Answer this question...
Senior Member
Joined: Mar 2002
Posts: 2,759
Likes: 0
From: DFW Texas
with the conveyor belt, the plane will have ground speed as a normal take off. the plane will travel down the conveyor belt like the ground wasn't even moving and the wheels will just be spinning twice as fast. the ground has no effect on forward thrust of the plane, and the conveyor belt's only force on the plane is the friction it puts on the bearings and tires.
pukimonster
Joined: Jun 2002
Posts: 9,967
Likes: 2
From: Milwaukee, WI
The answer is no it will not take off.
To those arguing thrust is in the engines not the wheels. Yes, but if the conveyor belt is matching speed in the opposite direction, the plane will remain stationary, thrusting its engines, and not moving through the air to create lift. It's not a Delorean, speed isn't the only thing required for take off.
To those arguing thrust is in the engines not the wheels. Yes, but if the conveyor belt is matching speed in the opposite direction, the plane will remain stationary, thrusting its engines, and not moving through the air to create lift. It's not a Delorean, speed isn't the only thing required for take off.
h:
pukimonster
Joined: Jun 2002
Posts: 9,967
Likes: 2
From: Milwaukee, WI
Do a self test.
Get a conveyor belt start running on it and jump forward like you are doing a distanced long jump. You will NOT jump as far as if you were running on solid ground and leaped from the same spot.
It is basic physics folks. You need forward momentum in order to gain any air resistance over the wings.
Get a conveyor belt start running on it and jump forward like you are doing a distanced long jump. You will NOT jump as far as if you were running on solid ground and leaped from the same spot.
It is basic physics folks. You need forward momentum in order to gain any air resistance over the wings.
Lay a can of soup on the conveyor belt at the grocery store. Does the can move with the conveyor belt or does it hold its position?
Pic Whore
Joined: Jul 2004
Posts: 22,224
Likes: 1
From: NJ
pukimonster
Joined: Jun 2002
Posts: 9,967
Likes: 2
From: Milwaukee, WI
there is relatively zero shear friction between the surface of the can and the surface of the belt (that's the reason why the wheel is one of mankinds greatest inventions), and the can doesnt change it's position.. that's my point. it's the same idea with the airplane's wheels.
