Table of Contents
Why are helicopters shaped the way they are?
This shape is called an airfoil. That shape makes air flow over the top faster than under the bottom. As a result, there is less air pressure on top of the wing; this causes suction and makes the wing move up. A helicopter’s rotor blades are wings and create lift.
How does a helicopter Work?
Unlike airplanes, helicopters feature spinning wings called blades or rotors on top. As a helicopter’s blades spin, they create a force called lift that allows the helicopter to rise into the air. The rear rotor can face different directions, allowing the helicopter to move forward, backward, and sideways.
How do twin rotor helicopters work?
The two rotors are linked by a transmission that ensures the rotors are synchronized and do not hit each other, even during an engine failure. Tandem rotor designs achieve yaw by applying opposite left and right cyclic to each rotor, effectively pulling both ends of the helicopter in opposite directions.
What does the tail rotor do on a helicopter?
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.
What do helicopter parents do?
Helicopter parents are parents who pay extremely close attention to their kids’ activities and schoolwork in an effort to not only protect them from pain and disappointment, but to help them succeed. Helicopter parents are known to hover over their children and become overly involved in their lives.
How does a Chinook helicopter turn?
Chinooks like most helicopters can fly sideways. Sideways flight is accomplished by tilting both rotors sideways the same amount in the same direction. By tilting the rotors differentially, the aircraft will yaw. This is accomplished by the pilot using rudder pedals just like any other aircraft.
What is the primary purpose of the helicopter main rotor transmission?
The primary purpose of the main rotor transmission is to reduce engine output rpm to optimum rotor rpm.
What is the helicopter dance?
The helicopter, also known as the coffee grinder, is one of the most basic breakdancing moves. To do the helicopter, all you have to do is rest your body on one leg and swing the other “floating” leg, also known as the “helicopter blade,” around your body as many times as you can.