Dhawan II engine

Dhawan II engine

News: Recently, a private space vehicle company Skyroot Aerospace test-fired its 3D-printed Dhawan II engine.

 It is a 3D-printed cryogenic engine developed by the Skyroot Aerospace for its heavier vehicle, the Vikram II rocket.
 It uses a 3D-printed torch igniter and bellows actuated cryo-injection valve with a quick response time.
 It utilises two high-performance rocket propellants, liquid natural gas (LNG) and liquid oxygen (LoX), which require cryogenic temperatures (below -150° Celsius) for storage and operation.
 A cryogenic upper stage enhances the payload-carrying capacity of a rocket.
 The cryogenic engine series is named in honour of Dr Satish Dhawan, an Indian rocket scientist.

What is 3D printing?
 3D printing or additive manufacturing is a process of making three-dimensional solid objects from a digital file.
 The creation of a 3D-printed object is achieved using additive processes.
 In an additive process, an object is created by laying down successive layers of material until the object is created. Each of these layers can be seen as a thinly sliced cross-section of the object.
 3D printing enables you to produce complex shapes using less material than traditional manufacturing methods.

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