Lighter? I'm not so sure. Most of the reduced mass has to be added back in again for Pegasus to have aerodynamic control during stage 1 flight. The overall ben

Lighter? I'm not so sure. Most of the reduced mass has to be added back in again for Pegasus to have aerodynamic control during stage 1 flight. The overall benefits of the platform are questionable, at best, especially considering its absurd launch cost.