
How do helicopters change speed?
By tilting the main rotor forward or backward.
How are helicopters a useful means of air transport?
They can take off vertically and can hover over one spot. Traditional aircraft can not do that.
Are RC Helicopters anything like a real helicopter?
In many ways, yes. RC Helicopters are designed to mimic real ones, and have many similarities. The shape in general is quite the same, and people are always trying to find new ways to make their RC Helicopter more realistic. Obviously, RC Helicopters are made differently on the inside, but there are still many similarities between RC Helicopters and real helicopters.
What do helicopters pilots do?
They fly helicopters.
What are the advantages and disadvantages with helicopters compared to planes?
Helicopters has a limited range compared to planes. Planes need a long pave to operate while helicopters can take off and land a lot more places. Also helicopters can "stand still" in the air while planes need to move all the time. So depending on what you want to do they have different (dis)advantages.
Which is the cheapest helicopter?
The Robinson R22 is about as cheap as helicopters get, and a new one is still a quarter-million dollars.
What engine is in widespread use as the source of power for helicopters it is linked by gears to the helicopter's rotors in a manner similar to the turbine-driven propellers on airplanes?
They're powered either by a gas turbine engine (known as a turboshaft), or some helicopters (such as the Robinson helicopters) still use internal combustion engines.
How big are helicopters?
Helicopters are about 200 feet
What is a group of helicopters called?
A group of helicopters.
