Author Topic: SpaceX Dragon 2 Updates and Discussion - Thread 2  (Read 706261 times)

Offline woods170

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1080 on: 03/27/2018 09:08 am »
No one at the NASA meeting seemed very certain about the dates holding...

They were being politically correct. I have it from sources at both Boeing and SpaceX that their crewed demo missions have, by all practical measurements, slipped into 2019. Courtesy of NASA not having a certain review process in order (as already noted by ASAP, multiple times, over the past year). Also: scheduling issues at Plum Brook and other NASA facilities required for CCP vehicle testing.

Offline woods170

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1081 on: 03/27/2018 09:10 am »
Does the crew access arm need to be installed for the uncrewed test?
No. CAA is not needed until Demo 2.

Offline Svetoslav

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1082 on: 03/27/2018 09:19 am »
They were being politically correct. I have it from sources at both Boeing and SpaceX that their crewed demo missions have, by all practical measurements, slipped into 2019.

So when will NASA officially admit that the cat is out of the bag?

Offline eeergo

Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1083 on: 03/27/2018 09:36 am »
It isn't too discernible on the picture, but it looks like the internal skin stiffeners for the capsule are something more elaborate than an aerospace-typical isogrid structure?

Reminds me up to a point of these conceptual studies for aircraft elements based on 3D printing of dendritic, biology-mimicking stiffening structures:
https://www.seeker.com/tech/materials/supercomputer-dreams-up-a-bird-like-airplane-wing
http://www.3ders.org/articles/20160116-airbus-starts-3d-printing-airplane-cabin-partition-that-mimics-cells-and-bones-structure.html
-DaviD-

Offline woods170

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1084 on: 03/27/2018 10:24 am »
They were being politically correct. I have it from sources at both Boeing and SpaceX that their crewed demo missions have, by all practical measurements, slipped into 2019.

So when will NASA officially admit that the cat is out of the bag?

Like they always do: at the next official assessment of the schedule.

Offline Crispy

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1085 on: 03/27/2018 10:37 am »
Each major triangle is divided into 3 by ribs running from the midpoints of each edge to the centre. Some (major and minor) ribs aren't showing up in the photo due to the lighting angle.

The pattern is quite clear in other photos, eg: https://upload.wikimedia.org/wikipedia/commons/d/d1/SpaceX_Dragon_v2_%28Crew%29_interior_%2816763231836%29.jpg


Offline Inoeth

Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1087 on: 03/27/2018 08:00 pm »
No one at the NASA meeting seemed very certain about the dates holding...

They were being politically correct. I have it from sources at both Boeing and SpaceX that their crewed demo missions have, by all practical measurements, slipped into 2019. Courtesy of NASA not having a certain review process in order (as already noted by ASAP, multiple times, over the past year). Also: scheduling issues at Plum Brook and other NASA facilities required for CCP vehicle testing.

So, correct me if i'm not understanding this correctly, the slip is entirely of NASA's own making and both SpaceX and Boeing will have the hardware ready in time?

Offline envy887

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1088 on: 03/27/2018 08:11 pm »
No one at the NASA meeting seemed very certain about the dates holding...

They were being politically correct. I have it from sources at both Boeing and SpaceX that their crewed demo missions have, by all practical measurements, slipped into 2019. Courtesy of NASA not having a certain review process in order (as already noted by ASAP, multiple times, over the past year). Also: scheduling issues at Plum Brook and other NASA facilities required for CCP vehicle testing.

So, correct me if i'm not understanding this correctly, the slip is entirely of NASA's own making and both SpaceX and Boeing will have the hardware ready in time?

The hardware isn't "ready" if it isn't tested and signed off.

Offline dror

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Space is hard immensely complex and high risk !

Online Robotbeat

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1090 on: 03/28/2018 12:26 am »
No one at the NASA meeting seemed very certain about the dates holding...

They were being politically correct. I have it from sources at both Boeing and SpaceX that their crewed demo missions have, by all practical measurements, slipped into 2019. Courtesy of NASA not having a certain review process in order (as already noted by ASAP, multiple times, over the past year). Also: scheduling issues at Plum Brook and other NASA facilities required for CCP vehicle testing.

So, correct me if i'm not understanding this correctly, the slip is entirely of NASA's own making and both SpaceX and Boeing will have the hardware ready in time?
Yeah, no, that's not a good read of it.

Some of it is pretty legitimate delay on NASA's part. Don't want to dig into specifics, but it's not just "NASA's own making."
Chris  Whoever loves correction loves knowledge, but he who hates reproof is stupid.

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Offline joek

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1091 on: 03/28/2018 01:03 am »
... Courtesy of NASA not having a certain review process in order (as already noted by ASAP, multiple times, over the past year).

