Aircraft and conveyor belt (again)

[megawatt]

KevNurse entered this thread with ...

I've come in late on this discussion but as flying is my profession, I've read through the whole debate and I find it difficult to believe that there can be any disagreement over fundamental aerodynamics.

Your real name wouldn't be John Coward would it?

Exactly what part of the flying profession do you consider yours?

You certainly aren't a pilot or engineer and, if you say differently, either ...

1. You're a fake
or
2. You SERIOUSLY need re-training

MW

 

[tim west]

Only another 11 pages to go, is it going to make it before being locked

 

[megawatt]

Not a chance if these aircraft cleaners keep posting nonsense

 

[AtoZ]

mega
be cool m8

its not that type of thread, its a game visited by people who know already, or will soon fall into line.

you are right of course in the theory of the op's question.

im interested because although it might seem unlikely a conveyor or catapult might be used in future to save noise or fuel.


kev
it would take off. you could spin the plane wheels backwards via the conveyor and the engines would still push the plane forward..

come on guess, i know you have work to do but its a game..

 

[AtoZ]

Orville and Wilbur are spinning in their f*****g graves

didnt orville and wilber use a frame affair to take off and skids to land


no wheels for them to worry about

 

[tim west]

What if you nail the tyres to the conveyor, would it still take off and take the conveyor with it?

 

[tim west]

Orville and Wilbur are spinning in their f*****g graves

didnt orville and wilber use a frame affair to take off and skids to land


no wheels for them to worry about

It had wheels for manoevouring the plane whilst on the ground

 

[AtoZ]

Orville and Wilbur are spinning in their f*****g graves

didnt orville and wilber use a frame affair to take off and skids to land


no wheels for them to worry about

It had wheels for manoevouring the plane whilst on the ground

i suppose they'll be looking at this thread wondering if they could have done things better

 

[tim west]

Yep they really fooked up using a propeller instead of a jet engine

 

[bernardgreen]

OK

This idea may take off

Fit the aircraft with large wheels that can be spun fast and thus store lots of energy as angular momentum

Place aircraft on conveyor and tether it so when the conveyor move the aircraft stays still and its wheels are turned by the conveyor.

Now run the conveyor until the wheels are rotating fast and therefore have lots of angular momentum.

Then release the tethers and stop the belt.

The wheels will continue to rotate but (assuming no slip between tyres and conveyer or ground) will now drive the aircraft forward.

Get the speeds and weights right and you could achieve take off with out any power or motors being used onboard the aircraft.

A bit like push and go toy cars storing energy in a fly wheel

 

[Trazor]

OK

This idea may take off

Fit the aircraft with large wheels that can be spun fast and thus store lots of energy as angular momentum

Place aircraft on conveyor and tether it so when the conveyor move the aircraft stays still and its wheels are turned by the conveyor.

Now run the conveyor until the wheels are rotating fast and therefore have lots of angular momentum.

Then release the tethers and stop the belt.

The wheels will continue to rotate but (assuming no slip between tyres and conveyer or ground) will now drive the aircraft forward.

Get the speeds and weights right and you could achieve take off with out any power or motors being used onboard the aircraft.

A bit like push and go toy cars storing energy in a fly wheel

But how large would the wheels have to be to store sufficient energy, which would then add to the weight of the aircraft, this could be interesting.............. ............

 

[tim west]

OK

This idea may take off

Fit the aircraft with large wheels that can be spun fast and thus store lots of energy as angular momentum

Place aircraft on conveyor and tether it so when the conveyor move the aircraft stays still and its wheels are turned by the conveyor.

Now run the conveyor until the wheels are rotating fast and therefore have lots of angular momentum.

Then release the tethers and stop the belt.

The wheels will continue to rotate but (assuming no slip between tyres and conveyer or ground) will now drive the aircraft forward.

Get the speeds and weights right and you could achieve take off with out any power or motors being used onboard the aircraft.

A bit like push and go toy cars storing energy in a fly wheel

maybe not if Mattel gets involved, the large wheels makes for another question, what about the gyroscopic effect of the wheels would they counteract any forward motion?

 

[Nige F]

OK

This idea may take off


A question, what about the gyroscopic effect

you need one of them ...for the auto pilot, I think .the real pilot`s gone home in disgust

 

[Softus]

Get the speeds and weights right and you could achieve take off with out any power or motors being used onboard the aircraft.

You would, but it would immediately be followed by a catastrophic landing.

 

[AtoZ]

Get the speeds and weights right and you could achieve take off with out any power or motors being used onboard the aircraft.

You would, but it would immediately be followed by a catastrophic landing.

or land on water...

or get thunderbirds out with those little buggies