376 ELECTRIC FREIGHT CONVEYERS FOR LOADING AND UNLOADING VESSELS. THE McCABE ELECTRIC CONVEYER. New Navy 12-inch Gun at Indian Head—Muzzle velocity 2854 foot-seconds; muzzle energy 47994 foot-tons ; foot-tons of energy per ton of gun 893; powder pressure 166 tons per square inch. THE HOST POWERFUL 12-INCH 40-CALIBER GUN IN EXISTENCE., scientific american, 1900-12-15
376 ELECTRIC FREIGHT CONVEYERS FOR LOADING AND UNLOADING VESSELS. THE McCABE ELECTRIC CONVEYER. New Navy 12-inch Gun at Indian Head—Muzzle velocity 2854 foot-seconds; muzzle energy 47994 foot-tons ; foot-tons of energy per ton of gun 893; powder pressure 166 tons per square inch. THE HOST POWERFUL 12-INCH 40-CALIBER GUN IN EXISTENCE., scientific american, 1900-12-15
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