DannyB
Premium Member
Registered: 6th Feb 08
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quote:
Originally posted by CorsAsh
But what would Jesus do?
Just hang around
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Cosmo
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Registered: 29th Mar 01
Location: Im the real one!
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quote:
Originally posted by DannyB
quote:
Originally posted by CorsAsh
But what would Jesus do?
Just hang around
repost
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Mike GSi
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Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
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the only way a plane can take off from a stationary position is if there was a mahoosive fan producing the correct amount of air flow towards the plane.
its not thrust or engine speed that makes the plane fly its the speed of which the air travels past it.
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DannyB
Premium Member
Registered: 6th Feb 08
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Late times
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SportBoy
Member
Registered: 5th Oct 01
Location: Retford, Nottinghamshire
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a harrier could .
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Ian
Site Administrator
Registered: 28th Aug 99
Location: Liverpool
User status: Online
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quote:
Originally posted by Mike GSi
the only way a plane can take off from a stationary position is if there was a mahoosive fan producing the correct amount of air flow towards the plane.
its not thrust or engine speed that makes the plane fly its the speed of which the air travels past it.
Is the speed of the air travelling past the plane not related to thrust then?
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Mike GSi
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Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
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It wouldnt need engine thrust no! take a glider for example.
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DizzyRebel
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Registered: 2nd Jan 09
Location: Lincoln
User status: Offline
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quote:
Originally posted by Ian
quote:
Originally posted by Mike GSi
the only way a plane can take off from a stationary position is if there was a mahoosive fan producing the correct amount of air flow towards the plane.
its not thrust or engine speed that makes the plane fly its the speed of which the air travels past it.
Is the speed of the air travelling past the plane not related to thrust then?
No, If you tied a jumbo jet to a church it wouldnt leave the ground.
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Ian
Site Administrator
Registered: 28th Aug 99
Location: Liverpool
User status: Online
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So the question then. Would a plane, which has thrust, be able to create air speed?
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Cosmo
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Registered: 29th Mar 01
Location: Im the real one!
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the thrust produces the air speed over the wings though, unless every airport has some amazing wind machine at work?
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Ian
Site Administrator
Registered: 28th Aug 99
Location: Liverpool
User status: Online
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quote:
Originally posted by DizzyRebel
No, If you tied a jumbo jet to a church it wouldnt leave the ground.
You have got to be shitting me 
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Mike GSi
Member
Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
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Its no different to those little model planes that you can tie to a desk fan.
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DizzyRebel
Member
Registered: 2nd Jan 09
Location: Lincoln
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quote:
Originally posted by Cosmo
the thrust produces the air speed over the wings though, unless every airport has some amazing wind machine at work?
No it doesnt.
The thrust is simply potential forwards momentum - it does nothing other than give an object the ability to move in a specified direction.
The thrust will propel the plane forwards, and in turn the plane will gather enough speed that the air passing over the wings produces enough lift for it to leave the ground.
The thrust simply pushes/pulls the plane forwards. The plane creates its own lift.
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Cosmo
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Registered: 29th Mar 01
Location: Im the real one!
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quote:
Originally posted by DizzyRebel
quote:
Originally posted by Cosmo
the thrust produces the air speed over the wings though, unless every airport has some amazing wind machine at work?
No it doesnt.
The thrust is simply potential forwards momentum - it does nothing other than give an object the ability to move in a specified direction.
The thrust will propel the plane forwards, and in turn the plane will gather enough speed that the air passing over the wings produces enough lift for it to leave the ground.
The thrust simply pushes/pulls the plane forwards. The plane creates its own lift.
Youve basically just agreed with me but written in 5x as many words!
Thrust = forward movement = air speed over/under the wings = lift
Without the thrust it would not happen. If you think it would then planes would be taking off whilst parked at the airport.
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Joe
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Registered: 20th Jun 04
Location: Hesketh Bank, Lancashire
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Oh no, not again
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Cosmo
Member
Registered: 29th Mar 01
Location: Im the real one!
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Again Joe, again.
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DizzyRebel
Member
Registered: 2nd Jan 09
Location: Lincoln
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quote:
Originally posted by Cosmo
quote:
Originally posted by DizzyRebel
quote:
Originally posted by Cosmo
the thrust produces the air speed over the wings though, unless every airport has some amazing wind machine at work?
No it doesnt.
The thrust is simply potential forwards momentum - it does nothing other than give an object the ability to move in a specified direction.
The thrust will propel the plane forwards, and in turn the plane will gather enough speed that the air passing over the wings produces enough lift for it to leave the ground.
The thrust simply pushes/pulls the plane forwards. The plane creates its own lift.
Youve basically just agreed with me but written in 5x as many words!
Thrust = forward movement = air speed over/under the wings = lift
Without the thrust it would not happen. If you think it would then planes would be taking off whilst parked at the airport.
They would if the wind was blowing hard enough..
You said that thrust creates airspeed, but it doesnt - at least not directly anyway.
The thrust propels the plane along, the plane creates airspeed - Thrust is simply a measure of force, airspeed is a measure of velocity. Thrust creates velocity, but the 2 are not the same.
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Ian
Site Administrator
Registered: 28th Aug 99
Location: Liverpool
User status: Online
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Jesus Christ.
The question is about a planes' ability to overcome the motion of a conveyor belt. I don't need a lesson in how planes work.
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sam-smith
Member
Registered: 8th Jan 07
Location: plymouth, UK
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jesus aint getting on no mother fucking plane, he can fucking fly hes the son of god.
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Cosmo
Member
Registered: 29th Mar 01
Location: Im the real one!
User status: Offline
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quote:
Originally posted by DizzyRebel
They would if the wind was blowing hard enough..
You said that thrust creates airspeed, but it doesnt - at least not directly anyway.
The thrust propels the plane along, the plane creates airspeed - Thrust is simply a measure of force, airspeed is a measure of velocity. Thrust creates velocity, but the 2 are not the same.
Of course it does, I didnt explain every step but I was still correct, the thrust produces the air speed (through propelling the plane forward).
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Mike GSi
Member
Registered: 3rd Jan 07
Location: Ipswich, Suffolk Drives:Astra VXR
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A car could "Take off" if it had the correct aerodynamics, its the engine that would give the car the nescasary (sp) speed to creat the lift. The car would come straight back down again though as there would no longer be any more forward motion. 
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CorsAsh
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Registered: 19th Apr 02
Location: Munich
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If you had a big enough fan blowing at 140mph directly at the front of a 737, would it hover?
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Ian
Site Administrator
Registered: 28th Aug 99
Location: Liverpool
User status: Online
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Stop quoting things which are nothing to do with this problem.
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UGH
Banned
Registered: 28th Oct 09
User status: Offline
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could a helicopter take off if it were in the middle of a tornado that was spining in the opposite rotation to that of the helicopters blades and at the same speed?
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DaveyLC
Member
Registered: 8th Oct 08
Location: Berkshire
User status: Offline
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Yes it could.. The wheels dont propel a plane 
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