... Don't want to dig into specifics, but it's not just "NASA's own making."

Jeepers What's with all the mystery-mumbo-jumbo?  These issues have been public record since forever.  NASA has been delinquent in disposing of CCtCap provider requests for clarification-exception-certification-whatever (the GAO has remarked on it).  Doesn't mean it's NASA fault or the provider's fault, just that they're still trying to figure it out.  This is, after all, relatively new to all parties involved.  So let's cut everyone some slack.

Offline woods170

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1092 on: 03/28/2018 09:04 am »
... Courtesy of NASA not having a certain review process in order (as already noted by ASAP, multiple times, over the past year).

... Don't want to dig into specifics, but it's not just "NASA's own making."

Jeepers What's with all the mystery-mumbo-jumbo?  These issues have been public record since forever.  NASA has been delinquent in disposing of CCtCap provider requests for clarification-exception-certification-whatever (the GAO has remarked on it).  Doesn't mean it's NASA fault or the provider's fault, just that they're still trying to figure it out.  This is, after all, relatively new to all parties involved.  So let's cut everyone some slack.

The mountain of work remaining at NASA has not just been noticed by GAO, but also by ASAP.

https://oiir.hq.nasa.gov/asap/documents/ASAP_4th_Quarterly_Meeting_Minutes_2017.pdf

Quote from: ASAP
Lt Gen Helms made a final comment regarding the schedule. The Panel appreciates the sheer volume of work by NASA’s Program team and the providers —under fairly unique circumstances — in getting two vehicles off the ground in the same timeframe.
It is clear that NASA will be receiving a great quantity of provider products.
The Panel has reviewed the schedules for the providers, and they are very ambitious to meet the official launch dates. Behind the provider schedules are the NASA schedules to assimilate, process, adjudicate, and approve the products and activities for the NASA readiness review. It is a lot of work. This process has begun and it will get more difficult as the team moves closer to the launch readiness dates. The Panel encouraged support of the CCP to ensure they have all the resources to accomplish the work judiciously and safely. Lt Gen Helms noted that this is an important ASAP “watch item.”
« Last Edit: 03/28/2018 09:06 am by woods170 »

Offline JQP

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1093 on: 03/29/2018 08:37 am »
Quote
Each major triangle is divided into 3 by ribs running from the midpoints of each edge to the centre. Some (major and minor) ribs aren't showing up in the photo due to the lighting angle.

Semantics, but those look like hexagons with "ley" lines going through every center and bisecting every facet; the triangles seem incidental, but for the fact that the "ley" lines forming them are thicker than the lines forming the smaller hexagons. OTOH, the hexagons do peter out in a couple places, leaving only triangles...

Looks like a non-standard lens was used, maybe to make the interior seem larger than it is? Lots of distortion on the left and right.

Also, wondering what conditioner that fella uses.

Online gongora

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1094 on: 04/06/2018 02:12 pm »
« Last Edit: 04/06/2018 02:13 pm by gongora »

Online gongora

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1095 on: 04/06/2018 02:27 pm »
From document linked above:
Quote
The Gulf of Mexico would act as a contingency landing site in the event of hazardous conditions in either the currently utilized Pacific Ocean landing site or the recently approved Atlantic Ocean landing site.

Offline scdavis

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1096 on: 04/06/2018 02:42 pm »
1.3.2 SpaceX’s Purpose and Need

Quote
With the introduction of the CCP, the ability to return crew to Earth in a safe and timely manner is
extremely important, particularly in cases where human life or health may be in jeopardy. The purpose
of the Proposed Action is to therefore establish an additional Dragon-2 splashdown option. The
Proposed Action is needed as the additional option further ensures that a secondary splashdown option
is available to missions planned to splashdown in either the Pacific or Atlantic Oceans, which would
provide the returning crew with a timely and safe return to Earth.

Online docmordrid

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1097 on: 04/06/2018 03:11 pm »
Whoever chose the color marking the recovery zone chose one to dark to stand out well IMO, so a quick color replace seems in order.

« Last Edit: 04/06/2018 03:13 pm by docmordrid »
DM

Offline Demidrol

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1098 on: 04/06/2018 03:17 pm »
That's for both Crew and Cargo Dragon landings?
« Last Edit: 04/06/2018 04:34 pm by Demidrol »

Offline philw1776

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1099 on: 04/06/2018 03:31 pm »
Whoever chose the color marking the recovery zone chose one to dark to stand out well IMO, so a quick color replace seems in order.

I welcome SpaceX to splash down off Anna Maria Island near my winter home anytime.
I wonder if they have a secondary agenda here getting Gulf permissions later extensible to some unnamed future vehicles post Falcon?
FULL SEND!!!!

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