HaveBlue
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Re: SpaceX - Tests, Launches, Developments

Mon Jul 03, 2017 9:15 pm

Went down yesterday to a new spot I have for watching launches, but of course the launch was scrubbed. Going to try again tonight. That's the VAB in the background, we're much closer to it than it seems in the picture.

Image
how do i get a url for a picture
Here Here for Severe Clear!
 
HaveBlue
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Re: SpaceX - Tests, Launches, Developments

Mon Jul 03, 2017 9:21 pm

This is the view from my spot with my 300mm lense.

Image
Here Here for Severe Clear!
 
iamlucky13
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Re: SpaceX - Tests, Launches, Developments

Mon Jul 03, 2017 10:50 pm

Tugger wrote:
Of course it is off the topic but I wonder if the ULA will try to land a booster sometime. Their systems were never designed with that in mind so I doubt they can do it with their current launch vehicles.


It would be a major development project if they wanted to attempt it, but then again, that was also the case for the Falcon 9.

They have talked about their next rocket, Vulcan, being able to separate it's engines at burnout (something the original SM-65 Atlas also did) and be recovered in mid-air by helicopter. I don't know if that is confirmed.

JetBuddy wrote:
Their New Glenn rocket is scheduled to test launch before 2020. The New Shepard rocket has already done it many times, so they know the technology very well.


We'll see. ULA has been talking about 2019, but it's not clear how committed they are to it. Blue Origin has far more development to accomplish, however. New Shepard isn't even remotely in the same ballpark as New Glenn. They're taking a much bigger step than the evolution SpaceX took from the Falcon 1 to the Falcon 9, for example.
 
Trololzilla
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Re: SpaceX - Tests, Launches, Developments

Tue Jul 04, 2017 12:40 am

Another automatic abort at T-0:10 seconds. Another attempt is possible tomorrow.
 
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flyingturtle
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Re: SpaceX - Tests, Launches, Developments

Tue Jul 04, 2017 12:58 am

Sad.

Currently, I'm reading Martin Caidin's "Spaceport U.S.A.". It's very verbose and you get easily drowned in a ton of details. It tells the story of Cap Canaveral in the 1950ies (Snark, Navaho, Matador, Atlas, early Titan tests), and even then on-board computers took over all commands some time before lift-off. And it describes how painstaking everything is - myriads of power lines, pipes and everything, how careful the fuel must be removed after a failed start...


David
Keeping calm is terrorism against those who want to live in fear.
 
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AirlineCritic
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Re: SpaceX - Tests, Launches, Developments

Tue Jul 04, 2017 5:33 am

Congrats on the dragon landing!
 
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JetBuddy
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Re: SpaceX - Tests, Launches, Developments

Tue Jul 04, 2017 1:48 pm

Happy Independence Day, my American friends. :wave: It seems like SpaceX is going to use the day to figure out what went wrong, and prepare for launch on the 5th or the 6th.

That's according to Elon Musk's Twitter:
We're going to spend the 4th doing a full review of rocket & pad systems. Launch no earlier than 5th/6th. Only one chance to get it right …
 
SeJoWa
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Re: SpaceX - Tests, Launches, Developments

Tue Jul 04, 2017 6:44 pm

Thank you! SpaceX offering excellent general advice. Oh, that wasn't it? If I tweet it, it must become true. :? :yes: :weightlifter:
 
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Tugger
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Re: SpaceX - Tests, Launches, Developments

Wed Jul 05, 2017 5:33 pm

New launch window will open today, Wednesday at 7:37 p.m. EDT

Tugg
I don’t know that I am unafraid to be myself, but it is hard to be somebody else. -W. Shatner
 
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Tugger
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Re: SpaceX - Tests, Launches, Developments

Thu Jul 06, 2017 12:03 am

Nice, clean, successful launch!
Still awaiting completion of the mission, satellite insertion, but it has started nicely.

Tugg
I don’t know that I am unafraid to be myself, but it is hard to be somebody else. -W. Shatner
 
SeJoWa
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Re: SpaceX - Tests, Launches, Developments

Thu Jul 06, 2017 9:28 am

Very nice to see Intelsat 35E delivered to its GST orbit 625 km up and deployed - going 34'325 km/h. More money in the SpaceX kitty!
 
Siddar
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Re: SpaceX - Tests, Launches, Developments

Thu Jul 06, 2017 9:34 am

This will be interesting. Now that space x has launched three in space of two weeks. It means they have three separate launch crews working. Those crews will burn a lot of money if their left idle. So were at the point where space x will have to launch roughly 18 per year. Are suffer by having spare launch sitting around doing nothing.
 
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flyingturtle
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Re: SpaceX - Tests, Launches, Developments

Thu Jul 06, 2017 12:50 pm

This is the second SpaceX launch I've watched by video live stream. And I still find it so amazing that we actually have live video showing the running engines! IN SPACE!

David,

who is thinking on how to bribe SpaceX into launching Falcon Heavy on my next birthday
Keeping calm is terrorism against those who want to live in fear.
 
