icon bookmark-bicon bookmarkicon cameraicon checkicon chevron downicon chevron lefticon chevron righticon chevron upicon closeicon v-compressicon downloadicon editicon v-expandicon fbicon fileicon filtericon flag ruicon full chevron downicon full chevron lefticon full chevron righticon full chevron upicon gpicon insicon mailicon moveicon-musicicon mutedicon nomutedicon okicon v-pauseicon v-playicon searchicon shareicon sign inicon sign upicon stepbackicon stepforicon swipe downicon tagicon tagsicon tgicon trashicon twicon vkicon yticon wticon fm

Russia shows off upgraded world’s most powerful rocket engine meant for Soyuz-5

Russia shows off upgraded world’s most powerful rocket engine meant for Soyuz-5
A Russian rocket engine producer has offered a sneak peek of its latest creation, the RD-171MV, which is slated to be part of Russia’s next workhorse launch vehicle and, later, a super heavy-lift rocket.

The RD-170 family is the legacy of the Buran/Energia program, which remains the world’s most-powerful multi-combustion chambered rocket engine. Its producer, NPO Energomash, has adapted it to several launch vehicles over the years, from the two-chamber RD-180 variant for the US Atlas V rocket to the modified RD-171M for the Russian-Ukrainian Zenit-2 launches.

Last month the producer created the first engine meant for the future Soyuz-5 rocket, the RD-171-MV. On Tuesday, Energomash and Roscosmos presented a promo video of the new engine variant, confirming some of its characteristics.

The engine, which has improved overheating protection and a new fully domestically-made fuel and oxygen regulation system, weights 10.3 tons and has a thrust of over 800 kN, slightly more than the RD-171M variant. Its turbines and pumps produce an output of 180 MW, which is comparable to three nuclear-propelled icebreakers.

Soyuz-5, the Russian replacement of the Zenit and Proton medium-lift rockets as well as the future launch vehicle for manned low-earth orbit missions, will have a single RT-171MV powering its first stage. The rocket is expected to make its maiden flight in 2022. A variant of the Soyuz-5 is considered as the vehicle to revive the frozen Sea Launch program, which is currently owned by a private Russian company.

Also on rt.com Tsar-rocket: Russia starts developing ultra-heavy Soyuz-5 launch vehicle

The engine may also be used in a future family of heavy and super heavy-lift launch vehicles, which would have three or six RS-171MVs for its first stage depending on configuration.

Think your friends would be interested? Share this story!

Dear readers and commenters,

We have implemented a new engine for our comment section. We hope the transition goes smoothly for all of you. Unfortunately, the comments made before the change have been lost due to a technical problem. We are working on restoring them, and hoping to see you fill up the comment section with new ones. You should still be able to log in to comment using your social-media profiles, but if you signed up under an RT profile before, you are invited to create a new profile with the new commenting system.

Sorry for the inconvenience, and looking forward to your future comments,

RT Team.