British ''Grand Slam'' Bomb

By Crusader1307

The so named "Grand Slam" Bomb (officially designated as "Bomb, Medium Capacity 22,000 Pound", was a type of Explosive Ordnance developed by England towards the end of World War II. Designed in 1943, these massive weapons were classified as "Earthquake Bombs". The sheer explosive force produced upon impact generate a seismic reaction of 4 to 5 Points on magnitude (similar to an Earthquake tremblor). Their nickname "Grand Slam" was taken from The American Sport of Baseball. During a Game, all Bases are occupied by Players. A "Batter" strikes a Home Run hit which advances all Players  (including The Batter) - to Home Base for multiple scores (hence a "Grand Slam). The Bombs were massive at 30-feet in length and were 13-feet tall. Additionally, they were 4-feet in diameter. They carried 22,000-pounds of TNT (fused) explosives. This equaled 7-tons). They were considered the most powerful explosive devices just short of The Atomic Bomb. The "Grand Slam" could achieve a speed close to "Super Sonic" when released. At targeted Angle, they reach 1,050-mph. They exploded only upon penetration into their target. This was rated at 130-feet of Earth and 20-feet of non-reinforced Concrete. Only The British Avro "Lancaster" Bomber was robust enough to carry the device (1 each). Bomber Pilots gave them the additional nickname "Ten Ton Tessies". Only 100 were manufactured, with 42 actually deployed against Germany. The Strikes were against Submarine Ports and Docks, as well as Railway/Transportation Depots.