Merlin Beaufighter Climb data

Discussion in 'Flight Test Data' started by Pinin, Jul 28, 2016.

  1. Pinin

    Pinin Member

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    Anyone have info on climb data on Merlin engined Beaufighter Mk II?

    I need if possible 2 or 3 data points to make a curve fitting.
    Ideally initial climb rate, time to 10kft and time to 15kft.

    Thanks.
     
  2. Greyman

    Greyman Active Member

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    Sorry, best I can do is from the data sheet:

    8.8 minutes to 15,000 feet at (a supposed) 20, 077 pounds.
     
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  3. Pinin

    Pinin Member

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    Thanks Greyman, do you have a link to the datasheet?
     
  4. tomo pauk

    tomo pauk Creator of Interesting Threads

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    This one?

    P1020265.JPG
     
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  5. Greyman

    Greyman Active Member

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    That's the one. Sorry Pinin, was slow on the draw. Thanks Tomo Pauk.
     
  6. Pinin

    Pinin Member

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    #6 Pinin, Jul 31, 2016
    Last edited: Jul 31, 2016
    Many thanks this datasheets have more value than most books


    Edit:
    Btw i am not doubting but the 8.8 min to 15kft does not appear, just wondering if there is other interesting information there.

    Edit2
    Disregard that above edit, it seems my browser don't show the whole image, but when i save, it is complete.
     
  7. eagledad

    eagledad Member

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    Perhaps this may help

    upload_2016-8-1_12-10-47.jpeg

    Eagledad
     
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  8. Pinin

    Pinin Member

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    #8 Pinin, Aug 1, 2016
    Last edited: Aug 1, 2016
    Wow . Excellent.
    Would love something like that for all British aircraft, it is almost obscene that Axis aircraft are easier to get data from. Even Wikipedia articles are more technical complete for them.

    I have to note the rather different range values between this and the datasheet.
    Edit: okay it is probable with 376 gal normal fuel instead of 550 gal. Wonder if that also explains the rather step difference in top speed, still seems too much.
     
  9. GregP

    GregP Well-Known Member

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    Look at the data sheet. The Merlin II speed is at 21,000 feet and the Merlin III speed is at 15,000 feet. There's you major difference.
     
  10. Pinin

    Pinin Member

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    I think between the datasheet and the eagledad chart is 337 at 22kft vs 355 at 21kft isn't it?
     
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