Sharoballonov:шаровидный = sphericalбаллон = tank
Final component for the second Angara-5 rocket rolls outOn September 18, 2018, a train, carrying the final URM-1 booster for the second Angara-A5 rocket, departed its production plant in Omsk for Moscow, where the rocket will undergo final assembly and testing, Roskosmos State Corporation said. In the meantime, the vibration and strength tests of the URM-1 prototype at the TsNIIMash facility were successfully completed, according to Roskosmos. The State Corporation re-confirmed the scheduled launch of the second Angara-5 vehicle in 2019, but did not specify the exact date or the type of payload for the mission.Known components of the Angara-5 rocket during its second launch:Angara-A5 (a.k.a. Angara-A5.2L or 2LM) vehicle 14A127, Series No. 71752Briz-M upper stage 14S43Four strap-on boosters BB1, BB2, BB3, BB4
engines of the Angara A5 could produce low frequency oscillations that could ultimately destroy the rocket.A special valve had been fitted to mitigate the issue, but in some cases the oscillations continued, it said. Energomash did not immediately reply to a request for comment.
Russian scientists find defect in new heavy lift space rocket enginehttps://www.reuters.com/article/us-russia-space-defect/russian-scientists-find-defect-in-new-heavy-lift-space-rocket-engine-idUSKCN1PC1F8Quoteengines of the Angara A5 could produce low frequency oscillations that could ultimately destroy the rocket.A special valve had been fitted to mitigate the issue, but in some cases the oscillations continued, it said. Energomash did not immediately reply to a request for comment.Edit: RIA article (Russian) https://ria.ru/20190118/1549528681.html
Quote from: SciNews on 01/18/2019 12:16 pmRussian scientists find defect in new heavy lift space rocket enginehttps://www.reuters.com/article/us-russia-space-defect/russian-scientists-find-defect-in-new-heavy-lift-space-rocket-engine-idUSKCN1PC1F8Quoteengines of the Angara A5 could produce low frequency oscillations that could ultimately destroy the rocket.A special valve had been fitted to mitigate the issue, but in some cases the oscillations continued, it said. Energomash did not immediately reply to a request for comment.Edit: RIA article (Russian) https://ria.ru/20190118/1549528681.htmlThe Russian article says (according to Google Translate) that the problem is occurring on the center core when it is throttled down to very low thrust levels.
Didn't Angara supposed to have side boosters flyback? With fold out wings?
Press release from NPO Energomash (Russian) http://engine.space/press/pressnews/2648/
Anybody know what the "Amur" vehicle is?
The reports, which appeared in the mass media about the defect in the engines of "Angara" LV, contain unreliable information,
The titanium balloon cylinders and receivers produced at the Voronezh Mechanical Plant as part of import substitution (previously produced in Ukraine), underwent ground testing at the Salyut Design Bureau and are ready for flight tests in the Angara LV.The planned production volume of VShM balloon-balloons for 2019 will be 208 units (176 cylinders of 130 liters, 6 cylinders of 25 liters, 26 receivers of 25 liters). The share of TSHB and receivers from the total production of special equipment at Vyksa Steel Works will be about 15%.The production of titanium ballons at the Voronezh Mechanical Plant is included in the draft state program of the military-industrial complex for 2018-2025. with the beginning of budget financing in 2019. In order to meet the prospective need for TSHB and receivers PO “Flight” - a branch of “GKNPTs them. M. V. Khrunicheva ”(for the Angara LV) The Voronezh Mechanical Plant plans to reconstruct and create specialized industry production (with a total area of 6340 m²) with a capacity of at least 350 TSH per year using advanced high-performance robotic equipment.
Too late, too expensive this rocket...
