Sound familiar?

[Steve]

http://www.kottke.org/06/02/plane-conveyor-belt

 

[markie]

Please not again

 

[Big_Spark]

 

[tim west]

If we assume that the wheelbearings have no friction whatsoever then the conveyor travelling backwards at 800 kph,mph or whatever with no thrust from the planes engines as suggested by one of the posters would merely spin the wheels the plane without thrust would remain stationary and not move backwards, apply thrust and the plane would move forwards, the runway conveyor system can increase it's speed if it wishes it makes no difference whatsoever the plane will continue to move forward in relation to it's surroundings to the thrust applied and will take off when the lift is sufficient.

 

[gcol]

tim NOOOOOOOOOOOOOOOOOOOOOOOOO! This has been WELL covered in a previous thread that went on for weeks. Crafty, you should know better. Please don't let us start this again.

 

[tim west]

tim NOOOOOOOOOOOOOOOOOOOOOOOOO! This has been WELL covered in a previous thread that went on for weeks. Crafty, you should know better. Please don't let us start this again.

Perhaps the answer hadn't been explained properly before now?

 

[gcol]

Aye alright
I suggest you read this http://www.diynot.com/forums/viewtopic.php?t=54168&highlight=plane and see if your answer has been covered. That should keep you quiet most of the day.

 

[Thermo]

If we assume that the wheelbearings have no friction whatsoever then the conveyor travelling backwards at 800 kph,mph or whatever with no thrust from the planes engines as suggested by one of the posters would merely spin the wheels the plane without thrust would remain stationary and not move backwards, apply thrust and the plane would move forwards, the runway conveyor system can increase it's speed if it wishes it makes no difference whatsoever the plane will continue to move forward in relation to it's surroundings to the thrust applied and will take off when the lift is sufficient.

or we could just leave it where it belongs, as surely weve got better things to do with our time than bore the pants of each other with hypothetical answers that no one really knows the answer to.........

Now about that perfect sphere........

 

[Steve]

Gotta love rattling cages and ruffling feathers