Thrust, Drag, Lift, Weight (Gravity).
The Chinook helicopter is an American twin-engine helicopter. The helicopter is used by military forces. The Chinook helicopter is mainly used for troop transportation, artillery movement, and resupply on the battlefield.
Gravity and weight.
Your mother.
Chinook is a helicopter used by many armies and air forces around the world.
2009 Bell Helicopter Armed Forces Bowl - 2009 TV was released on: USA: 31 December 2009
2010 Bell Helicopter Armed Forces Bowl - 2010 TV was released on: USA: 30 December 2010
2007 Bell Helicopter Armed Forces Bowl - 2007 TV was released on: USA: 31 December 2007
Three forces work here. There is gravity, air resistance and the lift force made by the blades autorotation. When the air resistance and gravity forces are equal in strength, this means that the helicopter has reached its terminal velocity. It cannot fall any faster than it is. As the helicopter is using auto-rotation, the pilot does not need to change any controls because the forces will balance out themselves. The helicopter, with the aid of the still spinning blades of the helicopter, will be able to make a safe landing.
Southern Methodist University
US forces could attack or re-supply ANYTIME & ANYWHERE!
The EH 101 Merlin replaces the Sea King in many navies and air forces
When a helicopter is hovering (aka "still") it has the force of gravity pushing "down" toward the Earth and the force of "lift" of the spinning rotor blade(s) pushing against the surrounding air. When the gravitational force is equal to the force of lift the helicopter hovers on the vertical axis.