First I've ever heard of centrifuged propellant causing a shutdown. This has probably happened before somewhere though, does anyone know?
Quote from: tigerade on 09/29/2013 07:20 pmJeff Foust @jeff_foust 44sMusk: attempted relight of upper stage, encountered anomaly. Understand what it is and will fix before next flight. #falcon9Re-light is a must for the SES flight. Wonder if this will delay it.
Jeff Foust @jeff_foust 44sMusk: attempted relight of upper stage, encountered anomaly. Understand what it is and will fix before next flight. #falcon9
Is it? Can't they work out a trajectory with a longer burn of the second stage?
Quote from: douglas100 on 09/29/2013 07:25 pmQuote from: tigerade on 09/29/2013 07:20 pmJeff Foust @jeff_foust 44sMusk: attempted relight of upper stage, encountered anomaly. Understand what it is and will fix before next flight. #falcon9Re-light is a must for the SES flight. Wonder if this will delay it.F9 flight 1 had a similar issue, but it was figures out by the next flight.
Jeff Foust @jeff_foust nowMusk: will next attempt recovery on 4th F9 v1.1 launch, of CRS-3. That vehicle may also have landing legs. #falcon9
Don't suppose they are spin stabilizing S1 for descent, are they?
Quote from: Skylab on 09/29/2013 07:37 pmJeff Foust @jeff_foust nowMusk: will next attempt recovery on 4th F9 v1.1 launch, of CRS-3. That vehicle may also have landing legs. #falcon9Wont they need to do more Grasshopper flights first to get the landing system down? There is a big difference between landing in the middle of the ocean and an exact spot on land.
Quote from: Ronsmytheiii on 09/29/2013 07:39 pmQuote from: Skylab on 09/29/2013 07:37 pmJeff Foust @jeff_foust nowMusk: will next attempt recovery on 4th F9 v1.1 launch, of CRS-3. That vehicle may also have landing legs. #falcon9Wont they need to do more Grasshopper flights first to get the landing system down? There is a big difference between landing in the middle of the ocean and an exact spot on land.Adding landing legs does not mean they will land it on land - they might just add them to test the shape of the stage, the diffirent center of gravity. I doubt they'll do full boostback - need to build a landing area for that first anyway.So, same flight as today, just with added legs / leg deployment just above the ocean is a possibility.
Musk: won't hold up CRS-3 launch to install legs on F9. Schedule driven by upgrades to Dragon. Probably Feb '14 launch. #falcon9