Into The Unknown
by Don Dwiggins
Golden Gate Books, 1971
Shuttle Program at Astronautix
Image credit: McDonnell Douglas
Image source: Numbers Station
S-71-20741
Category: MDAC B
Mission Profile
MDAC Orbiter
MDAC Canard Booster
MDAC Orbiter
MDAC Phase B
D4C 77860
Shuttle Program at Astronautix
Image credit; McDonnell Douglas
Image source: Numbers Station
MDAC Phase B
Shuttle Program at Astronautix
Image credit: McDonnell Douglas
Image source: Stellar Views
numbers station 
