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Raman Engine

From Wikipedia, the free encyclopedia
Raman
3D Printed Raman Engine
Country of originIndia
StatusUnder Development
Liquid-fuel engine
PropellantN2O4 / UDMH
Performance
Thrust850 N (190 lbf)

Raman Engine is a bipropellant rocket engine manufactured by Skyroot Aerospace that will be used in its Vikram family of rockets.[1] It is named after Indian Nobel laureate Sir C.V. Raman.

Description

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It uses UDMH and NTO hypergolic propellants.[2] Its injector plate is completely 3D printed. This engine will be used in a cluster of 4 in the fourth stage of the Vikram 1 rocket, which can produce a thrust of 3.4 kN each producing 850 N of thrust, which is lower than many other rocket engines, but is required for precise orbit adjustments.[3][4]

Development and Testing

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  • On 12 August 2020, Skyroot Aerospace successfully tested the engine for the first time.[5]
  • Skyroot Aerospace tested the Raman-2 engine, designed for vacuum conditions, by firing it for 200 seconds on a ground test stand. The team used water injection to mitigate flow separation in the vacuum-optimized nozzle, allowing accurate testing at sea level. This test provided critical data for the Vikram-1 rocket's fourth stage, advancing India's private space efforts. [6]

References

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  1. ^ "First Indian start-up firm Skyroot Aerospace to test fire rocket engine 'Raman': All you need to know". Jagranjosh.com. 2020-08-17. Retrieved 2022-01-25.
  2. ^ Skyroot Aerospace: Raman Engine Test Fire, retrieved 2022-01-25
  3. ^ "With ISRO assistance, India's Skyroot Aerospace aims maiden rocket launch by Dec-2021". WION. Retrieved 2022-01-25.
  4. ^ Exclusive Details of Skyroot's Raman Engine, retrieved 2022-01-25
  5. ^ Narasimhan, T. E. (2020-08-12). "Skyroot Aerospace first private company to test upper stage rocket engine". Business Standard India. Retrieved 2022-01-25.
  6. ^ "Skyroot Aerospace Successfully Tests Raman-2 Engine with Water Injection for Vikram-1 Rocket". twitter.com. 18 April 2025.{{cite web}}: CS1 maint: url-status (link)