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Falcon 9 v1.1 launch congrats & video...
Congrats to SpaceX on successful launch of Falcon 9 v1.1 with Merlin
1D's in octagon+1 configuration. And congrats to U of Calgary on orbiting of CASSIOPE. First video I've seen is here on YouTube. Hopefully better (less interruptions) to follow. http://www.youtube.com/watch?v=uFefasS6bhc Noticeable TEB flash at start. Great to have good sound in this video.... Story he http://www.nasaspaceflight.com/2013/...ssiope-launch/ and he http://www.cbc.ca/news/canada/calgar...rbit-1.1872581 Dave |
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Falcon 9 v1.1 launch congrats & video...
Also note:
Got some rusty water coming out of fire suppression nozzle at pad right at 00:52 T-02 but runs clean by 0:54... Or rust inhibitor? Dave |
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Falcon 9 v1.1 launch congrats & video...
David Spain wrote:
Got some rusty water coming out of fire suppression nozzle at pad right at 00:52 T-02 but runs clean by 0:54... Or rust inhibitor? Any word on the attempt to simulate landing the first stage? rick jones -- a wide gulf separates "what if" from "if only" these opinions are mine, all mine; HP might not want them anyway... feel free to post, OR email to rick.jones2 in hp.com but NOT BOTH... |
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Falcon 9 v1.1 launch congrats & video...
Rick Jones wrote:
David Spain wrote: Got some rusty water coming out of fire suppression nozzle at pad right at 00:52 T-02 but runs clean by 0:54... Or rust inhibitor? Any word on the attempt to simulate landing the first stage? The BBC did seem to have something to report on that matter: http://www.bbc.co.uk/news/science-environment-24326413 rick jones -- Process shall set you free from the need for rational thought. these opinions are mine, all mine; HP might not want them anyway... feel free to post, OR email to rick.jones2 in hp.com but NOT BOTH... |
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Falcon 9 v1.1 launch congrats & video...
On 10/2/2013 7:49 AM, Jeff Findley wrote:
Later in the trajectory a single engine was started for the final descent. Unfortunately, as this burn was taking place, the stage went into a roll which exceeded what the control system could handle. This caused the fuel to spin to the outside of the tanks which made the engine shut-down due to lack of fuel at the (central) inlet in the tank. As was mentioned in arocket roll stability is going to be tricky to manage. I suppose on a true Falcon 9R with legs extended that will help but the photos I've seen so far show no RCS components on the legs themselves. Not sure they can rely on rotational inertia alone. This caused the stage to hit the water hard. SpaceX reportedly recovered at least some first stage debris for analysis. Work to do, bad enough to hit hard on water, worse to hit hard on land. Even if you might be able to obtain more fragments of the rocket, you'll also have to deal with fragments of stuff that was once intact on the ground. OTOH not sure how this Falcon launch profile will mimic those actually used for a Falcon 9R. My understanding is that Falcon 9R flights will be more vertically oriented for the first stage, and put more of the orbital insertion burden on the second stage. Uh, well, er, assuming the second stage remains viable during those flights. I think this flight is going to go down as one of those "important learning curve" milestones. I'm beginning to wonder if the pressure to make SpaceX a commercial success with the focus on getting payload to orbit may interfere with these aggressive plans to make components of the system reusable. It'd be interesting to go over a SpaceX launch contract. In the fine print I'm wondering if a potential customer enters into a a Falcon-9 launch with the understanding that parts of the system remain "works-in-progress" and hence present somewhat additional risk the customer agrees to. Since Falcon 9 is considerably cheaper than other ELV options of similar capacity, it still might be worth that additional risk to many customers. In this flight many of the system "re-usability experiments" occurred *after* payload to orbit parts of those systems (mission critical components) had completed. So far this type of dual-track development has worked out for SpaceX. No one has been scared off yet. Dave |
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