RIP - VTEnviro
His Memory Eternal
It took off normally, but then this happened in mid-air!
Mythbusters: Airplane on a Conveyor Belt
- Thread starter Wolverine
- Start date
Help Support Professional Engineer & PE Exam Forum:
- Status
nufb52
New member
I'm so pissed that I missed this! I had it on my calendar too. I still have absolutely no idea how it works. I need to see a re-run.
C-Dog
Well-known member
Thrust + Drag + Lift + Gravity = Flight
The treadmill has only to do with ground speed, planes, inorder to fly are dependent on air speed over the wings. The thrust is provided by a prop, fan, or jet, not through the wheels, so the treadmill does not even factor into the reference frame.
The treadmill has only to do with ground speed, planes, inorder to fly are dependent on air speed over the wings. The thrust is provided by a prop, fan, or jet, not through the wheels, so the treadmill does not even factor into the reference frame.
Don't worry, if there is one thing that the discovery channel can do it's re-run episodes of it's highly rated shows over and over and over and over and over....
...then just for good measure they will throw in an all day mythbusters/dirty jobs/deadliest catch/etc. marathon! And for some reason I can't help but watch? Go figure. :dunno:
Dark Knight
Silent Guardian
Mistery solved. The darn thing flies so now...please....Send this fudging thread to the abyss. :smileyballs:
Last edited by a moderator:
Wolverine
Uncanny Pompadour
Except when Chuck Norris takes off from an aircraft carrier, he doesn't get launched by the steam catapult; he actually pushes the aircraft carrier backwards.
cement
gray haired dude
would he be able to if he were on a treadmill?
RIP - VTEnviro
His Memory Eternal
Agreed. I'd give it a day or two for people to talk about the show but the I'm locking all the treadmill threads other than the one in the HOF.
For anyone that missed it, here is the moneyshot (uh, that just doesn't sound right)
http://www.youtube.com/watch?v=IbRcg3ji_Pc
http://www.youtube.com/watch?v=IbRcg3ji_Pc
IlPadrino
Well-known member
You think the sliding resistance of skids on arctic snow is less than the rolling resistance and axle friction of airplane wheels?
From my perspective, the only interesting things about this has STILL not been addressed. What is the quantitative retarding force of the conveyor (rolling resistance and axle friction)? As the conveyor increases in speed, what happens to this retarding force (i.e. is it linear?) At what rotational speed will the heat generated by the friction seize the axle? Can an airplane take of if the wheels axle is seized?
Nope... I'm not happy with the myth simply being busted.
Slugger926
Well-known member
C-Dog
Well-known member
Who cares about the plane, what about the Segway? That is some good camratry...
IlPadrino
Well-known member
How is a FBD going to help calculate rolling resistance and axle friction? I thought about asking some Boy Scouts (them pine car derbys are hard!) but would feel a little embarrassed.
Sorry, I don't think we ever calculated the rolling resistance or axle friction of our pinewood derby cars. It's cub scouts who do that anyway, not boy scouts. All I ever did was make mine as heavy as I was allowed to make it and covered every inch of the axles and wheels with powdered graphite. What great fun, and a huge mess.
:huh:by the way, my kid got 1st place in the pinewood derby this year! It was an ugly ass car, but I put all the weights above the rear axle and man that thing flew!!!!!!!!!!!!!!!!!!!!!!!!!!
So who made the car? You or your son?
- Status
Similar threads
