RD-193

RD-193 (РД-193)

Country of origin	Russia
Date	2011 [1]
Designer	NPO Energomash
Application	Main engine
Predecessor	RD-191
Liquid-fuel engine
Propellant	LOX / RP-1
Cycle	Oxidizer-rich staged combustion
Configuration
Chamber	1
Performance
Thrust, vacuum	2,085 kN (469,000 lbf)
Thrust, sea-level	1,920 kN (430,000 lbf)
Thrust-to-weight ratio	103
Specific impulse, vacuum	337.5 s (3.310 km/s)
Specific impulse, sea-level	311.2 s (3.052 km/s)
Dimensions
Length	3.02 m (9 ft 11 in)
Diameter	2.1 m (6 ft 11 in)
Dry mass	1,900 kg (4,200 lb) [2]

The RD-193 (Russian : Ракетный Двигатель-193, romanized: Raketnyy Dvigatel-193, lit.  'Rocket Engine 193') is a high performance single-combustion chamber rocket engine, developed in Russia from 2011 to 2013. It is derived from the RD-170 originally used in the Energia launcher.

The RD-193 is fueled by a kerosene / LOX mixture and uses an oxygen-rich staged combustion cycle. RD-193 was proposed as a replacement for the NK-33, which is being used in the Soyuz-2-1v vehicle. ^[1]

Design

The engine is a simplified version of the RD-191, omitting the swing assembly chamber and its related structural elements, thus reducing size and weight (300 kg) and lowering cost. ^[3]

See also

• Comparison of orbital rocket engines

References

1. Zak, Anatoly. "RD-193". russianspaceweb.com. Retrieved 2015-06-04.
2. "В России создан новый ракетный двигатель". ВПК. 2013-04-08. Archived from the original on 2013-04-14. Alt URL
3. Огнев В. (2013). "Универсальный ракетный двигатель РД-193. Мнение инженера-разработчика". Журнал «Новости космонавтики». Archived from the original on 22 February 2020.