LightningZ71
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Re: SpaceX - Tests, Launches, Developments

Thu Jul 06, 2017 1:31 pm

One of the stated advantages of systems like Stratolaunch was that they would easily be able to keep up with a rapid launch cadence. I think that SpaceX is proving that a well thought out process for traditional vertical launch systems can produce sufficient cadence for current and foreseeable future launch demand while keeping costs reasonable. Add to this that the New Zealand based light rocket will be able to keep up a rather rapid pace to handle the lighter satellites, and one wonders where the demand for Stratolaunch's capability will be? I can only imagine that Stratolaunch will have to provide a cost savings of significant amounts to make itself relevant, which makes the whole financial position of the project less and less viable.
 
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JetBuddy
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Re: SpaceX - Tests, Launches, Developments

Thu Jul 06, 2017 6:23 pm

Congratulations SpaceX for another successful delivery. Mission accomplished! Always so amazing to watch.
 
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Tugger
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Re: SpaceX - Tests, Launches, Developments

Thu Jul 06, 2017 7:57 pm

I have to post this description of the launch from Spaceflight Now:
the two-stage, 229-foot-tall (70-meter) launcher lit nine Merlin 1D main engines and rocketed away from pad 39A at the Florida spaceport at 7:38 p.m. EDT (2338 GMT) Wednesday.

The slender white booster pivoted 1.7 million pounds of thrust from its main engines to steer eastward from the Space Coast, powering through the speed of sound as the kerosene-fueled first stage climbed above the stratosphere.

The nine-engine first stage shut down less than three minutes after liftoff, and the booster dropped away with the help of pneumatic pushers for a destructive plunge into the Atlantic Ocean.

https://spaceflightnow.com/2017/07/06/s ... 9-mission/

There is just something both eloquent and over the top about it! :D

Tugg
I don’t know that I am unafraid to be myself, but it is hard to be somebody else. -W. Shatner
 
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KarelXWB
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Re: SpaceX - Tests, Launches, Developments

Fri Jul 21, 2017 12:30 pm

SpaceX drops plans for powered Dragon landings:

SpaceX no longer plans to have the next version of its Dragon spacecraft be capable of powered landings, a move that has implications for the company’s long-term Mars plans.

SpaceX Chief Executive Elon Musk, speaking at the International Space Station Research and Development Conference here July 19, confirmed recent rumors that the version of the Dragon spacecraft under development for NASA’s commercial crew program will not have the ability to land on land using SuperDraco thrusters that will be incorporated into the spacecraft primarily as a launch abort system.


Full article
http://spacenews.com/spacex-drops-plans ... -landings/
What we leave behind is not as important as how we've lived.
 
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AirlineCritic
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Re: SpaceX - Tests, Launches, Developments

Sat Jul 22, 2017 5:47 am

sigh

filler
filler
filler
 
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flyingturtle
Posts: 5079
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Re: SpaceX - Tests, Launches, Developments

Sat Jul 22, 2017 1:58 pm

Well, I can't blame them for saving complexity.

David
Keeping calm is terrorism against those who want to live in fear.
 
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Stitch
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Re: SpaceX - Tests, Launches, Developments

Sat Jul 22, 2017 4:28 pm

Man-Rating a launch system has to be a very expensive and time-consuming process. The costs in time (delays) and money of certifying the Dragon's powered-landing system might outweigh the benefits compared to having it land in the ocean or on land like the Soviet capsules do.
 
iamlucky13
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Re: SpaceX - Tests, Launches, Developments

Sun Jul 23, 2017 6:13 am

I'm not sure Red Dragon is ruled out by this as suggested in the article. Red Dragon doesn't have to be reused. It just has to be in good enough shape for its payload to be deployed.
 
WIederling
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Re: SpaceX - Tests, Launches, Developments

Sun Jul 23, 2017 10:23 am

certifying the Dragon's powered-landing system ..

Isn't that prerequisite for a later mars landing and lift off ?
Most of the delay able/nix able nice to have features present later hard requirements, don't they?
Murphy is an optimist
 
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Francoflier
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Re: SpaceX - Tests, Launches, Developments

Mon Jul 24, 2017 3:09 am

Here's a video of Musk talking about the difficulties encountered with the development of Falcon Heavy as well, and it's eye popping.

https://www.youtube.com/watch?v=2tESpswQVXI

It would seem that after the euphoria of an initial streak of successes and breakthroughs, SpaceX is now facing a stiff bit of reality headwind...

He mentions all the technical challenges of essentially firing 3 first stages and 27 engines at the same time, and, as was already discussed and speculated earlier on this thread, the exponential technical challenges created by the additional mechanical stresses, vibration and harmonics, complex aerodynamic interference etc... and explains how they essentially went from "hey let's just strap 3 Falcon 9s together and make a big rocket" to "Oh... this is not going to be that simple".

The part I love most is his pessimism about the first launch. Musk always prefers to lower expectations when it comes to testing new hardware, but when talking about FH's first launch, he has half-jokingly cranked that right down to: - I'll be happy if it clears the launch pad without damaging it...
His expectations of it reaching orbit appear minimal.

:wideeyed:

Edifying.
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