The Solid Fuel Ducted Ramjet (SFDR) was thought to be only an Air-to-Air Missile, but a schematics from a DRDO show a ground launched variant of SFDR. The 250 kg SFDR missile is mounted on a large 450 kg booster. An official missile poster put on display by DRDO mentions XR-SAM, although no further information was provided. Saurav Jha, a prominent Indian Defence Journalist confirmed that DRDO’s XR-SAM have the same range capability to that of S400 system’s 48N6 SAM boasting a range of 250km. The Ground Launched SFDR Missile (GL-SFDR) can easily attain a range of 250 km, which matches the range capability of ongoing DRDO Project XR-SAM.
Other sources report that XR-SAM is actually a spin-off of the AAD-1 endo-atmospheric interceptor. XRSAM will be used to bridge the gap between MR-SAM (70 km) and S-400 (400 km) Air Defence System and will be using spin-off technologies developed for countries Anti-Ballistic missile Defence system
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