Helicopter
Helicopters which plays a vital role in our day
to day life. We utilise large size t-motors. Its functions and features are discussed
below.
Design
features
Rotor
system
Anti-torque
features
Engines
Flight
controls
Rotor
system
The
rotor system, or more simply rotor, rotating part of a helicopter that
generates lift. A rotor system may be mounted horizontally, as main rotors
are,providing lift vertically, or it may be mounted vertically, such as a tail
rotor, to provide horizontal thrust to counteract torque from the main rotors.
The rotor consists of a mast, hub and rotor blades.
The
mast is a cylindrical metal shaft that extends upwards from the transmission.
At the top of the mast is the attachment point for the rotor blades called the
hub.
Anti-torque
features
Most
helicopters have a single main rotor, but torque created as the engine turns the
rotor causes the body of the helicopter to turn in the opposite direction to the
rotor. To eliminate this effect some sort of anti-torque control must be used.
The
design that igo sikorsky setteld on for his vs-300 was a smaller tail rotor.
The tail rotor pushes or pulls against the tail to counter the torque effect,
and this has become the most common configuration for helicopter design.
Engines
The
number,size and type of engines used on a helicopter determines the size,
function and capability of that helicopter design. The earliest helicopter
engines were simple mechanical devices, such as rubber bands or spondles, which
relegated the size of helicopters to toys and small models.
Flight
controls
A
helicopter has four flight control inputs. These are the cyclic, the
collective, the anti-torque pedals, and the throttle. The cyclic control is
usually located between the pilot’s legs and is commonly called the cyclic stick
or just cyclic. On most helicopters, the cyclic is similar to a joystick.
IF YOU HAVE ANY DOUBT,FEEL FREE
AND COMMENT HERE.
