will it take off?

[JoeL4330]

a plane is standing on a movable runway( something like a conveyor).as the plane moves the conveyor moves but in the opposite direction.the conveyor has a system that tracks the speed of the plane and matches it exactly in the opposite direction.QUOTE]

Perhaps some readers will be helped by the following: take the sentence literally. If the plane is moving 180mph, say, then the treadmill is moving 180mph in the opposite direction ...so what? If the plane is moving through the air at 180mph it will generate sufficient lift to "take off"

...now the more interesting question: if you take the sentence literally, and the plane climbs to cruise altitude and flies at cruise speed, say, 500mph, will the conveyor be moving in the opposite direction at 500mph? and, if the aircraft does a 180 (makes a U-ey) does the conveyor screech to a halt and reverse itself at 500mph ? And, if the airplane lands on the other coast and comes to rest at the gate, can the conveyor belt finally relax for a while?

 

[Botabill]

The conveyer isn't attached to the plane so that scenario is not an option.

 

[JoeL4330]

sorry, I meant the second part as a joke ...the first part is the more pertinent

 

[rback33]

Yes - same appropriate physics as previously posted. Just change the sign.
larry

PS - Why dont you lengthen your pages. I only have a 19 pg thread.

I figured out how to do this way back when this thread was hot. I have mine set to 20 posts per page and it's still 37 pages long. I don't think most people know they can change this setting. I am glad I figured it out.

Did we ever get and answer to the pool ball question?

 

[daTeacha]

I think so. I can post it if needed.

Re your fans on the carrier, Pat -- I hope the flyer doesn't overshoot the landing when coming into that breeze. Personally, I think it be more fun to see something the size of a carrier moving through the water at the landing speed of a jet fighter.

Speaking of jet and ships, have you seen the video clip of a guy flying his plane between two ships while breaking the sound barrier? It's pretty impressive if someone can pull it up and post it here.

 

[Redbug]

Ohhh Gawd...This thread has come alivvvvvve again! Someone just shoot me!!!!

 

[Jimbrown]

I think so. I can post it if needed.

Speaking of jet and ships, have you seen the video clip of a guy flying his plane between two ships while breaking the sound barrier? It's pretty impressive if someone can pull it up and post it here.

No video but here is one. Plus one of the conveyer belt maybe!

 

[MossRoad]

Ohhh Gawd...This thread has come alivvvvvve again! Someone just shoot me!!!!

BANG!

BANG!

BANG!

BANG! BANG! BANG! BANG! BANG! BANG!

Dang, cheap inaccurate hand guns!!!

 

[Redbug]

And he runs for the hills to live another day...We need more gun control or better shooters....

 

[daTeacha]

Gun Control -- the ability to make your gun shoot where you have aimed.

Unfortunately, the term is often misused by those who oppose the Second Amendment to the U.S. Constitution to support the fanciful idea that a mechanical device, of it's own accord, will inflict harm on persons and things, and thus needs to be an item which only a select few should be allowed own or operate.

If we allow that idea to take hold, the next thing will be Tractor Control since so many people are injured "by" tractors and related machines.