if the propellers help it go up what helps it go forwards?
2007-11-08 07:51:35 · 16 answers · asked by Anonymous in Cars & Transportation ➔ Aircraft
As the rotors turn, they tilt slightly giving forward (or backwards or sideways) thrust. This is all controlled by the joystick.
2007-11-08 07:55:49 · answer #1 · answered by Anonymous · 4⤊ 0⤋
I think the easiest way to describe it is that the rotors will always propell air perpendicular to their axis. If they are perfectly flat the helicopter only has upward thrust, and so will only go up and down vertically.
The whole rotor assembly tilts forward (and backwards i might add) so that the rotors are providing both upward lift and forward / backward thrust.
Don't be confused by the guy above with the picture. A helicopters rotors rotate at a constant speed in flight. THe small arms you see on his picture adjust the pitch of the blades, which gives more or less lift.
2007-11-09 01:45:40 · answer #2 · answered by Steven N 4 · 0⤊ 0⤋
When it tilts forward the main rotor blades pull air in and push it out behind it, creating thrust just like a propeller airplane does. Incase your wondering, the rear rotor does the same thing with the air, but it's function is to keep the craft flying in a strait line. That is why it is vertical and not horizontal; so it can push air and create thrust from side to side.
2007-11-08 08:59:14 · answer #3 · answered by Chef 1 · 0⤊ 0⤋
The pilot pushes the stick forward, this causes the rotor disk to tilt forward. The lift from the disk is now angled forward, so it has a vertical and a horizontal component. The horizontal component causes the helicopter to move forward.
That's why you have to increase power when you start to move forward, the total lift is still the same, but part of it is horizontal so less of it is vertical. You need the same upward lift so you have to increase power to compensate.
2007-11-08 08:47:17 · answer #4 · answered by Chris H 6 · 0⤊ 0⤋
The rotor tilts forward slightly and then the Helicopter will propell forward. The rear rutter tilts left or right for turns.
2007-11-08 07:59:39 · answer #5 · answered by bigapple 3 · 1⤊ 1⤋
The propeller leans forward at an angle which gives lift and forward motion.
2007-11-08 07:54:58 · answer #6 · answered by Anonymous · 3⤊ 0⤋
in fact, the helicopter DOES tilt itself. regardless of if, the preliminary action starts with tilting of the rotor disc forward. the subsequent tilting of the helicopter /leaning forwards/ is a results of mix of momentum, raise, thrust and different forces (stabiliser raise and so on). the disc tilts. the helicopter physique follows.
2016-10-15 12:21:40 · answer #7 · answered by ? 4 · 0⤊ 0⤋
It is scary that most of the laymen(women) got it right and the person with the most credentials couldn't be further from the truth.
The rotor disc DOES tilt forward and is done by increasing the angle or attack of the blades on one side of the disc.
2007-11-08 08:31:15 · answer #8 · answered by Anonymous · 2⤊ 1⤋
2 types... standard... the chopper tips slightly forward which allows it to move forward... need to maintain a balance of lift and forward movement to keep it up... generally automatically controlled... the further it tips forward, the faster the forward motion.
other type uses jet propulsion engines... much faster
2007-11-08 07:56:25 · answer #9 · answered by Anonymous · 0⤊ 1⤋
Thrust, and the way the helicopter is tilted.
2007-11-08 07:54:43 · answer #10 · answered by Anonymous · 1⤊ 0⤋