ВНИМАНИЕ! На форуме завершено голосование в конкурсе - астрофотография месяца ИЮЛЬ-АВГУСТ!
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Т.к. наклонение 34 градуса, а высота не более 290 км, то для большей части СНГ объект будет не видим.
81 движок на первую ступень - дорого, опасно и глупо.
However, Musk brought it up after an audience member noticed during his introductory presentation that the largest test stand, nicknamed “BFTS”, at the company’s Texas engine test facility could handle nearly five times the 3.5-million newton thrust of the first stage of the Falcon 9. Why so big?The answer is the Merlin 2. Musk said that this engine, under conceptual design at the moment, will be “a hell of a lot bigger than the Merlin 1.” Although the company doesn’t plan to release specifications for the engine until some time next year, he later added that the Merlin 2 would be the largest rocket engine in the world, “where an engine is defined as one thrust chamber.” He included that caveat to specifically exclude the RD-170 engine developed for the giant Energia launch vehicle. That engine, with four thrust chambers, could generate 7.9 million newtons of thrust, slightly more than the single-chamber F-1 used on the Saturn 5. Musk said that the Merlin 2 will be, in general, a scaled-up version of the Merlin 1. One change that SpaceX does plan, he noted, was to replace the ablative engine chamber with a regeneratively-cooled one.The development of Merlin 2 begs the question: what is SpaceX planning that requires such a powerful engine? In past talks Musk has hinted at the development of something called the “BFR” (where B stands for “big” and R for “rocket”), a heavy-lift vehicle far larger than the Falcon family of vehicles. At SpaceVision2005 Musk disclosed that the BFR, in its current iteration, would use “multiple” Merlin 2 engines. The BFR would be able to place 100 tons in low Earth orbit, putting it in competition with NASA’s planned shuttle-derived heavy-lift launcher. The BFR is so big, Musk said, that it’s too large for the BFTS at their Texas test site: even if they beefed up the stand, he said, the overpressure from the engine tests would break windows in a nearby town. Musk said they would have to test the vehicle either at the launch site or, perhaps, at NASA’s Stennis Space Center in Mississippi.One issue that SpaceX is grappling with is who would need the BFR. “That’s where things get a little dodgy,” Musk said. “We’re not quite sure how to pay for that vehicle.” While Musk said he sees a long-term market transporting the infrastructure for colonization of the Moon and Mars, he hopes that in the near-term “NASA will buy from us”, particularly if the cost of the BFR is on the order of ten percent of a shuttle-derived alternative. “The DOD might also have some ideas for putting some big things in space,” he added. Regardless, the development of the BFR will be a costly proposition: he estimates that the Merlin 2 engine alone could cost up to $100 million to develop, a price that would still be far lower than the development of similar large engines in the past. “I’ve got a plan to help pay for some of that, but it may not be enough.”
Там еще и условия по освещенности неудачные. Т.е. похоже у нас его вообще не видно. Пока - но долго ли он пролетает-то?
The decay terms of the TLEs of 10026A / 36595 appear to be settling down torealistic values, enabling the date of decay to be estimated. Satevo 0.51propogates the TLEs of epoch 10156.028 and 10156.085 to decay on Jun 22 andJune 17 UTC, respectively.
"SpaceX says they accomplished a second stage restart "burp" to slightly change the Falcon's orbit. That could explain the slightly elliptical orbit being reported by independent tracking data.""We did a test burp of the second stage after orbit insertion, so the current orbit will be a little different than the insertion orbit," (says) Elon Musk
Вот такое НЛО над Австралией наблюдали...
Павел ! Порадуйте товарищей !Где Вы так классно провели выходные ?
Молодцы! Я тоже не ожидал столь быстрого успеха Мои поздравления!
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Тема: SpaceX (Прочитано 2143580 раз)
