Airplane on a Conveyor conundrum

[BUSHWHACKER]

Why is belly button fluff always blue?

[yoshie]

too dear boy

that's not nice Graham

[TonyN]

if the plane is travelling at 200mph along the belt then it will take off regardless of what speed the belt is turning !

It won't take off, because the orginal post said, as I quoted earlier....

The conveyor belt is computer controlled such that its speed is always the same as that of the aircraft - only backwards. I.e. If the aircraft is moving forwards at 10mph, then the conveyor will move backwards at 10mph.

The plane will never travel at 200mph, the conveyor will match any speed the plane trys to travel forwards at, therefore, air speed over the wing will be zero, meaning no getty up in airy!!!!

Sheesh.

[BUSHWHACKER]

Which came first, the chicken or the egg?

[white akita]

the conveyor belt would just make the wheels turn faster !

[darkdezigns]

too dear boy

that's not nice Graham

anyone else fancy a pop?

[yoshie]

It won't take off, because the orginal post said, as I quoted earlier....



The plane will never travel at 200mph, the conveyor will match any speed the plane trys to travel forwards at, therefore, air speed over the wing will be zero, meaning no getty up in airy!!!!

Sheesh.

If the wheels were spinning at a million mph an inch off the ground if you hit the go pedal what happens?? Thrust acts on the air and moves the plane forward now drop the plane an inch what's changed?

[BUSHWHACKER]

anyone else fancy a pop?

Coke please, full fat, none of that gay sugar free crap!

[darkdezigns]

Coke please, full fat, none of that gay sugar free crap!

snap im just waitin till they are proved wrong

[darkdezigns]

If the wheels were spinning at a million mph an inch off the ground if you hit the go pedal what happens?? Thrust acts on the air and moves the plane forward now drop the plane an inch what's changed?

if its on a conveyor belt how will the thrust move it forward??

[white akita]

not going to happen mate, the wheels dont power a plane .

[Albannach]

Why is belly button fluff always blue?

Mine is grey(ish)

I like the fact that someone spends so much time collecting belly button fluff and sticking it on barbed wire fences. This allows the sheep to rub up against the fences collecting lots of the stuff which is then recycled into clothing for us, the original donors.

Big up to the fluff collector

[Apache]

Look, just forget all about wheels and conveyor belts. If the speed reference is to an external point, it makes no difference, the plane will fly.

If the speed reference is to the conveyor belt itself it wont.

I suggest everyone reads the original premise again and sees that both answers are correct depending on which reference you assume.

Lets have some truck pictures, this is boring now cos everyone is repeating themselves.

[white akita]

Mine is grey(ish)

I like the fact that someone spends so much time collecting belly button fluff and sticking it on barbed wire fences. This allows the sheep to rub up against the fences collecting lots of the stuff which is then recycled into clothing for us, the original donors.

Big up to the fluff collector

because most clothing fibres are blue and they collect there, FACT.

[yoshie]

If the wheels were spinning at a million mph an inch off the ground if you hit the go pedal what happens?? Thrust acts on the air and moves the plane forward now drop the plane an inch what's changed?

Did you even read the above

if its on a conveyor belt how will the thrust move it forward??

Because the thrust acts on the air not the belt