6"/53 caliber gun 6"/53 caliber gun The 6"/53 caliber gun (spoken "six-inch-fifty-three-caliber") formed the main battery of some United States Navy light cruisers and three US submarines built during the 1920s. United States naval gun terminology indicates the gun fired a projectile 6 inches (15 cm) in diameter, and the barrel was 53 calibers long (barrel length is 6 inch x 53 = 318 inches or 8 meters.) The gun with side swing Welin breech block and Smith-Asbury mechanism weighed about 10 tonnes and used a silk bag containing 44-pounds (20 kg) of smokeless powder to give a 105-pound (47.6 kg) projectile a
RTÉ Sports Person of the Year RTÉ Sports Person of the Year The RTÉ Sports Person of the Year Award is the titular award of the RTÉ Sports Awards ceremony, which takes place each December. The winner is the Irish sportsperson (from the island of Ireland) judged to have achieved the most that year. The winner was originally chosen by a special panel of RTÉ journalists and editorial staff, but was selected by a public vote from a pre-determined shortlist in 2016. The first Irish sports award ceremony took place in 1985, and was closely modelled on the BBC Sports Personality of the Year Award. Three