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Beccab
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Posts posted by Beccab
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2 minutes ago, tater said:
Also, does this mean literally no "US Persons" in this refugee category have ever applied for and been denied from any other defense contractor, or is the DOJ going against all defense contractors all the time for this, or does LockMart, etc, simply hire them?
They have. Aerojet is the most recent to be sued
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24 minutes ago, OrbitalManeuvers said:
Well, this will be interesting! Not sure what the minimal capture burn would be at the optimal transfer window, but with the current TWR at Mars, a 400m/s maneuver is a 20 minute burn. And we don't have lander mass yet, or the scaled down thrust ...
That's pretty accurate, the real burn lasted nearly an hour
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2 hours ago, davidy12 said:
I Think Harrison Schmidt wanted mini versions of these guys to be loaded in a CSM and used for a far-side lunar mission
Do you have a link to that?
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13 hours ago, RCgothic said:
Apparently it was a 9-engine static fire
Where did you read that?
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4 hours ago, grawl said:
Or that they're slowly reaching the limits of reusability.
Ageing furniture and an escalating launch rate ain't working well together sometimes...
I mean, many of those are weather related. The scrub before this one for instance
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12 minutes ago, sevenperforce said:
I don't believe any vehicle has ever launched with a first-stage moveable nozzle extension, except maybe some of the earliest solid rocket ICBM designs.
Nobody actually built anything with that architecture, but it was somewhat heavily proposed during the early shuttle program for drop tank designs, such as Starclipper. The relative engine is the XLR-129
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900 m/s are to stay actually at L2, but most (all? I think) don't do that - they insert into a large halo orbit around it, like in the figure below, which has a free insertion but is dynamically unstable and requires monthly corrections in order to remain in it
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The F9 didn't launch Euclid to LEO, it injected it to an L2 transfer orbit. It has also launched payloads to GTO, L1 and lunar transfer orbits in the past
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6 hours ago, RCgothic said:
New pad for SX at Vandenberg.
Sounds like the VIF problem solved itself, lol
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Everything (ship, weather and range) is go!
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Countdown seems to be going smooth for now, we're nearly 1 hour before liftoff
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spacex stream should begin shortly
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Still no prop load, currently they're roughly 12 minutes behind schedule if they started now
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Tank farm is spooling up! T-3 hours 24 minutes till liftoff for now
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1 hour ago, tater said:
For the test flight, the window is 7am – 11am Central. Hawaii is 5 hours earlier, and the partial orbit might take ~1 hour? If they go at 7, then EDL is at night. If they go towards the end (after 10), the splashdown could be at 6am – 7am. Depends on how they want to visualize it.
It actually end at 10:05, so yeah it's most definitely at night
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They're going for it again!
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Stage sep, Mvac ignition, boostback
NASA's OSIRIS-REx
in Science & Spaceflight
Posted
I'd rather make one for our current one while we still have the chance