The Indian Space Research Organisation (ISRO) on Wednesday announced an effective demonstration of the capability of its work-horse launch-vehicle engine, ‘VIKAS’, with regards to throttle control.
According to ISRO, the first throttling demonstration hot test of the Vikas engine was successfully accomplished on 30, January 2023 for a targeted 67 per cent thrust level throttling for a duration of 43 seconds.
The space agency stated throttling of the engine was achieved by a closed-loop thrust regulation system and the engine had a successful throttle from the chamber pressure of 58.5 bar in steps of 50 bar, 45 bar and 40 bar, dwelling at each pressure level for 7 seconds.
It added the Vikas engine was also throttled down to 45 per cent for the last 3 seconds before the engine shut down.
ISRO claims satisfactory expected performance from the throttleable VIKAS engine.