Information on Bolchovitinov record plane?

Discussion in 'Engineering Retrospective' started by HoHun, Dec 2, 2004.

  1. HoHun

    HoHun FH Beta Tester

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    Hi everyone,

    I'm looking for information on a Bolchovitinov plane which achieved an international record under the designation DB-A or DB-4 (perhaps this was confused with the Ilyushin DB-4).

    The Bolchovitinov aircraft was powered by 4 x M-38 @ 860 hp each and built as 1 bomber and 11 - 12 civil aircraft. It seems to have been a very large aircraft at the time (1936).

    Do you have any links for me? Thanks in advance! :)

    Regards,

    Henning (HoHun)
     
  2. hardy

    hardy Well-Known Member

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    Are u able to translate text from Russian? :)
     
  3. rgreat

    rgreat FH Developer

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  4. hardy

    hardy Well-Known Member

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  5. HoHun

    HoHun FH Beta Tester

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    Hi Rgreat,

    >http://www.airwar.ru/enc/bww1/dba.html

    Thanks a lot! :) With the help of www.worldlingo.com, I've managed to make sense of most of it (I believe).

    The requirements were quite ambitious: 320 km/h top speed, 5000 kg maximum bomb load and 4000 km range with a 1000 kg bomb load!

    For comparison: The requirements for the B-17 were 354 km/h top speed, 3220 km range, 907 kg bomb load.

    What I've failed to understand is why it never entered service as the initial problems with aileron control etc. seem to have been fixed. Do you know the reason for that?

    Regards,

    Henning (HoHun)
     
  6. -exec-

    -exec- FH Consultant

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    imho looks like DB-A project was not ready until 1937 when it became outdated in front of coming ANT-42/TB-7.