The fourth solid-propulsion stage of ISRO’s SLV-3, using HEF-20 propellant. ISRO’s historical overview does not publish a narrower motor model here, so this remains an integrated stage identity.
The fourth solid-propulsion stage of ISRO’s SLV-3, using HEF-20 propellant. ISRO’s historical overview does not publish a narrower motor model here, so this remains an integrated stage identity.