DEPARTMENT OF THE NAVY
NAVAL AIR SYSTEMS COMMAND
NAVAL AIR SYSTEMS COMMAND HEADQUARTERS
WASHINGTON, DC 20361

IN REPLY REFER TO
AIR- 07D3
July 1983

MEMORANDUM

From: AIR-07D3 To: AIR-02E2

Subj : FOIA request, concerning seabased minelaying ASW aircraft (P6M Seamaster)

1. Subject request raised a question about the number of manufacturers involved in the. design competition for subject aircraft. By Bureau of Aeronautics letter AC-56, 09916 of 30 July 1951, the Navy invited twelve manufacturers to submit design proposals for subject aircraft. The twelve were:

Martin
CONVAIR
Bellanca
Chance Vought
Douglas
Edo
Fairchild
Grumman
McDonnell
Ryan
Sikorsky
Boeing

Only Martin and CONVAIR submitted proposals. The other ten manufacturers declined the Navy's invitation.

2. During the time that the competition for subject aircraft was in progress, there was a competition for a landbased minelaying ASW aircraft also in progress. Several more manufacturers were competing for the landbased design than for the seabased design. It is important not to confuse these two when reviewing their histories. Only Martin and CONVAIR submitted proposals for subject competition.

OR AS-04506 High performance seaplane minelayer
See: BUAER ltr AER-EV-1
                          11 Apr 1952
                          Evaluation Division file folder "Proposals 1951-1953"

/s/
Wm. J. ARMSTRONG
By Direction