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Located on the forward deck is the 5-inch (127 mm) Mark 45 gun. Directed by the Mark 34 Gun Weapon System, it can be used in anti-ship, anti-air, and naval gunfire support (NGFS) roles. It can fire 16–20 rounds per minute and has a range of 13 nautical miles (24 km). [N 4] [69] Arleigh Burkes can stow 680 5-inch rounds. [70] [67]
An alternative to the steam turbine engine is the dual-fuel marine diesel engine. Commercial ship propulsion system manufacturers such as Finland's Wärtsilä and Germany's MAN Diesel are producing large bore dual-fuel diesel engines. The MAN B&W ME-GI Engines have extremely flexible fuel modes that range from 95% natural gas to 100% HFO and ...
However, its engine proved to be an excellent marine engine following trials in a rowing gig in 1906. Car manufacture was abandoned, and the company began to specialize in marine engines. In 1907, the company installed one of its engines in a fishing boat, and in 1908 produced its first purpose-designed marine engine.
The 5-inch (127 mm)/54-caliber (Mk 45) lightweight gun is a U.S. naval artillery gun mount consisting of a 5 in (127 mm) L54 Mark 19 gun on the Mark 45 mount. [1] It was designed and built by United Defense , a company later acquired by BAE Systems Land & Armaments , which continued manufacture.
The required funnel cross-sectional area is determined by the volume of exhaust gases produced by the propulsion plant. Often this area is too great for a single funnel. Early steam vessels needed multiple funnels (SS Great Eastern had 5 when launched), but as efficiency increased new machinery needed fewer funnels.
Diesel engines soon offered greater efficiency than the steam turbine, but for many years had an inferior power-to-space ratio. The advent of turbocharging however hastened their adoption, by permitting greater power densities. Diesel engines today are broadly classified according to Their operating cycle: two-stroke engine or four-stroke engine