
Image credit: North American Rockwell
Image source: Numbers Station

Image credit: North American Rockwell
Image source: Numbers Station

Just to illustrate just how utterly massive the R-134B would have been, take a look at this illustration from a report written by Jack Swigert for The Society of Experimental Test Pilots:
Image credit: NASA
Image source: Mike Acs

Image credit: ABMA
Image source: Numbers Station

Image credit: NASA
Image source: NASA JSC

Image credit: North American Rockwell
Image source: Numbers Station

ASTRO — a manned reusable spacecraft concept developed by Douglas Aircraft.

PLAN AND ELEVATION views of ASTRO A2 vehicle. Note booster vehicle attachment at aft end.
Missiles and Rockets, September 3, 1962
Image credit: Douglas
Image source: Internet Archive


Image credit: McDonnell Douglas


Image credit: McDonnell Douglas

Image credit: McDonnell Douglas
File source: NASA NTRS

Image credit: Grumman
File source: NASA NTRS

Imaged credit: NASA
File source: NASA NTRS