SC120-LOX

Subject – Defence and Security

Context – HAL delivers heaviest propellent tank to ISRO

Concept –

The heaviest semi-cryogenic propellant tank (SC120¬ LOX) ever fabricated by Hindustan Aeronautics Limited (HAL) has been delivered to the Indian Space Research Organisation (ISRO).
The semi cryo-liquid oxygen (LOX) tank — the first developmental welded hardware — is a part of the SC120 stage intended for payload enhancement by replacing the L110 stage in existing Mk-III launch vehicle, said a release from HAL.
Last year, HAL had delivered the biggest ever cryogenic liquid hydrogen tank (C32-LH2), four meters in diameter and eight meters in length.
HAL has delivered critical structures, tankages, satellite structures for the PSLV, GSLV-Mk II and GSLV-Mk III launch vehicles.