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Forum:	Commercial Space - Military Space
Topic:	Blue Origin New Shepard: Mission 6 (NS-6)

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Your Reply: HTML is ON UBB Code is ON Smilies Legend	[QUOTE]Originally posted by Robert Pearlman: [B]From Jeff Bezos on Twitter: <BLOCKQUOTE>[i]Dramatic New Shepard inflight escape test Tuesday, Oct 4. Live webcast starts at 10:50 a.m. EDT at blueorigin.com.[/i]</BLOCKQUOTE>[/B][/QUOTE]
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<table border=0 cellpadding=0 cellspacing=0 width="600"><TR><td bgcolor="#000000"><TABLE BORDER=0 cellpadding=4 border=0 cellspacing=1 WIDTH="100%"><TR bgcolor="#660000"><TD COLSPAN=2><CENTER>T O P I C     R E V I E W</CENTER></TD></TR><TR bgcolor="#494949"><TD valign=top>Robert Pearlman</TD><TD>Blue Origin update by Jeff Bezos <blockquote>Upcoming In-flight Escape TestOur next flight is going to be dramatic, no matter how it ends. Like Mercury, Apollo, and Soyuz, New Shepard has an escape system that can quickly propel the crew capsule to safety if a problem is detected with the booster. Our escape system, however, is configured differently from those earlier designs. They mounted the escape motor on a tower above the capsule – a "tractor" configuration – the escape motor would pull the capsule away from a failing booster. But because a capsule cannot reenter Earth's atmosphere or deploy parachutes with a tower on top, the tower, along with the escape motor, must be jettisoned on every flight – even the nominal flights. Expending an escape motor on every flight drives up costs significantly. Further, the jettison operation is itself safety critical. Failure to jettison the tower is catastrophic. The New Shepard escape motor pushes rather than pulls and is mounted underneath the capsule rather than on a tower. There is no jettison operation. On a nominal mission, the escape motor is not expended and can be flown again and again. We've already tested our pusher escape system, including many ground tests and a <a href="https://www.youtube.com/watch?v=5l8aQ3hQyVs" target="AirLock">successful pad escape test</a>, but this upcoming flight will be our toughest test yet. We'll intentionally trigger an escape in flight and at the most stressing condition: maximum dynamic pressure through transonic velocities. Capsule in-flight escape testing was last done during the Apollo program. From 1964-1966, in-flight escape tests were performed with Apollo simulator capsules using an expendable booster called the Little Joe II. We'll be doing our in-flight escape test with the same reusable New Shepard booster that we've already flown four times. About 45 seconds after liftoff at about 16,000 feet, we'll intentionally command escape. Redundant separation systems will sever the crew capsule from the booster at the same time we ignite the escape motor. You can get an idea of what will happen in this animation: <center><iframe width="400" height="225" src="https://www.youtube.com/embed/N5i-f-D_A-M?rel=0" frameborder="0" allowfullscreen>

The escape motor will vector thrust to steer the capsule to the side, out of the booster's path. The high acceleration portion of the escape lasts less than two seconds, but by then the capsule will be hundreds of feet away and diverging quickly. It will traverse twice through transonic velocities — the most difficult control region – during the acceleration burn and subsequent deceleration. The capsule will then coast, stabilized by reaction control thrusters, until it starts descending. Its three drogue parachutes will deploy near the top of its flight path, followed shortly thereafter by main parachutes.

What of the booster? It's the first ever rocket booster to fly above the Karman line into space and then land vertically upon the Earth. And it's done so multiple times. We'd really like to retire it after this test and put it in a museum. Sadly, that's not likely. This test will probably destroy the booster.

The booster was never designed to survive an in-flight escape. The capsule escape motor will slam the booster with 70,000 pounds of off-axis force delivered by searing hot exhaust. The aerodynamic shape of the vehicle quickly changes from leading with the capsule to leading with the ring fin, and this all happens at maximum dynamic pressure. Nevertheless, the booster is very robust and our Monte Carlo simulations show there's some chance we can fly through these disturbances and recover the booster.

If the booster does manage to survive this flight – its fifth – we will in fact reward it for its service with a retirement party and put it in a museum. In the more likely event that we end up sacrificing the booster in service of this test, it will still have most of its propellant on board at the time escape is triggered, and its impact with the desert floor will be most impressive.

The test should be in the first part of October, and we'll webcast it live for your viewing pleasure. Details to come.

Robert Pearlman

From Jeff Bezos on Twitter:

Dramatic New Shepard inflight escape test Tuesday, Oct 4. Live webcast starts at 10:50 a.m. EDT at blueorigin.com.

Robert Pearlman

From Jeff Bezos on Twitter:

Weather no-go for tomorrow's New Shepard #InFlightEscape test. Webcast now Wednesday [Oct. 5] at 10:45 a.m. EDT.

Robert Pearlman

collectSPACE

Blue Origin's historic New Shepard rocket museum-bound after abort test
The world's first rocket to reach space and land vertically on Earth is now museum-bound after a successful fifth flight that it was not expected to survive.
Blue Origin, the commercial spaceflight company founded by Amazon CEO Jeff Bezos, launched its history-making New Shepard rocket on a suborbital flight designed to test its crew capsule's abort system. The in-flight escape demo was critical to Blue Origin's plans to start launching paying passengers on 11-minute flights to space and back in the next couple of years.

Headshot

Now THAT was what I call a successful test!

Robert Pearlman

United Launch Alliance CEO Tory Bruno was at the New Shepard flight:

Amazing day in Texas.

cspg

It worked at T+45 seconds which leaves enough time for the parachutes to deploy and inflate.

Now if there's a booster failure at T+15, what happens to the capsule?

Robert Pearlman

The test was conducted at T+45 seconds to coincide with max Q, the point of maximum dynamic pressure, when the capsule and booster were being subjected to the most stress.

The escape system is qualified for the entire ascent, from on the pad to nominal separation from the booster. Blue Origin previously demonstrated a pad abort with the same capsule in 2012.

cspg

Thanks for reminding me of what happened 4 years ago!

Robert Pearlman

From Jeff Bezos on Twitter:

Stenciling the 7th and final tortoise onto this hardy and stalwart New Shepard capsule.

Robert Pearlman

From Reddit, a photo of the booster and capsule as seen at Blue Origin's holiday party:

Robert Pearlman

From Christian Davenport with The Washington Post on Twitter:

Blue Origin's New Shepard booster on display at MARS 2017.

(MARS, or Machine learning, home Automation, Robotics and Space exploration, is an invite-only robotics-focused annual gathering organized by Amazon.)

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