The Interim HOTOL being launched from the back of an Antonov An-325. Image courtesy of BAE Systems.

https://i.redd.it/7x8q6jpz61pd1.jpeg

2 Comments

  1. I think it’s cool as all shit that the solution to the SSTO problem wasn’t ever “reusable space planes” but instead “just reuse the first stage, that’s the expensive bit”.