Solid Fuel Ducted Ramjet (SFDR) Technology

On 3rd February 2026, DRDO successfully demonstrated Solid Fuel Ducted Ramjet (SFDR) propulsion technology from Chandipur, Odisha. The test places India among a select group of nations with advanced ramjet capability, enabling long-range, high-speed air-to-air missiles.

What is Solid Fuel Ducted Ramjet (SFDR) Technology?

  • SFDR is an advanced air-breathing missile propulsion system.
  • It uses atmospheric oxygen for combustion instead of carrying an onboard oxidiser (as rockets do).
  • Solid fuel is burned in a controlled manner, producing sustained thrust over a longer duration.

How is It Different from Conventional Rocket Motors?

  • Rocket motors:
    • Burn fuel very rapidly.
    • After burnout, the missile coasts without propulsion.
  • Ramjet-powered missiles:
    • Continue ....
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