National Geographic : 1946 Jun
U.S.Navy, Official Swoosh! Swoosh! Swoosh! Four New LSM(R)s Stand Off Okinawa Firing 1,020 Five-inch Rockets aMinute Twelve Landing Ships, Medium (Rocket) drenched Okinawa's beaches with 30,000 missiles. Dismayed, the defenders drew outofrange, permitting easy landings. The Japanese radio announced: "The American Navy has a new weapon-a small battleship." Each of these LSMs has 85 automatic launchers firing new spin-stabilized rockets.