What is the front of a helicopter called?
Fuselage
Do helicopters have doors?
Having the doors on blocks all the wind. For longer flights, some people may find this more comfortable and enjoyable. Helicopters are noisy so special headsets are available for every passenger doors are on or off. Not only do they block the noise but they allow two way communication with all on board.
Do helicopters have propellers?
Helicopters don’t have “propellers”, they have rotors. Rotors have multiple rotor blades. Rotor blades are shaped to generate lift similar to a wing on an airplane.
Why must a helicopter have 2 propellers?
Due to the torque produced by the spinning main rotor, the helicopter’s fuselage (body) would rotate the opposite way until it reaches a speed which equal and opposite to the torque. The tail rotor counteracts the torque on the main rotor by creating a re-direction of air.
How do helicopters stay stabilized?
Stabilizer — The stabilizer bar sits above and across the main rotor blade. Its weight and rotation dampen unwanted vibrations in the main rotor, helping to stabilize the craft in all flight conditions. Arthur Young, the gent who designed the Bell 47 helicopter, is credited with inventing the stabilizer bar.
How are helicopters controlled?
A helicopter has four controls: collective pitch control, throttle control, antitorque control, and cyclic pitch control. The collective pitch control is usually found at the pilot’s left hand; it is a lever that moves up and down to change the pitch angle of the main rotor blades.
What actor died in a helicopter crash?
On July 23, 1982, Vic Morrow and two child actors, Renee Shinn Chen and Myca Dinh Le, are killed in an accident involving a helicopter during filming on the California set of Twilight Zone: The Movie.
Do helicopters have gears?
The main purpose of a helicopter main gearbox or transmission is to reduce output rpm of the engine to most suitable level for driving the main rotors and tail rotors of a helicopter. For example, a helicopter having an engine output rpm of 6000 but operates a rotor at 300 rpm.
Do helicopters have a clutch?
The two main types of clutches are the centrifugal clutch and the idler or manual clutch. How the clutch engages the main rotor system during engine start differs between helicopter design. Piston-powered helicopters have a means of engaging the clutch manually just as a manual clutch in an automobile.
Do helicopters use a shaft drive system?
In order to make the engine shaft pulley drive the top pulley, the pilot of the helicopter has to move an adjustable pulley, called the idler, and push it against the belts. This in turn tightens the belt and allows the engine shaft pulley to drive the driving shaft.
How do helicopters without tail rotors work?
NOTAR (“no tail rotor”) is a helicopter system which avoids the use of a tail rotor. The system uses a fan inside the tail boom to build a high volume of low-pressure air, which exits through two slots and creates a boundary layer flow of air along the tailboom utilizing the Coandă effect.
What is the purpose of a helicopter tail rotor?
A helicopter tail rotor serves two essential functions. It provides a counteracting force to the helicopter’s main rotor; without the sideways thrust produced by the tail rotor, the torque generated by the main rotor would spin the helicopter’s body in the opposite direction.
Can you fly a helicopter without a tail rotor?
One significant advancement in the last decade has been the no-tail rotor, or NOTAR, helicopter. As you now know, vertical-lift flight is impossible without a tail rotor to counteract the torque produced by the main rotor.
Can a helicopter glide if the engine fails?
A smooth landing with no power. Actually, helicopters have a built-in mechanical control called the collective pitch lever that allows them to descend slowly and land even if the engine dies. This maneuver is called autorotation.
How dangerous are helicopters?
Helicopters are more dangerous, according to data from the federal government, with a fatal accident rate of 0.72 per 100,000 flight hours in 2018. But general aviation — like recreational flying — is even more dangerous than that, with a fatal accident rate of more than 1 accident per 100,000 flight hours in 2018.