Blue Orgin New Shepard Mystery EXPLAINED!!

Finally, we get clarification on the Blue Origin New Shepard G-Force mystery! PLUS...a birthday wish!!!!
#space #nasa #spacex

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[bartskipper]

That's the best birthday message anyone could ask for. Had me in absolute stitches!!

[stretchbatchelor]

You are a galactic treasure for all birthdays pard.

[teddy.d]

That was an absolutely brilliant birthday wish, please don’t ever change…love it…😂

[nowhereman]

Fifteen Gs is about right for such an acceleration. But this pales in comparison to what the cosmonauts on Soyuz 18a experienced: 21.3 g (209 m/s²). That's right 21.3 gs. It was unintentional as the spacecraft wound up pointing downwards towards earth as the service module and orbital compartments were separating, increasing the speed. The Soviets tried claiming that both men suffered no ill effects, but rumors got out that one of them suffered debilitating injuries and couldn't fly again.

As for the couches, those have been known about for a long time. You can read up on them in the New Shepard user's guide. Gary Lai also explains them in a video where the couches can not only provide a g load reduction during an abort, but in conjunction with the crushable bottom of the capsule, provide enough cushioning that a two chute out scenario is survivable!

[alientreker]

The question is, what was the duration of the high G event? A compensating seat could mediate a sudden quick shock of excessive G but if duration exceeded a quick shock, not so much.

[pipersall]

That was a perfect hardcore metal impersonation. Thats probably what you hear when you are experiencing 15 Gs. Lol.

[johnbuchman]

15g's : ok... For what duration? If it was for more than a (small!) fraction of a second, the passengers only experiencing 8g in the wonder seats is wildly too low.

[Mike-fsbv]

Epic happy birthday there. And props to Scott Manley, I never miss his videos.

[dougmartin]

I find it hard to believe the seats are able to reduce the G-load on the passengers by half. The seats sold be able to better distribute the load and make the peak G more tolerable BUT the person in the seat is still going to be subjected to the full 15 G’s.

[avgjoe]

When they say a combat pilot blacks out around 9Gs, they don't subtract the G suit effects.
Everyone's going nite-nite long before hitting 15G. Spacex escape capsule pulled around 5G. How many Gs can a pilot survive (again a G suit is assumed).... Google says 18 Gs.
15 is pretty close
So no, not within the optimal range With a G suit, I expect someone at NASA didn't like that number.

[chrisreynolds]

You really crack me up Jordan, keep up the awesome work!

[VicariousAdventurer]

15 g shock versus sustained - time exposure is very important.

[michaelreid]

15G to 8G? Magic. One way would be to extend the time taken to travel the distance the capsule moves at maximum G, but I'm guessing this would require that the 15g load is almost instantaneous. Anything over a couple of seconds though, hmm very special seat indeed!

[peterbellamy]

Made me laugh out loud on my commute! Nailed it Angry!

[JMRsDesk]

The G suits are a non solution in spacecraft aborts since it is instantaneous. As fighter pilots turn the G's ramp up much slower than an abort and the suit has time to pressurize. ie. It would be way too slow in an abort situation; and as many people have noted below the seat could only alleviate the higher G forces for parts of a second it took for the seat, it's cushions, and or it's shock absorbers to bottom out. Sounds like the super secret inside source at Blew Organs apart is just feeding disinformation to try and sweep the body parts under a rug.

[fepatton]

The point of a launch escape system is survival, not comfort. 15g experienced for even 5-10 seconds is going to be survivable, if wildly uncomfortable.

It's important to keep in mind that the g-forces experienced by astronauts and by fighter pilots are in different orientations (sitting upright vs. lying down with the feet up), so a comparison isn't really apt. Astronauts launch on their backs because it's the most advantageous position for the various g-forces they'll encounter during launch and reentry. (Also, in that orientation a g-suit won't help.)

15g seems like a lot, even lying on your back, but the Soyuz launch escape system induces about that for 5 seconds (Google it) and it's been used a couple of times during launch emergencies with no ill effects to those onboard.

Also, if you don't know who Col. John Paul Stapp is, please Google him! His experiments with human endurance of g-forces are fascinating, and basically made the first astronaut tests look like a day at the playground! XD

[Sir_Uncle_Ned]

So the chairs have crumple zones to increase the time that the force is applied over. You wouldn't expect a seat in a space capsule to just be a cheap deck chair taped to the floor

[petecomps]

The acceleration during the abort maneuver must have been only briefly at 15g for the chairs to be able to reduce them down to 8g. For the chairs to reduce acceleration, they must allow the passenger to "sink" into the chair a few inches. Once the passenger has moved all the way down, there is nothing left to absorb acceleration, and the passenger would thereafter experience the same g forces as the rest of the capsule. Thus, the 15g acceleration must have been very brief and then leveled off to a point of no more than 8g. By the way, we know that acceleration is defined as change in velocity. What is the term for change in acceleration? Answer: jerk. (Look it up if you don't believe me.)

[domvdg]

It's my 10 year old son's birthday today and he likes to imitate your 'stay angry about space ' tag line, so I played the very well down song at the end for him.

[peronik]

Concepts around acceleration are sometimes misleading.
In the case of a launcher:
From the top start to the 'Engine Cut OFF' the acceleration increases second by second, more or less continuously, up to the maximum expected for the 'payload'
For humans "unprepared" for high "load factors" we will probably be under 4G for a few dozen seconds.
On the other hand, in case of triggering of the emergency ejection system, there is absolutely no question of being progressive and continuous (delicate with the "payload")
You have to be VERY efficient and very fast so it's the "gunshot" at 15G (very powerful but very short in time, less than 1 second)
When we talk about "G" we often forget to talk about this other important parameter: the time during which these "G" are applied.
On the one hand we have Gs applied for a long time: surely unpleasant, but manageable
On the other side of the massive G but over a very very short time: it's a massive slap in the back very intense but very short