• In a July 1973 feature, “New USAF Caseless Ammo Gun System,” Mark Triffault wrote of the GAU-7/A, a “revolutionary new gun and feed system” for the F-15, which used a 25mm Gatling gun with five rotating barrels. The projectile was…“embedded in a cylindrically-shaped mass of propellant, which is fully telescoped to facilitate stacking.” Each round weighed less than a pound because the propellant “consumes itself completely during firing, leaving no empty shell casing in the aircraft.” How did the system perform? Alas, due to “development problems,” the proposal was scrapped in 1974, and the F-15 hit the skies fitted with the standard M61 Vulcan gun.
  • Flashback Friday-July 1973

    Arm Yourself with Information “The only thing new in the world is the history you do not know,” said Harry Truman, so we crack open the Gun World archives each month to see if there’s anything we can learn. This … Continue reading »