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Thread: How fast could a propeller driven piston powered plane theoretically go ?

  1. #1
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    Default How fast could a propeller driven piston powered plane theoretically go ?

    If you have all the knowledge and means to get there....what could it be ?

    Is it M0.92 ?

    I have been modelling a V-tailed "mustang" with extra hyper fast ram air effect system. It looks extremely fast. With slight v-form ie "sweep" in the wing.
    Last edited by Jukka; 03-20-2019 at 03:08 AM.

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    Default Re: How fast could a propeller driven piston powered plane theoretically go ?

    Sam Bousfield and Eric Ahlstrom introduced the DART racer in 2003.

    It was supposedly a M0.82 mover.

    https://www.tiede.fi/s3/files/styles...?itok=5ewkT35Q

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    Default Re: How fast could a propeller driven piston powered plane theoretically go ?


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    Default Re: How fast could a propeller driven piston powered plane theoretically go ?

    There are various stats in various places, but the AFS lists top speed of the Tu-95 as 925 kmh, although they don't list an associated altitude. I believe it is the fastest propellor driven machine, though obviously not piston powered.

    Would be very interesting to see what the Bear, Voodoo, or Strega could achieve at altitude today.

    Per Air & Space:

    https://www.airspacemag.com/history-...52/?c=y&page=2

    In this article, they quote Yeager as saying, in a P-51 he achieved .81 mach in a vertical dive from max altitude. Even with mods, I expect it would be tough to get there in level flight. Yeager said Hoover was along side in a P-47 at mach .805. That I'll admit, sounds like a Yeager-y story.

  5. #5

    Default Re: How fast could a propeller driven piston powered plane theoretically go ?

    Technical paper on the DART racer
    http://aero-comlab.stanford.edu/Pape...0-4341-839.pdf
    "young" Thomas

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    Default Re: How fast could a propeller driven piston powered plane theoretically go ?

    Do you think it would have to be a pusher ?
    Last edited by Jukka; 03-20-2019 at 11:37 PM. Reason: data added

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    Default Re: How fast could a propeller driven piston powered plane theoretically go ?

    Does anyone have CAD file (dwg block) of a sideview of a Merlin engine ? https://en.wikipedia.org/wiki/Rolls-Royce_Merlin
    Last edited by Jukka; 03-20-2019 at 11:43 PM.

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    Default Re: How fast could a propeller driven piston powered plane theoretically go ?

    Sam Bousfield and supersonic prop claim; http://www.eaavideo.org/detail/video...-sam-bousfield

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    Default Re: How fast could a propeller driven piston powered plane theoretically go ?

    I find it very hard to draw a racer in the size of a Heston J.5 ( same length as Thunder Mustang ) using a 225 cm long engine (Merlin 61). This has now space for 300 gallons of fuel.

    Last edited by Jukka; 03-22-2019 at 06:37 AM.

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    Default Re: How fast could a propeller driven piston powered plane theoretically go ?

    FAT MAMA is 80 cm longer than Heston J.5.

    Herbie's song Fat Mama; https://www.youtube.com/watch?v=iEtiaSSRGSE


    The good thing about design above is the 290 gallons of fuel and ability to have a 4 metre dia prop.

    It can also be made light and transonic in speed.

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