Author Topic: SpaceX Dragon 2 Updates and Discussion - Thread 2  (Read 771891 times)

Offline russianhalo117

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1320 on: 06/21/2018 12:01 am »
Quote
Crew Dragon is at @NASA’s Plum Brook Station testing facility in Ohio, home to the largest thermal vacuum chamber in the world, to demonstrate its capability to withstand the extreme temperatures and vacuum of space. instagram.com/p/BkQ8w0mFoxa

https://twitter.com/spacex/status/1009580017049747456
it looks like the conformal radiators are still installed on the backside but no solar panels installed (active or inert simulator).
« Last Edit: 06/21/2018 05:35 pm by russianhalo117 »

Offline darkenfast

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1321 on: 06/21/2018 04:07 am »
I spy several interesting pieces of hardware on the deck behind the man in the blue hoodie.  There's also a display board, so they must show people around there sometimes.  AND, to keep on topic: nice Dragon!
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Offline wannamoonbase

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1322 on: 06/21/2018 04:45 am »
It’s great to be at this point with the testing.  But this makes me feel like manned flights are still further away than it shows on the manifest.

Hears to the first test flight!
Wildly optimistic prediction, Superheavy recovery on IFT-4 or IFT-5

Offline Coastal Ron

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1323 on: 06/21/2018 05:01 am »
What is the tank structure in the left back corner of the level the workers are on? One of the tanks has an American flag on it?
If we don't continuously lower the cost to access space, how are we ever going to afford to expand humanity out into space?

Offline guckyfan

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1324 on: 06/21/2018 05:32 am »
Why is the trunk now dark? The first pictures of the vehicle shows it white.


Offline woods170

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1325 on: 06/21/2018 07:13 am »
Why is the trunk now dark? The first pictures of the vehicle shows it white.

The first image shows the side with the crew hatch. This side holds the radiators on the trunk. Those radiators have white cover panels in place.
The image from Plum Brook show the "back-side" of the vehicle. That side will hold the solar panels, but those are not installed for this initial test. The underlying structure of the trunk is made of carbon fiber and therefore black.

Also: please don't embed images. Attach them.
« Last Edit: 06/21/2018 07:14 am by woods170 »

Offline Gliderflyer

Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1326 on: 06/21/2018 11:44 am »
What is the tank structure in the left back corner of the level the workers are on? One of the tanks has an American flag on it?
Looks like Morpheus (or something similar, I don't know if they built another one after the crash).
I tried it at home

Offline The man in the can

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1327 on: 06/21/2018 07:33 pm »
What is the tank structure in the left back corner of the level the workers are on? One of the tanks has an American flag on it?
Looks like Morpheus (or something similar, I don't know if they built another one after the crash).
Yes they built another one and did more flights. For info : https://morpheuslander.jsc.nasa.gov/. OT here :-X
« Last Edit: 06/21/2018 07:36 pm by The man in the can »

Online FutureSpaceTourist

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1328 on: 06/26/2018 07:58 pm »
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spacex At Naval Air Facility El Centro in Southern California, SpaceX recently completed its 16th test of Crew Dragon’s parachute system—verifying the system’s ability to slow Crew Dragon and ensure a safe landing in the unlikely event of a low altitude abort.

https://instagram.com/p/BkgAmoGF490/
« Last Edit: 06/26/2018 08:16 pm by FutureSpaceTourist »

Online FutureSpaceTourist

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1329 on: 06/26/2018 08:16 pm »
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spacex Another view of SpaceX’s 16th Crew Dragon parachute test recently completed at Naval Air Facility El Centro in Southern California

https://instagram.com/p/BkgA3f8lPgo/

Offline FlokiViking

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1330 on: 06/27/2018 02:45 pm »
Looks like the crew will need to have their seat straps cinched real tight during this parachute sequence - it's going to be like riding a bucking bronco for a few seconds!  ;)
Most of reentry will be with Gs on their backs, but will the crew be more 'feet down' or 'eyes down' during this sequence based on what we see in these videos?

