Can A Plane Take Off On A Treadmill?
Registered User
Joined: Jun 2004
Posts: 4,088
Likes: 0
From: Los Angeles
Originally Posted by NFRs2000NYC,Feb 10 2008, 04:56 PM
The engines are moving air over the wings. When a propeller is spinning, it is pushing air over the wings, regardless of the planes motion.
If what you said held true, planes wouldn't need a take off strip. They would just take off like a helicopter.
Registered User
Joined: Mar 2006
Posts: 3,400
Likes: 0
From: VA Beach via South Jersey
Originally Posted by YoZUpZ,Jan 25 2008, 12:46 PM
...Unless its a Harrier or Super Hornet 
Super Hornet not so much granted it takes very little distance to actually take off its still falls under the basic principal for flight. How do i know this? I work on Super Hornets.
send all the worthless crap there 
Registered User
Joined: Aug 2007
Posts: 7,712
Likes: 1
Originally Posted by SheDrivesIt,Feb 11 2008, 06:34 PM
VTOL planes can do just that.
Helicopter rotors basically pull the airframe up into the air (there is lift produced, but it's easier to explain it this way). Their directional movement is determined by the angle of the rotors relative to the ground (tilt forward, moves/pulled forward; tilt backwards, moves/pulled backwards; etc).
VTOL jets (Harriers) use the thrust of the engines to push the aircraft into the air, the thrust is then vectored to move them forward. Keep in mind, fighter jets use lift, but they act far more like a missile than an airplane. This is why airplanes can glide after power loss whereas fighter jets tend to plummet. The wings on a fighter jet serve more as control surfaces than for producing lift. This works because the speeds they travel at move enough air over the wings to produce enough lift for the aircraft to fly. Gliding speeds don't move enough air over the wings of a fighter to produce enough lift to keep the aircraft from stalling (the point at which the lift produced is less than the weight of the aircraft)
Joined: Oct 2001
Posts: 5,729
Likes: 2
Originally Posted by Neutered Sputniks,Feb 12 2008, 10:51 AM
Because their engines tilt to work like Helicopter rotors.
Helicopter rotors basically pull the airframe up into the air (there is lift produced, but it's easier to explain it this way). Their directional movement is determined by the angle of the rotors relative to the ground (tilt forward, moves/pulled forward; tilt backwards, moves/pulled backwards; etc).
VTOL jets (Harriers) use the thrust of the engines to push the aircraft into the air, the thrust is then vectored to move them forward. Keep in mind, fighter jets use lift, but they act far more like a missile than an airplane. This is why airplanes can glide after power loss whereas fighter jets tend to plummet. The wings on a fighter jet serve more as control surfaces than for producing lift. This works because the speeds they travel at move enough air over the wings to produce enough lift for the aircraft to fly. Gliding speeds don't move enough air over the wings of a fighter to produce enough lift to keep the aircraft from stalling (the point at which the lift produced is less than the weight of the aircraft)
Helicopter rotors basically pull the airframe up into the air (there is lift produced, but it's easier to explain it this way). Their directional movement is determined by the angle of the rotors relative to the ground (tilt forward, moves/pulled forward; tilt backwards, moves/pulled backwards; etc).
VTOL jets (Harriers) use the thrust of the engines to push the aircraft into the air, the thrust is then vectored to move them forward. Keep in mind, fighter jets use lift, but they act far more like a missile than an airplane. This is why airplanes can glide after power loss whereas fighter jets tend to plummet. The wings on a fighter jet serve more as control surfaces than for producing lift. This works because the speeds they travel at move enough air over the wings to produce enough lift for the aircraft to fly. Gliding speeds don't move enough air over the wings of a fighter to produce enough lift to keep the aircraft from stalling (the point at which the lift produced is less than the weight of the aircraft)
Joined: Oct 2001
Posts: 5,729
Likes: 2
Originally Posted by duboseq,Feb 12 2008, 03:24 PM
What do you mean? 
It just seemed like he was trying to redeem himself; I don't know.