Image credit: Lockheed
Image source: Wikipedia
LS-2000
Tag: design study
532 Flyback Booster
Image credit: Grumman
File source: NASA NTRS
518 Flyback Booster
Image credit: Grumman
File source: NASA NTRS
619 by Craig Kavafes
Image credit: Grumman
518 Structural Arrangement
Image credit: Grumman
File source: NASA NTRS
Design 532
Image credit: Grumman
File source: NASA NTRS
Design 619
Image credit: Grumman
Image source: Numbers Station
Design 518
Image credit: Grumman
File source: NASA NTRS
