The cryo-engine assembly consists of a main engine and two steering engines capable of developing a nominal thrust of 7.5 tonnes in a vacuum with a specific impulse of 461 seconds. he main engine develops a thrust of 7.1 tonnes and each steering engine develops a thrust of 200Kgf. The cryo-engine works on staged combustion cycle. The cryogenic engine of all welded construction. The main engine is regenerative cooled and turbo pump fed and has a dump cooled nozzle extension with an area ratio 200.the two steering engines are mounted diametrically opposite at the side of main engine and can be gimbaled in both planes to a maximum of 37 degrees on either direction for the vector control. The engine has mixture ratio controller and a thrust regulation system to maintain a required mixture ratio and control the thrust level

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　　　　　　　　　The cryo-engine assembly consists of a main　engine and two steering engines capable of developing a nominal thrust of 7.5 tonnes in a vacuum with a specific impulse of 461 seconds. he main engine develops a thrust of 7.1 tonnes and each steering engine develops a thrust of 200Kgf. The cryo-engine works on staged combustion cycle. The cryogenic engine of all welded construction. The main engine is regenerative cooled　and turbo pump fed and has a dump cooled nozzle extension with an area ratio 200.the two steering engines are mounted diametrically opposite at the side of main engine and can be gimbaled　in both planes to a maximum of 37 degrees on either direction for　the vector control. The engine has mixture ratio controller and a thrust regulation system to maintain a required mixture ratio and control the thrust level