Sister blog of Physicists of the Caribbean in which I babble about non-astronomy stuff, because everyone needs a hobby

Saturday, 23 January 2016

A proper re-usable rocket


Yes, OK, it's not an orbital vehicle, but it is a re-useable rocket that lands vertically. And that's pretty neat. Well, really neat. Awesome, even.

And this time their video wisely does not include any CGI that looks like it belongs in 1997. No CGI at all, in fact.

Originally shared by Friends of NASA

Launch. Land. Repeat. | New Shepard Does It Again! | Blue Origin
"Blue Origin's vision: Millions of people living and working in space. You can’t get there by throwing the hardware away."
"Watch the re-flight!"

"The very same New Shepard booster that flew above the Karman line and then landed vertically at its launch site last November has now flown and landed again, demonstrating reuse. This time, New Shepard reached an apogee of 333,582 feet (101.7 kilometers) before both capsule and booster gently returned to Earth for recovery and reuse."

"Data from the November mission matched our preflight predictions closely, which made preparations for today’s re-flight relatively straightforward. The team replaced the crew capsule parachutes, replaced the pyro igniters, conducted functional and avionics checkouts, and made several software improvements, including a noteworthy one. Rather than the vehicle translating to land at the exact center of the pad, it now initially targets the center, but then sets down at a position of convenience on the pad, prioritizing vehicle attitude ahead of precise lateral positioning. It’s like a pilot lining up a plane with the centerline of the runway. If the plane is a few feet off center as you get close, you don’t swerve at the last minute to ensure hitting the exact mid-point. You just land a few feet left or right of the centerline. Our Monte Carlo sims of New Shepard landings show this new strategy increases margins, improving the vehicle’s ability to reject disturbances created by low-altitude winds."

"Though wings and parachutes have their adherents and their advantages, I’m a huge fan of rocket-powered vertical landing. Why? Because—to achieve our vision of millions of people living and working in space—we will need to build very large rocket boosters. And the vertical landing architecture scales extraordinarily well. When you do a vertical landing, you’re solving the classic inverted pendulum problem, and the inverted pendulum problem gets a bit easier as the pendulum gets a bit bigger. Try balancing a pencil on the tip of your finger. Now try it with a broomstick. The broomstick is simpler because its greater moment of inertia makes it easier to balance. We solved the inverted pendulum problem on New Shepard with an engine that dynamically gimbals to balance the vehicle as it descends."

"And since New Shepard is the smallest booster we will ever build, this carefully choreographed dance atop our plume will just get easier from here. We’re already more than three years into development of our first orbital vehicle. Though it will be the small vehicle in our orbital family, it’s still many times larger than New Shepard. I hope to share details about this first orbital vehicle this year."
- Jeff Bezos (Yes...of Amazon.com fame)

Credit: Blue Origin
Release Date: January 22, 2016

Blue Origin
Amazon.com
Commercial Spaceflight Federation

#NASA #Space #BlueOrigin #Astronauts #Rocket #Exploration
#Human #NewShepard #Vehicle #Capsule #JeffBezos #Technology #Propulsion #Engines #Engineering #Earth #USA #UnitedStates #Spaceflight #Texas #Launch #STEM #Education #SpaceTourism #NewSpace #Commercial #HD #Video

2 comments:

  1. I'm not sure I understand it properly.  Not only is it not an orbital vehicle, it does not even seem to be compatible with orbital launches.  Is it a pure tourist vehicle?  Go up, parachute down?  Or does Blue Origin plan some sort of high-altitude launch platforms, and such rockets shuttling up and down between these and ground?

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  2. I don't think this is ever designed to go into orbit, it's a pure tourist vehicle. Looks like the capsule lands with parachutes while the rocket lands itself. It says in the links that they're planning a larger orbital version to be announced later in the year.

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