Imagine a plane is sitting on a treadmill...
#198
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Joined: Mar 2007
Posts: 4,059











How can the treadmill stop the plane from moving through the air? The plane isn't being driven down the runway by its wheels. It's being thrust by its engines. The wheels are turning because of friction between the tires and the runway. All the treadmill can do is change the rate the wheels are spinning. It can't prevent the thrust from moving the airframe. How can a treadmill turning the wheels reduce indicated airspeed to zero?
#199
How can the treadmill stop the plane from moving through the air? The plane isn't being driven down the runway by its wheels. It's being thrust by its engines. The wheels are turning because of friction between the tires and the runway. All the treadmill can do is change the rate the wheels are spinning. It can't prevent the thrust from moving the airframe. How can a treadmill turning the wheels reduce indicated airspeed to zero?
#200
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Joined: Jun 2007
Posts: 2,549
From: Musquodoboit Harbour, Nova Scotia











Treadmill moves back at 180mph......plane moves forward at 180mph......wheels spin at 360mph.....
Result.....................Take off
Result.....................Take off
#202










Joined: Jul 2005
Posts: 15,883

Who says a puny treadmill is going to stop a plane?
Check out this photo of an Airbus A340 which jumped the chocks during an engine test at the factory in Toulouse just this past Thursday.
http://www.airliners.net/open.file/1293784/L/
Major oops.
Five people injured three apparently still in hospital.
Check out this photo of an Airbus A340 which jumped the chocks during an engine test at the factory in Toulouse just this past Thursday.
http://www.airliners.net/open.file/1293784/L/
Major oops.
Five people injured three apparently still in hospital.
#203
Also is the plane a globespan flight, cause it would probably be delayed or grounded anyway LOL
steve
steve
#205
Banned






Joined: Aug 2007
Posts: 1,810
From: New Caledonia











Had this happen. A flock of birds landed on the runway at the wrong time. Just as we rotated there were a few loud bangs, lost several key instruments, a few birds went into the engines and were spat out the back. The only way to abort was by swimming.
This made for a very interesting situation.
#207
No this was a was fleshy one!
Had this happen. A flock of birds landed on the runway at the wrong time. Just as we rotated there were a few loud bangs, lost several key instruments, a few birds went into the engines and were spat out the back. The only way to abort was by swimming.
This made for a very interesting situation.
Had this happen. A flock of birds landed on the runway at the wrong time. Just as we rotated there were a few loud bangs, lost several key instruments, a few birds went into the engines and were spat out the back. The only way to abort was by swimming.
This made for a very interesting situation.
you have to watch what goes into these engines
http://www.youtube.com/watch?v=L_gpPbpONK4
#208
Banned






Joined: Aug 2007
Posts: 1,810
From: New Caledonia











straight to brown alert there then!!!!!!!
you have to watch what goes into these engines
http://www.youtube.com/watch?v=L_gpPbpONK4
you have to watch what goes into these engines
http://www.youtube.com/watch?v=L_gpPbpONK4
#209
Banned






Joined: Aug 2007
Posts: 1,810
From: New Caledonia











Man buys Harrier jump jet on eBay
A Somerset man has bought a £35million Harrier jump jet on eBay for £10,000.
A Somerset man has bought a £35million Harrier jump jet on eBay for £10,000.
#210
"He was a bit shaken up though."

A Harrier that's a bit excessive, I just want to buy an APU or the tubine from a GPU ,so I can build one of these.
http://www.turbinefun.com/TurbinePoweredHondaCRX.asp

A Harrier that's a bit excessive, I just want to buy an APU or the tubine from a GPU ,so I can build one of these.
http://www.turbinefun.com/TurbinePoweredHondaCRX.asp
Last edited by johnnyc; Nov 19th 2007 at 12:32 am.





