Author Topic: Never ending gas.  (Read 1796 times)

Offline OOZ662

  • Platinum Member
  • ******
  • Posts: 7019
Re: Never ending gas.
« Reply #15 on: October 28, 2009, 12:54:41 PM »
Go out to your fuel tank you mention, pour the gas out, walk away with it, and shove your nose in the opening. Tell me you don't smell fuel vapor. :)
A Rook who first flew 09/26/03 at the age of 13, has been a GL in 10+ Scenarios, and was two-time Points and First Annual 68KO Cup winner of the AH Extreme Air Racing League.

Offline Sunka

  • Persona Non Grata
  • Silver Member
  • ****
  • Posts: 1774
      • http://www.327th.com/
Re: Never ending gas.
« Reply #16 on: October 28, 2009, 12:56:22 PM »
Go out to your fuel tank you mention, pour the gas out, walk away with it, and shove your nose in the opening. Tell me you don't smell fuel vapor. :)
Once the wing is out of gas, vapor would only last so long...certainly not enough to make flames shoot out my wing till I'm in the tower, after that wing had ran out of gas for 15 minuets.I can empty my gas can here at home and hold a lighter to the open end and not get a flame..Unless I'm not understanding something your saying?
Someday the mountain might getem but the law nvr will. http://www.youtube.com/watch?v=SP5EkvOGMCs

Offline OOZ662

  • Platinum Member
  • ******
  • Posts: 7019
Re: Never ending gas.
« Reply #17 on: October 28, 2009, 12:58:23 PM »
I personally have never had a fuel tank leak that later caught on fire. Never. Having a non-pierced fuel tank that's empty catch fire is expected, not just normal.
A Rook who first flew 09/26/03 at the age of 13, has been a GL in 10+ Scenarios, and was two-time Points and First Annual 68KO Cup winner of the AH Extreme Air Racing League.

Offline Sunka

  • Persona Non Grata
  • Silver Member
  • ****
  • Posts: 1774
      • http://www.327th.com/
Re: Never ending gas.
« Reply #18 on: October 28, 2009, 01:01:43 PM »
I personally have never had a fuel tank leak that later caught on fire. Never. Having a non-pierced fuel tank that's empty catch fire is expected, not just normal.
If i did not loose all my films 3 weeks ago i would post a bunch,but i have a finished movie that shows it,watch for the f6f.
http://www.youtube.com/watch?v=_vtWCHyyU0k
Someday the mountain might getem but the law nvr will. http://www.youtube.com/watch?v=SP5EkvOGMCs

Offline oneway

  • Silver Member
  • ****
  • Posts: 1385
Re: Never ending gas.
« Reply #19 on: October 28, 2009, 01:24:18 PM »
I can empty my gas can here at home and hold a lighter to the open end and not get a flame..Unless I'm not understanding something your saying?

The reason you haven't blown up is that the relative amount of oxygen in the can is low as you just emptied the can. If you were to wait for a period of time until the oxygen and fuel vapor were in the proper balance, the contents would ignite. Given the confinement of the container it more than likely would explode.

Not a good idea either way.

Offline Sunka

  • Persona Non Grata
  • Silver Member
  • ****
  • Posts: 1774
      • http://www.327th.com/
Re: Never ending gas.
« Reply #20 on: October 28, 2009, 01:29:08 PM »
The reason you haven't blown up is that the relative amount of oxygen in the can is low as you just emptied the can. If you were to wait for a period of time until the oxygen and fuel vapor were in the proper balance, the contents would ignite. Given the confinement of the container it more than likely would explode.

Not a good idea either way.
I don't agree with any of that.,except,Not a good idea either way. I can wait 1 hour or 1 week i still wont blow.Not the oxygen that needs to build up its the lack of fuel
« Last Edit: October 28, 2009, 01:30:47 PM by Sunka »
Someday the mountain might getem but the law nvr will. http://www.youtube.com/watch?v=SP5EkvOGMCs

Offline fbEagle

  • Nickel Member
  • ***
  • Posts: 584
Re: Never ending gas.
« Reply #21 on: October 28, 2009, 04:28:57 PM »
Quote
Well if he suddenly stops posting we know what happened

lol!
But to my knowladge the self sealing gas tanks should stop vapor or gas. Why are there no self sealing fuel tanks?
<Insert witty remark here>

Offline druski85

  • Silver Member
  • ****
  • Posts: 1212
Re: Never ending gas.
« Reply #22 on: October 28, 2009, 04:37:41 PM »
If it means I can endlessly cropdust my office, then I'll have to +1 this idea.   :rock

Oh, that gas.  Yea, +1 to stopping the creation of liquid matter in an empty wing tank as well.

