Liquid propellant rocket engine without gas generator.
The first engine in Russia, made according to a non-generator scheme. The world's first LRE, made according to an independent two-shaft fuel component supply scheme with sequential gas supply to turbines. This circumstance made it possible to demonstrate the efficiency of the feed system with optimal characteristics of the units. The engine consists of low-speed pre-pumps that ensure the engine's performance at low tank pressures of the components.
RD-0146/RD-0146D Engine Modernization Program.
In 1997, according to the technical task of the Khrunichev State Research and Development Center, the RD-0146 with a high-altitude nozzle was started for promising variants of the Proton and Angara rocket launchers.
A mock-up of the RD-0146 engine was demonstrated at the Aerospace 2000 exhibition.
In 2001, one of the copies of RD-0146 was sent to Pratt-Whitney by agreement.
Since 2008, KBHA has been developing the RD-0146D oxygen-hydrogen main engine for use in the upper stage of the heavy class of the Angara-A5 PH. RD-0146D has the ability to switch on multiple times during the flight. The engine includes an uncooled nozzle consisting of stationary and moving parts.
The First RD-0146D1 Hot Fire Test
December 30, 2021