Will the plane take off v.2?

[CraKaJaX]

Looks like that lake has major current flowing in it.

 

[Squisher]

Originally posted by: WolverineGator

Originally posted by: Rastus
How much bulk beef is in the cargo hold?

Probably 10 pounds.

Alternator sized?

 

[ScottMac]

OP: DIAF for bringing this up again.

The mechanics and physics haven't changed, water or treadmill. Same / Same.

The plane take off.

 

[KillerCharlie]

Originally posted by: ScottMac
OP: DIAF for bringing this up again.

The mechanics and physics haven't changed, water or treadmill. Same / Same.

The plane take off.

You're wrong.

In the water case, you're dragging the pontoons against the water. The faster the current, the more skin friction against the pontoons, requiring more force to take off.

In the treadmill case, the friction force on the airplane from the wheels is NOT dependent on the speed of the wheels.

In this case, though, the question is "how fast is the current" because whether or not it will take off depends on this. In the treadmill case, the speed is not relevant.

<--- Professional aerodynamicist for major airplane manufacturer

 

[Bill Brasky]

Originally posted by: Acanthus
It will take off if you throw .999 repeating hand grenades at it.

My neighbors heard me laughing.

Great thread. :thumbsup:

 

[Number1]

Originally posted by: KillerCharlie

Originally posted by: ScottMac
OP: DIAF for bringing this up again.

The mechanics and physics haven't changed, water or treadmill. Same / Same.

The plane take off.

You're wrong.

In the water case, you're dragging the pontoons against the water. The faster the current, the more skin friction against the pontoons, requiring more force to take off.

In the treadmill case, the friction force on the airplane from the wheels is NOT dependent on the speed of the wheels.

In this case, though, the question is "how fast is the current" because whether or not it will take off depends on this. In the treadmill case, the speed is not relevant.

<--- Professional aerodynamicist for major airplane manufacturer

Time to find another job!!!!!

Muthbuster is going to do the plane on a threadmill story in December I believe.

 

[KillerCharlie]

Originally posted by: Number1

Originally posted by: KillerCharlie

Originally posted by: ScottMac
OP: DIAF for bringing this up again.

The mechanics and physics haven't changed, water or treadmill. Same / Same.

The plane take off.

You're wrong.

In the water case, you're dragging the pontoons against the water. The faster the current, the more skin friction against the pontoons, requiring more force to take off.

In the treadmill case, the friction force on the airplane from the wheels is NOT dependent on the speed of the wheels.

In this case, though, the question is "how fast is the current" because whether or not it will take off depends on this. In the treadmill case, the speed is not relevant.

<--- Professional aerodynamicist for major airplane manufacturer

Time to find another job!!!!!

Muthbuster is going to do the plane on a threadmill story in December I believe.

Sorry, Mythbusters are stupid.

 

[Number1]

Originally posted by: KillerCharlie

Originally posted by: Number1

Originally posted by: KillerCharlie

Originally posted by: ScottMac
OP: DIAF for bringing this up again.

The mechanics and physics haven't changed, water or treadmill. Same / Same.

The plane take off.

You're wrong.

In the water case, you're dragging the pontoons against the water. The faster the current, the more skin friction against the pontoons, requiring more force to take off.

In the treadmill case, the friction force on the airplane from the wheels is NOT dependent on the speed of the wheels.

In this case, though, the question is "how fast is the current" because whether or not it will take off depends on this. In the treadmill case, the speed is not relevant.

<--- Professional aerodynamicist for major airplane manufacturer

Time to find another job!!!!!

Muthbuster is going to do the plane on a threadmill story in December I believe.

Sorry, Mythbusters are stupid.

I find the show quite entertaining.

 

[Chaotic42]

Originally posted by: Number1
Time to find another job!!!!!

Muthbuster is going to do the plane on a threadmill story in December I believe.

No, he's right. The pontoons are directly connected to the airplane, and any force that affects them will affect the entire aircraft.

<--- Cartographer

 

[KillerCharlie]

Originally posted by: Number1

I find the show quite entertaining.

It definitely is entertaining, but they're still clueless when it comes to physics.

 

[Number1]

Originally posted by: Chaotic42

Originally posted by: Number1
Time to find another job!!!!!

