Got a bit carried away with other stuff to flesh out the article, so it's also a commercial crew update, but mainly on DCSShttp://www.nasaspaceflight.com/2014/05/dream-chaser-wind-tunnel-tests-ccicap-milestone/
I think if we were to ask "NASA" which of the Commercial Crew vehicles they'd prefer to fly, it would be the Dream Chaser. Nothing against the two capsules, just that landing on a runway is so much more civilized.
Nothing against the two capsules, just that landing on a runway is so much more civilized.
Quote from: docmordrid on 05/14/2014 06:13 pm@jeff_foustJohn Roth, Sierra Nevada Corp.: working w/U. Maryland, have a full-scale Dream Chaser model in their neutral buoyancy lab to simulate EVAs.10:40am - 14 May 14So these pics are of full scale pressure vessel: http://forum.nasaspaceflight.com/index.php?topic=29416.msg1189153#msg1189153
@jeff_foustJohn Roth, Sierra Nevada Corp.: working w/U. Maryland, have a full-scale Dream Chaser model in their neutral buoyancy lab to simulate EVAs.10:40am - 14 May 14
Quote from: Chris Bergin on 05/20/2014 02:55 amGot a bit carried away with other stuff to flesh out the article, so it's also a commercial crew update, but mainly on DCSShttp://www.nasaspaceflight.com/2014/05/dream-chaser-wind-tunnel-tests-ccicap-milestone/Delta Cryogenic Second Stage?
Quote from: Chris Bergin on 05/20/2014 02:55 amGot a bit carried away with other stuff to flesh out the article, so it's also a commercial crew update, but mainly on DCSShttp://www.nasaspaceflight.com/2014/05/dream-chaser-wind-tunnel-tests-ccicap-milestone/Great article Chris! I liked the phrase "Californian tumble"... sounds like a new dance step...
A LOVELY article. Shared to social media... [1]GO Dream Chaser!1- say, reader, have YOU shared some awesome NSF articles with your circle lately??... it's good for the site, and it's good for Space in general... propagate good info and drive out the bad.
SNC/VG are switching from HTPB to polyamide for the hybrid motors on SpaceShipTwo. I wonder if this will have any impact on the hybrid motors on DC.http://www.nbcnews.com/storyline/virgin-voyage/virgin-galactic-makes-switch-spaceshiptwos-rocket-motor-n113216
Because rumor has it the HTPB-based SS2 motors had vibration and/or performance issues, and best guess is the DC motors are similar in size. DC has a carbon composite structure like SS2, and so could have similar vibration tolerances.On the other hand SNC has already passed CC payment milestones for HTPB motor demonstrations. If these were instrumented for vibration, then there's no cause for concern...