Isro tests new 30 kN hybrid motor | India News

NEW DELHI: The Indian space research organisation (Isro) has said it successfully tested a hybrid motor at the Isro Propulsion Complex (IPRC), Mahendragiri, on September 20.
The VSSC conducted the test with support from Liquid Propulsion Systems Centre (LPSC).
“The motor used Hydroxyl-terminated polybutadiene (HTPB) as fuel and liquid oxygen (LOX) as the oxidizser. Unlike solid-solid or liquid-liquid combinations, a hybrid motor uses solid fuel and liquid oxidiser,” Isro said.
The test of a flight equivalent 30 kN hybrid motor demonstrated ignition and sustained combustion for the intended duration of 15 seconds, the agency said, adding that the motor performance was satisfactory.
“The use of liquids facilitates throttling and the control over the flow rate of LOX enables the re-start capability. While both HTPB and LOX are green, LOX is safer to handle,” Isro said.
The hybrid motor tested is scalable and stackable, potentially paving the way for a new propulsion system for the forthcoming launch vehicles.


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