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In a typical mission, a Proton-M is accompanied by a Briz-M upper stage. The Proton-M launches the orbital unit (that is: the payload, the payload adapter and the Briz-M) into a slightly suborbital trajectory. The first and second stages and the payload fairing crash into designated crash sites; the third stage crashes into the ocean.
As of September 2015, 3 Proton-M/Blok DM-03 have been launched, of which 2 have failed. In the 2010 failure, the rocket was too heavy to reach orbit and reentered the atmosphere during a coast phase between the end of third stage flight and the beginning of the Blok DM-03's first burn, whilst the 2013 flight failed after the rocket went out of ...
Proton-M/DM-03 8K82KM/11S861-03 Site 81/24 Ekspress AM8: Geosynchronous Success Communications 935-56 16 October 2015 20:40:11 Proton-M/Briz-M 8K82KM/11S43 Site 200/39 Türksat 4B: Geosynchronous transfer Success [49] Communications, Commercial launch conducted by International Launch Services 535-44 13 December 2015 00:19:00 Proton-M/Briz-M ...
On 2 July 2013, a Proton-M launching three GLONASS navigation satellites experienced a failure reminiscent of the 1960s disasters shortly after liftoff when the booster crashed near LC-39 at Baikonour, ending a 30-year unbroken stretch without a first stage failure; all future Proton flights were suspended pending investigation. [25]
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Launch failure First stage failure, impacted ocean at 40 seconds after launch. Accident caused by failure of the first stage hydraulic power supply unit pump at T+3.9s, which lead to loss of engine gimbal control. [6] 6 February 16:04:24 Soyuz-2.1a / Fregat: Baikonur Site 31/6: Starsem: Globalstar M078: Globalstar: Low Earth: Communications: In ...
RD-254 (GRAU Index 11D44): Project for UR-700 third stage and for Proton and N-1 second stages, it was a RD-253 high-altitude version. RD-275 (GRAU Index 14D14): Serial production for Proton-M first stage. RD-253 with increased thrust by 8%. [9] RD-276 (GRAU Index 14D14М): Serial production for Proton-M first stage. Sometimes previously called ...
The rate at which troops were hospitalized for mental illnesses has risen 87 percent since 2000, according to a July 2013 study by the Armed Forces Health Surveillance Center. The center also reported in June of last year that mental complaints, not physical injury, were the leading cause of medical evacuations from the battlefields of Iraq and ...