Offline Johnnyhinbos

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1331 on: 06/27/2018 03:09 pm »
Looks like the crew will need to have their seat straps cinched real tight during this parachute sequence - it's going to be like riding a bucking bronco for a few seconds!  ;)
Most of reentry will be with Gs on their backs, but will the crew be more 'feet down' or 'eyes down' during this sequence based on what we see in these videos?
This is a low altitude abort test. I believe the deployment sequence higher up in the less dense air will be somewhat more graceful...
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Offline wannamoonbase

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1332 on: 06/27/2018 04:40 pm »
Looks like the crew will need to have their seat straps cinched real tight during this parachute sequence - it's going to be like riding a bucking bronco for a few seconds!  ;)
Most of reentry will be with Gs on their backs, but will the crew be more 'feet down' or 'eyes down' during this sequence based on what we see in these videos?

There isn't much a dampening force to slow down that swinging motion is there?

I've always found the inflation motion of the main chutes to be hypnotic.  Such a slick design how they fill up at the appropriate speed.

We're only a few months away from the first un-crewed test flight.  That's going to be exciting.
Wildly optimistic prediction, Superheavy recovery on IFT-4 or IFT-5

Offline billh

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1333 on: 06/28/2018 01:25 pm »
Looks like the crew will need to have their seat straps cinched real tight during this parachute sequence - it's going to be like riding a bucking bronco for a few seconds!  ;)
Most of reentry will be with Gs on their backs, but will the crew be more 'feet down' or 'eyes down' during this sequence based on what we see in these videos?
This is a low altitude abort test. I believe the deployment sequence higher up in the less dense air will be somewhat more graceful...
Yeah, this test was nothing compared to the way the capsule was rocking on the pad abort test.


Offline Giovanni DS

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1334 on: 06/28/2018 01:39 pm »
Imagine the following scenario, D2 on top of a fully loaded F9 and still on the pad, an anomaly requires crew evacuation and that could be dangerous.

Would an abort be called in such a scenario? Would such an abort -cause- the destruction of the F9 and the pad?

Offline Tomness

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1335 on: 06/28/2018 01:45 pm »
Quote
spacex Another view of SpaceX’s 16th Crew Dragon parachute test recently completed at Naval Air Facility El Centro in Southern California

https://instagram.com/p/BkgA3f8lPgo/

The decent does look more benign with 4 main chutes vs 3 chutes set up with more redundancies

Offline woods170

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1336 on: 06/28/2018 01:47 pm »
Looks like the crew will need to have their seat straps cinched real tight during this parachute sequence - it's going to be like riding a bucking bronco for a few seconds!  ;)
Most of reentry will be with Gs on their backs, but will the crew be more 'feet down' or 'eyes down' during this sequence based on what we see in these videos?
This is a low altitude abort test. I believe the deployment sequence higher up in the less dense air will be somewhat more graceful...
Yeah, this test was nothing compared to the way the capsule was rocking on the pad abort test.

The first dedicated test of the parachute set-up for Crew Dragon was in December 2013. In that test the capsule was deliberately sent into a tumble to test the parachute deployment sequence under the most difficult of circumstances. That tumble is something that the astros might actually encounter when returning to Earth aboard a Crew Dragon.


Offline envy887

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1337 on: 06/28/2018 01:50 pm »
Imagine the following scenario, D2 on top of a fully loaded F9 and still on the pad, an anomaly requires crew evacuation and that could be dangerous.

Would an abort be called in such a scenario? Would such an abort -cause- the destruction of the F9 and the pad?

Depends what the anomoly is. If the vehicle is stable, they will detank and passivate it, and then evac the crew through the tower and/or slide escape.


Offline Doesitfloat

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Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1338 on: 06/28/2018 02:47 pm »
Imagine the following scenario, D2 on top of a fully loaded F9 and still on the pad, an anomaly requires crew evacuation and that could be dangerous.

Would an abort be called in such a scenario? Would such an abort -cause- the destruction of the F9 and the pad?

Depends what the anomoly is. If the vehicle is stable, they will detank and passivate it, and then evac the crew through the tower and/or slide escape.

I don't see how Giovanni's scenario is unique to Dragon.  A crew has an anomaly after access arm is detached..
Sounds like Alan Shepard's first flight. A few options:
1: Work through the problems and launch.
2: Scrub Launch- Follow scrub procedures.
3: Fire LAS to save crew.

Starliner has to have the same set of plans.  When to fire the LAS and when to scrub.



Re: SpaceX Dragon 2 Updates and Discussion - Thread 2
« Reply #1339 on: 06/28/2018 02:54 pm »
can someone point me in the direction on how the main parachute restrictors work. It doesn't seem passive to me because the same force on the chutes are applied for a time until they release and let them open more. Is it a timed release?

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