The NK-33 (GRAU index: 14D15) and its vacuum-optimized variant, the NK-43, were rocket engines developed in the late 1960s and early 1970s by the Kuznetsov Design Bureau for the Soviet space program's ill-fated N1 Moon rocket.

A legendary NK-33 (14D15) rocket engine was originally developed to carry Soviet cosmonauts on their way to the Moon onboard a giant N1 rocket. After the ill-fated lunar effort was aborted in 1974 , dozens of already manufactured NK-33s ended up in storage.

Feb 6, 2025 · With the launch of the Soyuz 2.1v on February 5th, the last NK-33 engine, originally designed for lunar flights, flew from the Plesetsk Military Cosmodrome

NK-33 was tested at thrust of up to 204 t, variations of components ratio up to 20% and total burning time up to 1200 sec. Mothballed, never flown until selected by Kistler for their commercial launch vehicle in 1996.

The NK-33 engine, a 350,000 Ibf thrust class liquid oxygen/kerosene staged combustion engine, was designed and manufactured in the 1960s by the Russian design bureau now known as N.D. Kuznetsov SSTC.1 The NK-33 engine was a flight qualified, significantly upgraded version of the NK-15, the engine that supplied the main

Sep 13, 2016 · The NK-33 engines were originally built for the Soviet Moon Rocket, the N-1. (Under the designation of NK-15, and NK-15V for the high altitude version). This design was a direct result of a blazing row between the Chief Designer, (Sergey Korolev), and the best rocket engine designer, Valentin Glushko.

The NK-33 and NK-43 rocket engines are the highest performing Liquid Oxygen/ Kerosene ever produced. They are upgraded versions of the the NK-15 and NK-15B engines which flew on the first four flights of the N-1 Soviet Moon Rocket.

Aug 22, 2012 · American Institute of Aeronautics and Astronautics 12700 Sunrise Valley Drive, Suite 200 Reston, VA 20191-5807 703.264.7500

Aug 31, 2009 · This fall, Aerojet is planning a long-duration, high-power test firing of the NK-33 in Samara, Russia. Scheduled for late September or early October, the test could raise confidence in the...

Variants of the Soviet rocket engine Kuznetsov NK (parameters and images) The NK engines are the first Russian engines with a closed cycle. The second generation of these engines (NK-33, NK-43), intended for the N-1F, have been improved. They are …