ISRO Tests Third Biggest Rocket Motor
Indian Space Research Organisation has successfully tested the third biggest solid rocket motor in the world after the booster rocket of Nasa's space shuttle and Arianespace's Ariane-5 launch vehicle. The Isro rocket motor is 22 metres long and 3.2 metres in diameter.
The rocket was tested on ground on Sunday at Sriharikota, Isro's biggest and most powerful rocket motor called S-200, powered by 200 tonnes of solid propellant. This is a vital step in the development of its Geosynchronous Satellite Launch Vehicle Mark-III (GSLV Mk-III), which will put a satellite weighing 4 tonnes in orbit.
N Narayana Moorthy, project director, GSLV Mk-III, described the test as a big success. The firing of the motor began at 8 am at the test bed at the Satish Dhawan Space Centre and lasted its full duration of 130 seconds. The performance was exactly as predicted with nearly 600 parameters being monitored. During the test, the motor produced a peak thrust of 500 tonnes.
Isro scientists have said that the design, development and successful realisation of the motor was entirely an indigenous effort of the Vikram Sarabhai Space Centre, Thiruvananthapuram, and the SDSC, Sriharikota, in collaboration with public and private sector industries. The preparation and casting was done at the newly built Solid Propellant Plant at Sriharikota. V Srinivasan is the Project Director of the S-200 motor programme.
Two S-200 motors will hug the core liquid stage of the GSLV Mk-III rocket, which will also be propelled by a powerful cryogenic engine. The GSLV Mk-III which is at an advanced stage of development will weigh 630 tonnes and will be 43.5 metres tall.
Isro tests third biggest rocket motor - India - The Times of India