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Pratt & Whitney R-4360-20 first start

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  • Pratt & Whitney R-4360-20 first start

    "Here is a first start after overhaul of a 4360. 28 cylinders, 7 magneto's, 56 spark plugs. This engine will go on a Corsair when finished.

    Below, you will find a great test stand video of the Pratt & Whitney 4360 Wasp engine introduced in 1944. Basically, the engine was 28-cylinder four-row air cooled radial engine. Each row of pistons was slightly offset from the previous, forming a semi-helical arrangement to facilitate efficient airflow cooling of the successive rows of cylinders, with the spiraled cylinder setup inspiring the engine's "corncob" nickname. A mechanical supercharger geared at 6.374:1 ratio to engine speed provided forced induction, while the propeller was geared at 0.375:1 so that the tips did not reach inefficient speeds. Initially, it developed 3,000 horsepower, later models gave 3,500 horsepower. The 4360 powered the B-50, successor to the B-29 and later the B-36, to name a few. Although reliable in flight, the Wasp Major was maintenance-intensive. Improper starting technique could foul all 56 spark plugs which would require hours to clean or replace. As with most piston aircraft engines of the era, the of the Wasp Major was about 600 hours when used in commercial service."
    Here is a first start after overhaul of a 4360. 28 cylinders, 7 magneto's, 56 spark plugs. This engine will go on a Corsair when finished.
    Last edited by SuperCPA; 07-17-2012, 09:58 AM.
    '06 STS-V '86 GN

  • #2
    Fuck being anywhere near that thing. With my luck, it would suck my skinny as in a jiffy.

    I hope that guy was zoomed in because he looked close as hell.
    Originally posted by Cmarsh93z
    Don't Fuck with DFWmustangs...the most powerfull gang I have ever been a member of.

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    • #3
      I search for shit like this and "diesel runaways" all the time on youtube. Good find...

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      • #4
        Can you imagine walking into the blade? I cannot for the life of me figure out how that cheerleader did that last year? Was she blind AND deaf?

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        • #5
          3,500hp, holy shit.
          "When the people find that they can vote themselves money, that will herald the end of the republic." -Benjamin Franklin
          "A democracy will continue to exist up until the time that voters discover that they can vote themselves generous gifts from the public treasury." -Alexander Fraser Tytler

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          • #6
            That's bad ass

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            • #7
              Originally posted by line-em-up View Post
              Can you imagine walking into the blade? I cannot for the life of me figure out how that cheerleader did that last year? Was she blind AND deaf?
              engine was off, blade still spinning IIRC.
              Originally posted by PGreenCobra
              I can't get over the fact that you get to go live the rest of your life, knowing that someone made a Halloween costume out of you. LMAO!!
              Originally posted by Trip McNeely
              Originally posted by dsrtuckteezy
              dont downshift!!
              Go do a whooly in front of a Peterbilt.

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              • #8
                Cool, but that was an oil leaking/oil burning SOB.... each engine had an 80 gallon oil tank. Wow.

                mardyn

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                • #9
                  Originally posted by CJ View Post
                  3,500hp, holy shit.
                  There were advanced versions that made 4300hp.

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                  • #10
                    Originally posted by white trash wagon View Post
                    There were advanced versions that made 4300hp.
                    fuck ls1 swaps.
                    "When the people find that they can vote themselves money, that will herald the end of the republic." -Benjamin Franklin
                    "A democracy will continue to exist up until the time that voters discover that they can vote themselves generous gifts from the public treasury." -Alexander Fraser Tytler

                    Comment

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