Type Spec 149: alternatives to the Grumman A-6

[overscan (PaulMM)]

Douglas D-725 was a lightly modified A-4 submitted to TS-149

Maybe as an non-responsive alternate, but the Douglas proposal that met the requirement was its 715.

Yes, as Tony Buttler outlined in his book and I posted here, Douglas submitted two proposals:

https://www.secretprojects.co.uk/forum/index.php/topic,8491.msg112387.html#msg112387

 

[ivran]

Any data abut of Douglas D-751 and his conections whith model D-715?

 

[overscan (PaulMM)]

Any data abut of Douglas D-751 and his conections whith model D-715?

My guess is a simple typo on Allyson's part, transposing 715 to 751.

 

[allysonca]

HEY ! I am blond you know.. LOL 715 Works......

 

[acegeek9992]

From Tony Buttler's American Secret Projects: Bombers, Attack Aircraft and ASW

Bell - V/STOL design (no further info)
Boeing 806-1A single engine, top inlet, supersonic design (3 view, description)
Boeing 807 - turboprop submission. (No further info)
Douglas 715 - as described above. (2 model photos, 3 view, description)
Douglas 725 - A4D-3 Skyhawk with new nose and modified cockpit (3 view, artwork, description)
Grumman G-128 (built as the A2F/A-6 Intruder)
Lockheed CL-364-2 (3 view, description)
Martin 345, 346 (no further info)
North American (no further info)
Vought V-416/A/B/C (3 views, artworks, descriptions)

From the reissue of American Secret Projects 4 - Bombers, Attack and Anti-Submarine Aircraft 1945-1974:
Bell D-2001 - V/STOL (three view and description)
Boeing 807 - turboprop submission (three view, artwork, description)
Martin 345, 346 (three view, artwork, and description)
North American Vigilante (not to be confused with the A-5 Vigilante) (three view, artwork, and description)

 

[hesham]

3-Douglas A-4J Model- ----?.

I am sure this design was submitted to it ?!.

 

[Scott Kenny]

Indeed, very unorthodox arrangement in which the refuelling probe is mounted on an engine nacelle, not fuselage.

Piotr

Would have made guiding the probe into the basket "interesting" to say the least...

 

[ly112358]

Grumman 128F and 128M-4 configurations.

Source:

Aeroguide 15, A-6 Intruder, Linewrights 1986

G-128M, From Robert F. Dorr Book:"A-6 Intruder. Carrier-Borne Bomber"