“Roscosmos” found in the engines of “proton-M” bad solder RBC

Yesterday 19:22

Anastasia Yuditskaya

“Roskosmos” found in the engines of “proton-M” bad solder

the Installation of a space rocket “proton-M” at the launch complex of the cosmodrome Baikonur.

Photo: TASS

Check the engine of the second stage of the carrier rocket “proton-M” revealed that the production was used more expensive solders with the content of precious metal, which does not match the design documentation

in the production of the second stage engine of the carrier rocket “proton-M” was used a solder that does not match the design documentation. To such conclusion came in the “Roskosmos” after the next test engine, reports “Interfax”.

the Corporation noted that the operation of the engine. “However, a detailed analysis revealed the use in the manufacture of solders, not in accordance with the design documentation. Instead of the standard were applied to other, more expensive solders with the content of precious metals”, — quotes Agency the message of “Roscosmos”.

In this regard, Roskosmos decided to check the engines. Specialists of the state Corporation, Voronezh mechanical plant (VMZ) and the NGO “Energomash” deal with the number of engines, which also used this solder. In Roscosmos said that the number affected by the recall engines is premature.

Earlier, on January 25 in Roscosmos said that the conduct a comprehensive audit of the quality of products manufactured in the industry. With this the Corporation linked delayed launches of carrier rockets “proton”. Earlier Wednesday, the newspaper “Kommersant” with reference to several top-managers of enterprises of the space industry reported that at the Voronezh mechanical plant has been revoked, all the engines of the second and third stages of the carrier rockets “proton-M”, which was released over the past few years.

the sources said that during the tests one of liquid engines of the second stage of the launch vehicle have been identified technological problems. As wrote the edition, during Assembly of the engines instead of materials using precious metals used “non-liquid components”, which turned out to be less heat resistant.

In may of 2015, the carrier rocket “proton-M” with the Mexican telecommunications satellite Mexsat-1 fell on the 498-th second of the flight after the emergency shutdown of the engine. Roskosmos said the cause of the accident the failure of the steering engine of the third stage.