With hindsight, it is now popular to view the Space Shuttle as a flawed concept, born out of political compromise and budget constraints. Never able to maintain anything like the original projected flight rates, hugely expensive and time consuming to maintain, the shuttle can seem like something of a developmental dead end or, as some have claimed, proof that reusability can never be economically viable.
As we enter an era where both SpaceX and Blue Origin aim to prove that Vertical Takeoff/Vertical Landing rockets can offer a sustainable route to Earth orbit and beyond, it’s interesting to look back at a reusable spaceplane concept that predated NASA’s shuttle studies and could, had things been different, have ended up being America’s national launch system from the 1970s onwards. But this is also the story of the man behind the concept, Max Hunter, a visionary who – along with contemporaries such as Philip Bono (see more on Bono’s SSTO designs) – helped define the desirability of reusable launch vehicles at a time when the world was still focused on the short-term spectaculars of Apollo’s race to the Moon. Continue reading →
Having recently read Safe Is Not An Option, I started out intending to write a review of the book but decided to expand that out to capture some thoughts on the subject at greater length.
Firstly I think its worth noting the book’s full title – Safe Is Not An Option: Overcoming The Futile Obsession With Getting Everyone Back Alive That Is Killing Our Expansion Into Space. So a pretty uncompromising introduction right there on the cover, but any serious discussion on this subject needs to confront the subject head on and challenge our preconceptions and Simberg certainly doesn’t dodge that challenge. So why the need for this seemingly iconoclastic viewpoint? Continue reading →
Since the earliest days of the space age there has been something inherently attractive in the idea of a spacecraft that could glide back after its mission and land like an aeroplane. From Sanger’s Silbervogel onwards, a succession of spaceplanes sporting various shapes and configurations have flowed from the minds of aerospace designers.
Sierra Nevada Corporation recently announced that it is preparing its Dream Chaser spaceplane for a new round of flight tests. If Dream Chaser makes it into space, it will mark the culmination of a long evolution for a wingless ‘lifting body’ shape going back over 50 years and involving both Cold War superpowers…
Few spacecraft are quite so instantly recognisable as the Shuttle Orbiter. Even in retirement the surviving craft remain iconic, resplendent in their black & white thermal tiles and boasting their trademark double-delta wing.
But the story of how the Orbiter got its familiar shape and the Space Transport System reached it’s eventual configuration is an interesting one reflecting the requirements of the US Air Force more than the needs of NASA. So why did the Air Force have such a big hand in the design and what were their plans for the Shuttle? The story starts in the Apollo era of the late 1960’s. Continue reading →