Ein Vortrag von Clayton Mowry mit zahlreichen interessanten Infoschnippseln.
https://www.youtube.com/watch?v=t1pU9hFieGE&feature=youtu.be
Zusammenfassung auf reddit:
- Blue origin = we are all of blue origin, Carl Sagan's blue Dot
- Feather is a metaphor for weightlessness.
- Move polluting industries to space; space is a way to be more sustainable. Thought this was really interesting.
- Jeff Bezos inspired by Neil Armstrong and moon landings.
- Blue Origin is 'customer focused' because of Amazon influence.
- Blue Origin is actually 17 yrs old but it was very secretive for a long time. Philosophy of talking about technology after you have done it instead of when you plan on doing it.
- 1024 employees! Facilities in Washington, Texas, building in Florida, and small office in Virginia
- Building a large scale engine production facility soon in an undisclosed location
- First New Shepard Propulsion module crashed instead of landing. (I didn't know that)
- First three flights of the 2nd booster they didn't even take the engine out! Just inspections!
- Blue origin = Tortoise not hare. Slow and steady. Step by Step.
- 30% of employees have 20+ yrs experience. 30% 10+ yrs experience 30% recent grads (wonder how this compares to spacex)
- <4% turnover. People like working at New Origin. (not quite like spaceX.....)
'- Strakes' on NG help glide on re-entry.
- NG needs to be robust to launch in 95% of weather conditions. This will help with launch delays and just generally launching on time.
- NG is so big to be robust and reusable.
- BE-4 designed for 100 reuses (not expected to actually fly that much, overdesigned on purpose)
- NG numbers a conservative estimate. Better to over-preform.
- 2 stage for commercial and LEO payloads.
- 3 stage for exploration and further afield.
- 6 landing gear so if one breaks it can still land.
- LNG (Liquid natural gas) chosen because: it is green, commercially available, 1/3 to 1/4 the cost of RP-1 (especially beneficial for tons of testing).
- BE-4 expected to get down to 30% thrust.
- NG expected to fly 2nd half of 2020.
- Launch site refurbishment of an Atlas launch pad underway at CCAFS, just outside KSC.
- 1st and 2nd stage and fairings built onsite at the new factory. (not engines)
- Giant florida factory: 750,000 sq ft, 250 million dollars, 27 months start to finish, will be done this December!
- Horizontal integration like spaceX.
- goal of 12 missions per year by three years of flying. But want to be able to fly multiple times a month if necessary. Interesting this is so little. (compared to SpaceX who are constantly talking about launching every two weeks)
- As was speculated, landing will be on a ship that is moving because it is more stable.
- Mission control at the factory.
- Ship will be autonomous!
- Undisclosed patented system to maneuver the NS in space. (WTF does this mean?)
- 5 degrees of gimbal on BE-4
- 3 stage NG could fly the Blue Moon Lander
- NG will be easier to land than NS. Because it has more mass/harder to tip over. Elon said a similar thing with ITS being easier to land.
- We intend to be 'market-leading' in terms of cost per kg.
- BE-4 was upgraded from 400k lbf to 550 at ULA's request
- On the BE-4 engine: "...it is now sitting on the test stand in Texas and getting ready to hot fire that engine in the coming weeks."
- Eutelsat is first customer for New Glenn, also OneWeb has booked 5 flights
- Landing area on ship will be 50m x 60m
- Landing burn begins at altitude of 3000 ft
Ich hohle das mal mit hier rüber, da einiges zu New Glenn drin steht und dieser Aspekt besser hier diskutiert wird als im Blue Origin Thread.
Erstmal wurde unsere Vermutung bestätigt, das das Schiff fährt, um für die Landung stabilisiert zu sein. Nice. Auf der Kehrseite: Sie haben tatsächlich Angst ums Umkippen?
Auch gut, das das Schiff Autonom unterwegs ist. Eine Sorge weniger.
Auch verlockend ist, das die Rakete sehr Robust gebaut werden soll damit sie weniger Sorgen mit dem Wetter haben und auch oft wiederverwenden können.
Da sie auf 30% drosseln können bedeutet das bei nur einem Triebwerk, das sie mit 4,3% ihres Startschubes landen können (nur eine Triebwerk in Nutzung). Könnte vielleicht für ein Schweben reichen.
Wo ich aber dann doch Sorgen bekomme.
6 Landebeine, damit sie auch heil landen, falls mal eines Bricht. Da stellen sich mir die Frage, warum das Bein brechen sollte? Sind die Beine etwa nicht überdimensioniert, wie der Rest der Rakete? Doch keine Schwebelandung und sie müssen es auch per Hoverslam machen?
Freue mich weiterhin sehr auf New Glenn, aber habe auch noch so einige Sorgen zur Landung, welche durch ihre Veröffentlichung bestätigt wurde, leider.
Grüße aus dem Schnee
