+ Reply to Thread
Results 1 to 10 of 10

Thread: wwII aviation: how do self-sealing fuel tanks work?

  1. #1
    asshat Gil Bang is probably pretty witty. or good at photoshop. or porn. Gil Bang is probably pretty witty. or good at photoshop. or porn. Gil Bang is probably pretty witty. or good at photoshop. or porn. Gil Bang is probably pretty witty. or good at photoshop. or porn. Gil Bang is probably pretty witty. or good at photoshop. or porn. Gil Bang is probably pretty witty. or good at photoshop. or porn. Gil Bang is probably pretty witty. or good at photoshop. or porn. Gil Bang is probably pretty witty. or good at photoshop. or porn. Gil Bang is probably pretty witty. or good at photoshop. or porn. Gil Bang is probably pretty witty. or good at photoshop. or porn. Gil Bang is probably pretty witty. or good at photoshop. or porn. Gil Bang's Avatar
    Join Date
    Jun 2009
    Location
    Pac10'sville
    Posts
    8,889

    wwII aviation: how do self-sealing fuel tanks work?

    So I'm interested in WWII aircraft. The US advantage over the Japanese (one of them anyway) was that our fighters had "self sealing" fuel tanks. How did that work?

  2. #2
    asshat Mr. Peabody slams and goes hard. Mr. Peabody slams and goes hard. Mr. Peabody slams and goes hard. Mr. Peabody slams and goes hard. Mr. Peabody slams and goes hard. Mr. Peabody slams and goes hard. Mr. Peabody slams and goes hard. Mr. Peabody slams and goes hard. Mr. Peabody slams and goes hard. Mr. Peabody slams and goes hard. Mr. Peabody slams and goes hard. Mr. Peabody's Avatar
    Join Date
    Feb 2008
    Location
    BOOMER SOONER
    Posts
    2,608
    Good question. I love WW II aircraft as well.

    From Wiki


    In aviation, self-sealing fuel tank is a fuel tank technology in wide use since World War II that prevents fuel tanks primarily on aircraft from leaking fuel and igniting after being damaged by enemy fire.

    Self-sealing tanks have two layers of rubber, one of vulcanized rubber and one of untreated rubber that can absorb oil and expand when wet. When a fuel tank is punctured, the fuel will spill on to the layers, causing the swelling of the untreated layer, thus sealing the puncture.


    Off Topic, I love the series Dog Fights especially the WW II aircraft episodes.

  3. #3
    I believe it is done via a rubber liner that expands when in contact with oil/gas. So when a hole is created, the liner will close off as the fuel pours through. Someone else I'm sure can get a more technically correct explanation.

  4. #4
    Overachiever Quasimofo Shaggy Gold Club Quasimofo Shaggy Gold Club Quasimofo Shaggy Gold Club Quasimofo Shaggy Gold Club Quasimofo Shaggy Gold Club Quasimofo Shaggy Gold Club Quasimofo Shaggy Gold Club Quasimofo Shaggy Gold Club Quasimofo Shaggy Gold Club Quasimofo Shaggy Gold Club Quasimofo Shaggy Gold Club Quasimofo's Avatar
    Join Date
    Jan 2009
    Location
    Underachieving
    Posts
    7,562
    Two pilots perfected this method. Major Anthony Nelson stumbled upon the secret one day after a rough landing. He shared his secret, somewhat by accident, with his friend, Major Roger Healey. The rest is history.

    In the US, Goodyear chemist James Merrill was awarded a patent in 1941 for refining and successfully testing his method for manufacturing self-sealing tanks using a two-layer system of rubber compounds encased in a metal outer shell or the wing lining of the aircraft.[3] In 1942, he received a War Production Board citation from President Roosevelt and the Goodyear tanks were subsequently placed in service in Goodyear-produced Corsair fighters, as well as other aircraft. By 1942 Fireproof Tanks had developed the first flexible fuel bladders as range extender tanks for the MkIX Spitfire. These tanks were flexible containers, made of a laminated self-sealing material like vulcanized rubber and with as few seams as possible to minimise leak paths.

    As early tests showed that impact could overpressure a fuel tank, the self-sealing fuel cell is suspended, allowing it to absorb shocks without rupture. U.S. Navy fuel tanks during the war were able to withstand .50 caliber (12.7 mm) bullets and, on occasion, 20 mm cannon shells.

    Not all fighters were fitted with the relatively new invention; self-sealing tanks tended to be heavier with lower capacity than non-sealed tanks. Nonetheless, aircraft that were fitted with self-sealing tanks regularly took more punishment than those without. Combat experience in the Pacific showed that the heavily protected American aircraft could sustain far more damage than the lightly armored Japanese designs without self-sealing fuel tanks (for instance, the Mitsubishi Zero).
    http://en.wikipedia.org/wiki/Self-sealing_fuel_tank

