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Blue Origin Test



 
 
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  #1  
Old July 19th 18, 10:14 AM posted to sci.space.policy
Fred J. McCall[_3_]
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Default Blue Origin Test

Blue Origin just successfully tested the escape system for their
manned capsule. They launched on a New Shepard rocket and then did a
high altitude escape maneuver with the capsule. The capsule hit
around 10g during the escape.


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"The reasonable man adapts himself to the world; the unreasonable
man persists in trying to adapt the world to himself. Therefore,
all progress depends on the unreasonable man."
--George Bernard Shaw
  #2  
Old July 19th 18, 11:22 PM posted to sci.space.policy
jacob navia
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Default Blue Origin Test

Le 19/07/2018 Ã* 11:14, Fred J. McCall a écritÂ*:
Blue Origin just successfully tested the escape system for their
manned capsule. They launched on a New Shepard rocket and then did a
high altitude escape maneuver with the capsule. The capsule hit
around 10g during the escape.



A typical person can handle about 5 G (49 m/s2) (meaning some people
might pass out when riding a higher-g roller coaster, which in some
cases exceeds this point) before losing consciousness, but through the
combination of special g-suits and efforts to strain muscles—both of
which act to force blood back into the brain—modern pilots can typically
handle a sustained 9 G (88 m/s2).

https://www.aviationcv.com/aviation-blog/2016/2721

At 10g this escape looks quite dangerous to me... specially for
civilians. But anyway, they paid for it isn't it? They would get quite a
lot of "g" sor their money.

  #3  
Old July 20th 18, 04:43 AM posted to sci.space.policy
Fred J. McCall[_3_]
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Default Blue Origin Test

jacob navia wrote on Fri, 20 Jul 2018
00:22:15 +0200:

Le 19/07/2018 à 11:14, Fred J. McCall a écrit*:

Blue Origin just successfully tested the escape system for their
manned capsule. They launched on a New Shepard rocket and then did a
high altitude escape maneuver with the capsule. The capsule hit
around 10g during the escape.


A typical person can handle about 5 G (49 m/s2) (meaning some people
might pass out when riding a higher-g roller coaster, which in some
cases exceeds this point) before losing consciousness, but through the
combination of special g-suits and efforts to strain muscles—both of
which act to force blood back into the brain—modern pilots can typically
handle a sustained 9 G (88 m/s2).

https://www.aviationcv.com/aviation-blog/2016/2721


That's all very nice, but nobody said anything about SUSTAINED 10g.
Humans can take 'jolt' much higher than 10g with no physical damage.


At 10g this escape looks quite dangerous to me... specially for
civilians.


Not particularly, no. And the choice is generally 'get away quick or
die' in an emergency.


But anyway, they paid for it isn't it? They would get quite a
lot of "g" sor their money.


No. Emergency escape systems are only used in case of, well,
EMERGENCY. Go look at the sum total of all manned launches and count
the number of times an emergency escape system was actually used. The
Soyuz TM peaked at 12g during reentry for a fairly long duration and
that was ROUTINE.


--
"Insisting on perfect safety is for people who don't have the balls to
live in the real world."
-- Mary Shafer, NASA Dryden
  #4  
Old July 20th 18, 02:59 PM posted to sci.space.policy
Jeff Findley[_6_]
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Posts: 2,307
Default Blue Origin Test

In article , says...

Le 19/07/2018 à 11:14, Fred J. McCall a écrit*:
Blue Origin just successfully tested the escape system for their
manned capsule. They launched on a New Shepard rocket and then did a
high altitude escape maneuver with the capsule. The capsule hit
around 10g during the escape.



A typical person can handle about 5 G (49 m/s2) (meaning some people
might pass out when riding a higher-g roller coaster, which in some
cases exceeds this point) before losing consciousness, but through the
combination of special g-suits and efforts to strain muscles?both of
which act to force blood back into the brain?modern pilots can typically
handle a sustained 9 G (88 m/s2).

https://www.aviationcv.com/aviation-blog/2016/2721

An abort isn't "sustained".

At 10g this escape looks quite dangerous to me... specially for
civilians. But anyway, they paid for it isn't it? They would get quite a
lot of "g" sor their money.


The alternative is near certain death. Also, participants are informed
of the risk prior to signing the consent / waiver form.

Jeff

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