martin

  1. Antonio

    US Bombers

    North American Aircraft 1934-1998 Volume 1 Norm Avery ISBN 0-913322-05-9 North American Model NA-98X Super Strafer Early in 1944, the USAAF requested NA for an advanced B-25 development powered with Pratt&Whitney R-2800-51 engines and specially suited for the high speed strafer role with the...
  2. N

    Martin Marietta orbit-to-orbit spacecraft (1968)

    This is an orbit-to-orbit design spacecraft from the Martin Marietta corporation. I found it in a book Man's Conquest of Space by the National Geographic Society (1968). Now you know as much as I do. Does anybody know if this was an actual study or just something slapped together by the MM...
    • nyrath
    • Thread
    • martin martin marietta corporation nasa space age space race united states
    • Replies: 3
    • Forum: Secret Space Projects
  3. hesham

    Martin M-380-2 V/STOL Tilt-Wing Lift Fan Aircraft

    Hi, I know we spoke about this aircraft before,but I get a new clearer PDF and I prefer to open a new topic for it,with a clearer artist drawing. http://www.secretprojects.co.uk/forum/index.php/topic,2140.msg110711.html#msg110711
  4. Stargazer

    Martin Model 244 USAF Trainer (NAA T-28 competitor)

    The Martin Model 244 was a trainer airplane design submitted to the U. S. Air Force's MX-1019 specification, which spawned no less than 28 submissions from 14 companies, and was won by the North American XT-28, with the Douglas XT-30 considered as a backup solution in case the T-28 proved...
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