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Falcon 9 Landing failure
http://www.reuters.com/article/2015/...0UP08F20150110 "Close by not cigar". But I sounds like an easy fix. "Grid fins worked extremely well from hypersonic velocity to subsonic, but ran out of hydraulic fluid right before landing," Musk wrote on Twitter. Next flight will have 50% more fluid. So getting closer! |
#2
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Falcon 9 Landing failure
Interesting concept, but as has been said, it has to impact on the lift
potential so the less weight the better I'd assume If they manage this and can reuse components, then it would be interesting to see how they perform. Brian -- From the Sofa of Brian Gaff Reply address is active "Greg (Strider) Moore" wrote in message ... http://www.reuters.com/article/2015/...0UP08F20150110 "Close by not cigar". But I sounds like an easy fix. "Grid fins worked extremely well from hypersonic velocity to subsonic, but ran out of hydraulic fluid right before landing," Musk wrote on Twitter. Next flight will have 50% more fluid. So getting closer! |
#3
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Falcon 9 Landing failure
JF Mezei submitted this gripping article, maybe on Monday:
On 15-01-10 17:47, Greg (Strider) Moore wrote: "Grid fins worked extremely well from hypersonic velocity to subsonic, but ran out of hydraulic fluid right before landing," Musk wrote on Twitter. I looked at the apcex web site, saw nifty pictures and heavy html/javascript, but no description on how stage 1 lands. Does anyone know of some web site (or provide explanation here) of the principles involved in the tube landing upright ? Does the return involve powered flight for most of the way, including horizontal flying or is this just a cut the engines, drop down vertically, and then light engines to land type of deal ? Are parachutes involved to slow down and give the tube vertical orientation ? Or is it all done with fuel/aerodynamics ? "ran out of hydraulic fluids". Wouldn't hydraulics normally be in a closed loop system where there is no loss ? URL:http://justatinker.com/Future/ has a graphic (referenced by NBCNEWS.COM) indicating 3 burns. Durations are not shown. The tests with Grasshopper and F9R-Dev1 should give an approximation of the landing burn, though. /dps -- But happiness cannot be pursued; it must ensue. One must have a reason to 'be happy.'" Viktor Frankl |
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Falcon 9 Landing failure
JF Mezei explained on 1/12/2015 :
Are parachutes involved to slow down and give the tube vertical orientation ? Or is it all done with fuel/aerodynamics ? Vertical orientation can be done with the paddle fins and steerable motors. "ran out of hydraulic fluids". Wouldn't hydraulics normally be in a closed loop system where there is no loss ? Just like the shuttle needed APUs to run the hydraulics, I'd imagine an energy source was needed to provide the pressure that acutally moves things. Lacking more detailed information, I'd guess that the energy source ran out of juice. No Catepillar diesel engine aboard, apparently. /dps -- But happiness cannot be pursued; it must ensue. One must have a reason to 'be happy.'" Viktor Frankl |
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Falcon 9 Landing failure
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Falcon 9 Landing failure
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#7
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Falcon 9 Landing failure
On Friday, January 16, 2015 at 12:23:17 PM UTC-5, JF Mezei wrote:
SpaceX posted a vine of the stage one "close but no cigar" landing attempt https://vine.co/v/OjqeYWWpVWK I hope a real video on youtube will/is available Done! (awhile ago) https://www.youtube.com/watch?v=RMAtCQEPLeQ Dave |
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