Proton K launch vehicle didn’t cause failure of Astra 1K launch N...
Proton K launch vehicle didn’t cause failure of Astra 1K launch Nov. 25., Russian State Failure Commission announced. Engine of Block DM upper stage is now focus of investigation. Commission released preliminary conclusions to International Launch Services (ILS) Tues.…
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Commission suspects excessive temperatures, possibly caused by burn of extra fuel in main engine, destroyed Block DM during 2nd ignition. Final report and recommendations will be released in Jan. following end of investigation. ILS will conduct independent review of final report. SES Americom recently announced extent of launch delay for company’s AMC-9 will depend on findings of ILS’s independent review (CD Dec 31 p3).