Skyroot: Kalam-250 is a high-strength carbon composite rocket motor, which uses solid fuel and a high-performance ethylene-propylene-diene terpolymers (EPDM) thermal protection system (TPS).
India's Space start-up Skyroot today said it has test-fired the stage-2 of the Vikram-1 rocket, which is expected to place a satellite in orbit later this year.