>>1316262Northrop Grumman is so amateurish aerospace company. It is literally being built by Scaled Composites for Stratolaunch Systems. Another Northrop Grumman subsidiary, Orbital ATK, has done orbital launches from NB-52 and Lockheed TriStar for almost 30 years.
https://www.youtube.com/watch?v=0L47cpXTzQUStratolaunch is just doing that on bigger scale. Three Pegasus rockets per flight or with a bigger rocket.