Another source
https://it.wikipedia.org/wiki/WS-125A
"Proposed projects
In 1955 , two teams were formed, with the task of furthering the study of the new bomber. These were formed by Convair and General Electric , and Lockheed and Pratt & Whitney . Subsequently, a project was presented also by Douglas .
In general, these were projects with very innovative ways. Lockheed opted for a radically new project, while the Convair decided to start from an existing model, or at least under development (special consideration were the projects of the Convair B-58 and ' XB-70 ). However, all aircraft should have been driven by a variable number of turbojets .
Characteristics
Convair Douglas Lockheed
Length (m) 51,91 48,92 48,92
Wingspan (m) 40,89 50,09 50,09
Height (m) 13,13 / 15,54 15,54 15,54
Wing area ( m² ) 464.5 464.5 464.5
Propulsion 6 x J-75/4 x XMA-1A 2 x J-75/2 x X211(?) 4 x XMA-1C
(Exhuast nozzle is 8!! ;D) (X211 is the name of turbo machinary. ;D) (Exhuast nozzle is 8!! ;D)
What is Douglas proposal?
Powered by 2 x J-75 and 2 x XNJ140E?