Author Topic: Virgin Orbit preparing for busy LauncherOne future  (Read 55912 times)

Offline Lars-J

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Re: Virgin Orbit preparing for busy LauncherOne future
« Reply #200 on: 01/18/2018 07:34 AM »
Ball crawl instead of bouncy house, and color coded! Won't they need to conduct this test in a vacuum chamber? I doubt testing it during a launch would be cheaper than testing it on earth.

But they *are* testing it on Earth, just not with the fidelity you seem to want. They might also do a vacuum chamber test, but note that even that is an imperfect analog.

Offline Jim

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Re: Virgin Orbit preparing for busy LauncherOne future
« Reply #201 on: 01/18/2018 12:13 PM »

Looking back at X-15 videos, it appears that the rocket ignites before release...

No, not until after drop

Offline john smith 19

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Re: Virgin Orbit preparing for busy LauncherOne future
« Reply #202 on: 01/18/2018 03:22 PM »
When it is released from the wing, it should be decelerating until rocket engine ignites... that pushes the propellants forward to the 'top' of the tanks.  What is done to 'settle' the liquids before engine ignition?

Angle the vehicle slightly upwards. That should counter the drag going forwards and settle the propellants to the bottom of the tanks.
I got the impression, from various design studies that flight angle at separation can make a huge difference in several areas regarding loads, payload to orbit etc. Like MR control during the flight, one of those subtle-but-powerful details that can have a big impact on the feasibility  of a design.
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Offline FutureSpaceTourist

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Re: Virgin Orbit preparing for busy LauncherOne future
« Reply #203 on: 01/18/2018 05:25 PM »
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Dan Hart, Virgin Orbit: saw a tipping point several years ago in growth of smallsat capabilities. But most still relying on secondary payload opportunities.
https://twitter.com/jeff_foust/status/954053254316544001

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Hart notes first LauncherOne launch planned for the “middle of this year.”
https://twitter.com/jeff_foust/status/954053474345463809

Offline FutureSpaceTourist

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Re: Virgin Orbit preparing for busy LauncherOne future
« Reply #204 on: 01/18/2018 05:36 PM »
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Hart touts the benefits of air launch, including rapid turnaround; could potentially do a couple launches in a day.

https://twitter.com/jeff_foust/status/954055809822060550

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Hart:  our manifest in 2018 is full, half full in 2019 (with 12 launches planned), and half full also in 2020, with double the launches.

https://twitter.com/jeff_foust/status/954055997227786241

Offline imprezive

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Re: Virgin Orbit preparing for busy LauncherOne future
« Reply #205 on: 02/02/2018 02:31 PM »
Looks like they added a media gallery to their website.

https://virginorbit.com/gallery/

Offline FutureSpaceTourist

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Re: Virgin Orbit preparing for busy LauncherOne future
« Reply #206 on: 02/03/2018 06:44 AM »
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Thank you @Virgin_Orbit for the  tour of your facility and the opportunity to meet your work force. The technologies and capabilities in this enterprise are rapidly progressing and I appreciate your passion and dedication! #spacestartshere too!

https://twitter.com/smc_cc/status/959609214413897729

Offline FutureSpaceTourist

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Re: Virgin Orbit preparing for busy LauncherOne future
« Reply #207 on: 02/14/2018 06:10 AM »
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Recently, we conducted two Launch Campaign Rehearsals—full-on sessions where our technicians and engineers prepare a LauncherOne rocket as though it were launch day and the countdown clock was ticking towards t-minus-zero.
https://twitter.com/virgin_orbit/status/963486660817137669

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Propellant tanks are loaded and pressurized, software is loaded up, and our mission control crew are at their consoles, overseeing it all. These rehearsals provide a great chance to test out everything from the ground support equipment to the call-outs and procedures.
https://twitter.com/virgin_orbit/status/963486661643354114

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It is imperative that we be safe, precise, and systematic. Since we are building a system that is designed for flexibility, it bodes well that our very first launch campaign rehearsal was completed in one extended shift—and even better that our second rehearsal was 40% faster.
https://twitter.com/virgin_orbit/status/963486662423560192

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There’s still important work to do as we finish qualification of our major assemblies and systems for LauncherOne—but our first orbital flight grows closer with every test and every milestone.
https://twitter.com/virgin_orbit/status/963486663375597568

Offline Kryten

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Re: Virgin Orbit preparing for busy LauncherOne future
« Reply #208 on: 02/15/2018 10:47 PM »
https://twitter.com/jeff_foust/status/964214407306928128
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Monica Jan, Virgin Orbit: we’re planning for first orbital launch around 3rd quarter of this year. Planning 12 launches in 2019, 24 in 2020. #CDSmallSat18
https://twitter.com/jeff_foust/status/964215198000304131
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Jan: Captive carry test flight for LauncherOne coming up pretty soon.

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