![]() Ship power was from two Superior model MRDB-8 200 HP Diesel engines with two propellers, 640shp. For service power, the ship had two generators: one 30Kw Diesel engine to electric generator and one 20Kw Diesel Generator. The ships had a diving gear locker for the crew salvage work. The ship housed a crew of one Officer and 15 Enlisted men. The crane was powered by a 6-cylinder Cummins Diesel engine. The crane had a boom of 54 feet with a lifting capacity of 10 tons. The ship had one American Hoist & Derrick model 685 rotating crane. They had a top speed 10 knots, built with a steel hull. The YSD-11 Class had a length 104 feet a beam of 31 feet and 2 inches a draft of 4 feet. ![]() The YSD-11 Class Derrick was built to support World War 2, having a displacement of 220 tons no load and 270 tons loaded. Other seaplanes built in mass production were the 1,366 Martin PBM Mariner, 749 Short Sunderland and 345 Grumman G-21 Goose. ![]() The US had 2,661 Consolidated PBY Catalina built for the war, Canada built 620. YSD-11s were used to remove broken seaplanes from the water for repair or regular maintenance. Hull classification symbol YSD is for Yard Seaplane Dirrick, Yard as in ship repair yard. While listed to service seaplanes the crane was able to lift small boats and large engines also. ![]() YSD-11 Class Seaplane Wrecking Derrick is a class of US Navy derrick crane ship. ![]()
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