延期的俄国新型火箭预定后天7月9日发射


Next Angara Launch Attempt Set for July 9Posted by Doug Messier on July 6, 2014, at 10:11 am in NewsTags: angara, plesetsk.Comments: no responses0 Comments

Angara-1.2 launch vehicle on pad at Plesetsk. (Credit: Khrunichev)

Russia media are reporting that there will be a second attempt to launch the Angara 1.2 rocket on Wednesday, July 9. The inaugural test flight of the new Russian rocket was called off at the last minute due to a technical glitch on June 27.

“The purpose of the Angara-1.2ML launch is injecting Stage 2 and a mass/dimensional dummy payload, the latter not to be separated, to a ballistic trajectory,” the Russian space agency, Roscosmos, said in a press release. “The stack is subsequently expected to reach its targeted impact area in the Kamchatka Peninsula.”

Angara is a modular family of rockets that will be able to lift light to heavy payloads. It is designed to replace a number of existing launch vehicles, including the Proton, Zenit and Rockot.

About Angara

The Angara Space Launch System represents the next-generation modularized launch vehicles that will be built around two common rocket common core boosters (CCBs) using oxygen-kerosene engines URM 1 and URM 2, respectively.

The Angara product line includes lightweight to heavy-lift launchers featuring LEO payload capabilities of 3.8 MT to 35 MT (Angara A7).

The LOX/kerosene common core booster (CCB or URM) is a wholesome structure that includes an oxidizer tank, a fuel tank (both tanks being coupled by a spacer) and a propulsion bay.

Each CCB is fit with one RD 191 high-power liquid engine. This engine is being developed on the basis of (1) the four-chamber engine used earlier by the Energia launch vehicle and (2) the RD 170/171 engine still in operation on the Zenit LV.

One CCB (URM) is used by the light-weight Angara 1.2 LV. The maximum number of CCBs is seven (Angara А7).

A prototype of Angara’s first stage, URM-1, has been flight-tested on three occasions (2009, 2010, 2013) as part of Korea’s KSLV-1.

Angara 1.2 will use Breeze-KM as its upper stage. (This upper stage has been successfully tested in combination with Rockot, a conversion- program launcher.). Angara A5 will use Breeze-M or KVTK as its upper stage.

The high degree of modularity combined with the unique design solutions employed would allow any member of the Angara family to be launched from the same pad- See more at: http://www.parabolicarc.com/2014/07/06/angara-launch-attempt-set-july-9/#sthash.3qBGQOyc.dpuf

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