North American NA-239 "SAC-Bomber" for WS-110A

[Hanse]

"B-70 contender" is North American's original WS-110A proposal

If anybody has Landis's Valkyrie book handy they could probably give him the exact dash number.

 

[Ian33]

No:7 is the North American contender for the WS-110A. I just checked the book and although it goes into detail about the floating wings method to extend range, nothing more about its designation is stated.

 

[Antonio]

nothing more about its designation is stated.

Ian, please take a look at page 30:

"The initial proposal effort for WS-110A was NA-239, called simply SAC-Bomber"

 

[Michel Van]

that is the NAA original study for Weaponsystem-110A
this design is insane one
most of time it's fly subsonic like B-52
if they got the attack order, they jettison the outer wings and jet-fuel tanks (there in size of a B-47)
now with trapezoidal wing it dash with mach 3 to enemy targets on HEF (Zip) fuel


General Le May was not impress of this "Hell This isn't a Airplane, it's a Three-ship formation!"
and NAA overwork the design to B-70

 

[Steve Pace]

What LeMay actually said is: "Back to the drawing boards. These aren't airplanes - they're three-ship formations!" -SP

 

[blackkite]

Hi! design plan 1, 2 and 3.
Trere are some difference between design plan 2 and 3.
For example......
(1)Canard shape.
(2)Jettisonable tank shape and wing span.
(3)Cockpit shape.
(4)Number of engine.(Perhaps plan 3 has 6 engines, and plan 2 has four engines)
Plan 1 and plan 2 are almost same shape, but plan 2 external wing span is large.

Source : 未完の計画機(Project Incomplete), ISBN978-4-8022-0014-1, IKAROS, 30/4/2015

http://antiflashwhiteandbarealuminum.blogspot.jp/2012/03/north-american-aviation-ws-110a.html