Why fell Protons: In the engines of Russian missiles, the precious metals were replaced by cheaper counterparts

Roscosmos recall all engines of the second and third stages of the carrier rockets “proton-M” units manufactured by the Voronezh mechanical factory (VMZ), have not been technological to the test during the fire tests. About it reports “Tape.ru” with reference to sources in the Russian rocket and space industry.

Problems during testing were identified in the RD-and RD 0210/0211-0213/0214 installed on the second and third stage of the rocket “proton-M”, respectively.

“During testing it was found that during the Assembly of the first products in place of materials containing precious metals, which should be applied on this type of engines were used less heat-resistant components“, – reports the edition.

It also became known that such “non-liquid components” was used in all the engines of the second and third stage of “proton-M”, released on VMZ over the past few years.

It is noteworthy that the quality control exercised on the subsidiary of the “Center Khrunichev”, during this time did not reveal such infractions.

It is reported that an investigation into the use of “non-liquid components” in rocket engines joined the Federal security service of Russia, the Russian Prosecutor’s office and the Investigative Committee of the Russian Federation.

Check VMZ will lead to the postponement of the launch of “proton-M”. The first launch vehicle in 2017 will not happen before June, although detection problems with engines was scheduled for February.

We will remind, on December 1, Russian space Agency Roscosmos lost contact with the running carrier rocket “Soyuz-U” with a cargo spacecraft “Progress MC-04” on Board 6 minutes after start-up.

It became known later that it became known that on the territory of the Republic of Tuva (Russia) fell the wreckage of the Russian spacecraft “Progress”. As noted, most of the fragments burned in the dense layers of the atmosphere. The social network responded to this rapid reaction.