Muthbuster is going to do the plane on a threadmill story in December I believe.

No, he's right. The pontoons are directly connected to the airplane, and any force that affects them will affect the entire aircraft.

<--- Cartographer

On second tought, he might be right. A current strong enough might generate enough friction to stop the plane.

<---Radio Technician

 

[her209]

Originally posted by: theprodigalrebel
failplane.jpg

Eject!

 

[irishScott]

Originally posted by: ultimatebob

Originally posted by: SoulAssassin
If Mythbusters do this I hope they blow the plane up at the end for no scientific reason.

They also need an excuse to have Kari Byron in a skimpy swimsuit. Maybe they should sink it and make her recover the blackbox or something.

Already done.

http://www.loveredheads.com/wp...6/08/kari_byron_02.jpg (SFW)
http://saturn5.com/darwin/beef...adio_belly_800x600.jpg (SFW)
http://saturn5.com/darwin/beef...adio_smile_800x600.jpg (SFW)

 

[altonb1]

Originally posted by: Ctrackstar126
I feel bad for the random people who come and read the forums. For people who dont know the history these threads would just be a big WTF. Actually I know the history and its still a WTF

QFT

 

[MegaVovaN]

Where the fuck is POLL?
Plane WILL take off if motor is strong enough.

 

[Chryso]

Is the current speed variable or constant?

 

[montypythizzle]

Originally posted by: tfinch2
The plane will take off and crash into the OP.

:thumbsup:

 

[montypythizzle]

Originally posted by: irishScott

Originally posted by: ultimatebob

Originally posted by: SoulAssassin
If Mythbusters do this I hope they blow the plane up at the end for no scientific reason.

They also need an excuse to have Kari Byron in a skimpy swimsuit. Maybe they should sink it and make her recover the blackbox or something.

Already done.

http://www.loveredheads.com/wp...6/08/kari_byron_02.jpg (SFW)
http://saturn5.com/darwin/beef...adio_belly_800x600.jpg (SFW)
http://saturn5.com/darwin/beef...adio_smile_800x600.jpg (SFW)

n00dz?

2nd and 3rd linkz need teh fix.

*FAP* *FAP* *FAP*

 

[Jeff7]

Originally posted by: KillerCharlie

Originally posted by: ScottMac
OP: DIAF for bringing this up again.

The mechanics and physics haven't changed, water or treadmill. Same / Same.

The plane take off.

You're wrong.

In the water case, you're dragging the pontoons against the water. The faster the current, the more skin friction against the pontoons, requiring more force to take off.

In the treadmill case, the friction force on the airplane from the wheels is NOT dependent on the speed of the wheels.

In this case, though, the question is "how fast is the current" because whether or not it will take off depends on this. In the treadmill case, the speed is not relevant.

<--- Professional aerodynamicist for major airplane manufacturer

Coefficient of friction was never defined in the original problem, nor was the geometry of the pontoons. For all we know the water could be in a super-fluid state.

 

[TecHNooB]

The plane never takes off. In either case. Who seriously thinks the plane will take off?

 

[preslove]

Why wouldn't the plane just turn around and go with the current? I assume that this would be SOP.

 

[MegaVovaN]

Originally posted by: TecHNooB
The plane never takes off. In either case. Who seriously thinks the plane will take off?

TROLL! :|

 

[smack Down]

Originally posted by: Chaotic42

Originally posted by: Number1
Time to find another job!!!!!

Muthbuster is going to do the plane on a threadmill story in December I believe.

No, he's right. The pontoons are directly connected to the airplane, and any force that affects them will affect the entire aircraft.

<--- Cartographer

Don't know what kind of a plane you fly on but everyone i have the wheels are directly connected to the plane.

 

[Bill Brasky]

Another issue is that as the plane gains speed, some lift will be created slightly raising the pontoons in the water. This will reduce pontoon/water contact and reduce friction, allowing the plane to gain more speed. Most likely the plane will take off, but there are too many undefined variables to know.

 

[Tylanner]

Depends if it can attain necessary relative speed to take off, EXACT same question (and just as stupid/useless) and answer as the treadmill, regardless of how you want interpret the friction.

A treadmill and a current would both force a "thrust less" plane backward.

The question is not definitively answerable, but it can be interpreted and clarified.