  5. #5
    asshat Gil Bang is probably pretty witty. or good at photoshop. or porn. Gil Bang is probably pretty witty. or good at photoshop. or porn. Gil Bang is probably pretty witty. or good at photoshop. or porn. Gil Bang is probably pretty witty. or good at photoshop. or porn. Gil Bang is probably pretty witty. or good at photoshop. or porn. Gil Bang is probably pretty witty. or good at photoshop. or porn. Gil Bang is probably pretty witty. or good at photoshop. or porn. Gil Bang is probably pretty witty. or good at photoshop. or porn. Gil Bang is probably pretty witty. or good at photoshop. or porn. Gil Bang is probably pretty witty. or good at photoshop. or porn. Gil Bang is probably pretty witty. or good at photoshop. or porn. Gil Bang's Avatar
    Join Date
    Jun 2009
    Location
    Pac10'sville
    Posts
    8,889
    Quote Originally Posted by Quasimofo View Post
    Two pilots perfected this method. Major Anthony Nelson stumbled upon the secret one day after a rough landing. He shared his secret, somewhat by accident, with his friend, Major Roger Healey. The rest is history.



    http://en.wikipedia.org/wiki/Self-sealing_fuel_tank

  6. #6
    asshat NCAAFBALLROX Shaggy Gold Club NCAAFBALLROX Shaggy Gold Club NCAAFBALLROX Shaggy Gold Club NCAAFBALLROX Shaggy Gold Club NCAAFBALLROX Shaggy Gold Club NCAAFBALLROX Shaggy Gold Club NCAAFBALLROX Shaggy Gold Club NCAAFBALLROX Shaggy Gold Club NCAAFBALLROX Shaggy Gold Club NCAAFBALLROX Shaggy Gold Club NCAAFBALLROX Shaggy Gold Club NCAAFBALLROX's Avatar
    Join Date
    Dec 2007
    Location
    Jesus built my car. Its a love affair. Mainly Jesus and my hot rod.
    Posts
    25,804
    Quote Originally Posted by Gil Bang View Post

    Well $#@! me not, I never noticed that Healy was Army.

  7. #7
    asshat jose_medina_de_jesus can play the whole course with a 4 iron. At night. jose_medina_de_jesus can play the whole course with a 4 iron. At night. jose_medina_de_jesus can play the whole course with a 4 iron. At night. jose_medina_de_jesus can play the whole course with a 4 iron. At night. jose_medina_de_jesus can play the whole course with a 4 iron. At night. jose_medina_de_jesus can play the whole course with a 4 iron. At night. jose_medina_de_jesus can play the whole course with a 4 iron. At night. jose_medina_de_jesus can play the whole course with a 4 iron. At night. jose_medina_de_jesus can play the whole course with a 4 iron. At night. jose_medina_de_jesus can play the whole course with a 4 iron. At night. jose_medina_de_jesus can play the whole course with a 4 iron. At night. jose_medina_de_jesus's Avatar
    Join Date
    Apr 2010
    Location
    sucking cox n dixs
    Posts
    5,545
    think of the wing as a balloon with multiple panels and a rubber seal that is pumped in between those panels on the seams. when the ballon as the balloon ascends to greater altitudes, the pressure inside the wing increases and causes those panels to press more firmly onto each other thereby tightening the seal on the tank. those old aircraft leak gallons and gallons of fuel while on the ground. even modern era fighters, ie f18, harrier, f14, f15 also tend to leak profusely while on the ground. but once they get off the ground they seal up like a virgins panties.

  8. #8
    At least some modern fighters have foam in the tanks so that fuel/air vapors aren't set off by taking a hit. Also most fuel plumbing is routed inside the tanks. (F-15 anyway). Speaking of F-15s, the older they got, they would leak on the ground when fueled w/ Navy JP5 instead of AF JP4 fuel...the books said it was compatable and the newer aircraft did Ok, but the older A and B models would seep at the wingroots.

  9. #9
    asshat Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog grows his own roses Snow Dog's Avatar
    Join Date
    Jan 2008
    Location
    Somewhere around Barstow on the edge of the desert
    Posts
    15,596
    Quote Originally Posted by NCAAFBALLROX View Post
    Well $#@! me not, I never noticed that Healy was Army.
    Corps of Engineers, no less.

  10. #10
    asshat Mother Mopar slams and goes hard. Mother Mopar slams and goes hard. Mother Mopar slams and goes hard. Mother Mopar slams and goes hard. Mother Mopar slams and goes hard. Mother Mopar slams and goes hard. Mother Mopar slams and goes hard. Mother Mopar slams and goes hard. Mother Mopar slams and goes hard. Mother Mopar slams and goes hard. Mother Mopar slams and goes hard.
    Join Date
    Nov 2010
    Location
    Middle of the Mojave
    Posts
    1,968
    Quote Originally Posted by Cool Hand View Post
    At least some modern fighters have foam in the tanks so that fuel/air vapors aren't set off by taking a hit.
    C-5's have a system called Duer's and C-17's use a system called OBIGGS, basically the same as you stated above but with a twist. The system(s) generates nitrigen via compressors, on board and then its pumped into the fuel tanks/main bodies and as a result fuel volitality is greatly reduced. Enough to take small arms fire and keep flying, obviously taking a hit from a SAM is out of the question. Pretty cool actually but a PITA to work on.

+ Reply to Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

Home .. Advertise .. ShaggyShop .. PanchoChat
Football .. Basketball .. Baseball .. Other Sports .. RC Didn't Offer .. Gamboool
Varsity .. Hole in the Wall .. PCL .. Einstein's .. Nasty's .. GM Steakhouse .. NSAA
Bada Bing .. Can you help me with this? .. Shagslist .. Cloak Room .. Classics .. Bellmont