Offline Krusty

  • Radioactive Member
  • *******
  • Posts: 26745
Re: Never ending gas.
« Reply #23 on: October 28, 2009, 05:15:33 PM »
I don't agree with any of that.,except,Not a good idea either way. I can wait 1 hour or 1 week i still wont blow.Not the oxygen that needs to build up its the lack of fuel


He's right. The reason you don't get a boom right away is because it's all vapor inside the can. There's no air, no mixing. That's why gas cans have the secondary vent to let air in as you pour gas out. If this is closed the gas won't flow out the nozzle as you dispense it.

Try taking a screwdriver (theoretically) banging a giant hole in the side of the can, twisting it around to rip up the metal and open it up a bit, wait a second, and NOW you'll get the explosion from the mouth of the can, because air has mixed inside the hole.

As for self-sealing tanks: That's modeled in AH. You can take hits and not get leaks. You take too many hits (or larger caliber hits, cannons, etc) and the self-sealing aspect of the tanks is ineffective. The tank walls swell and pinch shut tiny rifle-caliber holes. But 20mm cannon can rip out a footlong section of your tank. Can't seal that off.

Offline Sunka

  • Persona Non Grata
  • Silver Member
  • ****
  • Posts: 1774
      • http://www.327th.com/
Re: Never ending gas.
« Reply #24 on: October 28, 2009, 05:19:48 PM »
He's right. The reason you don't get a boom right away is because it's all vapor inside the can. There's no air, no mixing. That's why gas cans have the secondary vent to let air in as you pour gas out. If this is closed the gas won't flow out the nozzle as you dispense it.

Try taking a screwdriver (theoretically) banging a giant hole in the side of the can, twisting it around to rip up the metal and open it up a bit, wait a second, and NOW you'll get the explosion from the mouth of the can, because air has mixed inside the hole.


I already explained why this is not an issue I'm not going to talk in circles ..read back.
Someday the mountain might getem but the law nvr will. http://www.youtube.com/watch?v=SP5EkvOGMCs

Offline OOZ662

  • Platinum Member
  • ******
  • Posts: 7019
Re: Never ending gas.
« Reply #25 on: October 28, 2009, 05:20:43 PM »
And three of us (at least) already explained why you're wrong, but...
A Rook who first flew 09/26/03 at the age of 13, has been a GL in 10+ Scenarios, and was two-time Points and First Annual 68KO Cup winner of the AH Extreme Air Racing League.

Offline Sunka

  • Persona Non Grata
  • Silver Member
  • ****
  • Posts: 1774
      • http://www.327th.com/
Re: Never ending gas.
« Reply #26 on: October 28, 2009, 05:23:04 PM »
Three tried and failed so far, keep trying.And i beg you to read what i already posted.There would not be enough fumes left over to make such a fireball for so long.
« Last Edit: October 28, 2009, 05:25:22 PM by Sunka »
Someday the mountain might getem but the law nvr will. http://www.youtube.com/watch?v=SP5EkvOGMCs

Offline Ruler2

  • Silver Member
  • ****
  • Posts: 923
Re: Never ending gas.
« Reply #27 on: October 28, 2009, 05:25:07 PM »
I can empty my gas can here at home and hold a lighter to the open end and not get a flame...


Looks like we need another Timmy!

Offline Krusty

  • Radioactive Member
  • *******
  • Posts: 26745
Re: Never ending gas.
« Reply #28 on: October 28, 2009, 05:25:13 PM »
Sunka, you don't understand the issue. We've apparently failed at explaining why you're wrong. However, the failure may be only in our wording, not that you're wrong.

The vapors are what trail behind the plane. The air flows into the gaping hole in your wing, mixes with the trapped vapor and remaining puddles of avgas in the tank, and flows back out.

It's very plausible that the trail (a trail, any trail) would continue from the airframe even after the fuel tank was unusable.

Offline Sunka

  • Persona Non Grata
  • Silver Member
  • ****
  • Posts: 1774
      • http://www.327th.com/
Re: Never ending gas.
« Reply #29 on: October 28, 2009, 05:26:59 PM »
OK i agree if there is gas left over.But if the wing is empty then there would not be enough fumes.Err you guys are going to make me test this in real life.
Someday the mountain might getem but the law nvr will. http://www.youtube.com/watch?v=SP5EkvOGMCs