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aspqrz02 -> RE: Amphibious invasion of Pearl Harbor - results (1/15/2010 6:34:41 AM)
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quote:
ORIGINAL: Mynok It appears that the Japanese used their barges as landing craft. Using the Daihatsu as a baseline, which has a capacity of 120 that's 120 men per craft. According to Wikipedia, the Daihatsu 14m class could carry - 1 Type 95 7.4 ton tank or 70 men or 10 tons cargo And had a range of 50 nm @ 8.5 kts (top speed) or 100 nm @ 7.5 kts. (The Moku Daihatsu or 15m landing craft resembled the Allied LCVP, with a bow ramp that was lowered on hitting the beach. Unlike other Japanese landing craft, the Moku Daihatsu had a wooden hull, constructed of 0.4" (10mm) 5-ply plywood on oak frames and floors, thereby economizing on scarce steel. The hulls were weak and the wood quickly decomposed in the tropics, so that the craft were relegated to logistical support in calm waters. The Navy ordered 1140 of these craft, but it is not known how many were actually completed.) -- from http://pwencycl.kgbudge.com/M/o/Moku_Daihatsu_class.htm Unless you are referring to the Daihatsu 17m class which could carry - 1 Type 97 15.6 ton tank or 100 men or 16 tons cargo Over the same range (again, according to Wikipedia) (The Toku Daihatsu or 17m landing craft (Army Type N-L-BD) resembled the Allied LCVP, with a bow ramp that was lowered on hitting the beach. It was essentially a larger version of the Daihatsu and was built of welded steel. The Navy ordered 163 of these craft, but it is not known how many were actually completed (though at least 35 were built in 1943-44). These craft were used extensively to run troops and supplies to isolated garrisons in the Solomons and elsewhere. The Japanese referred to these operations as "ant runs." As the war progressed, Allied air forces and PT boats became adept at intercepting and destroying these craft.) -- http://pwencycl.kgbudge.com/T/o/Toku_Daihatsu_class.htm But the 17m model doesn't seem to have been available in any numbers, certainly not in early 1942! Then there's the ... The Chuhatsu or 13m landing craft was a smaller version of the Daihatsu used by the Japanese Navy. It resembled the Allied LCVP, with a bow ramp that was lowered on hitting the beach. It was used as a ship's boat for cruisers and for transporting aircraft. -- http://pwencycl.kgbudge.com/C/h/Chuhatsu_class.htm With a capacity of 60 men or 10 tons. Or the Daihatsu Class ... The Daihatsu or 14m landing craft (Army Type LB-D) resembled the Allied LCVP, with a bow ramp that was lowered on hitting the beach. However, the Daihatsu was less boxy than an LCVP, giving it better seakeeping. It had a welded steel hull and was powered by a diesel engine. It was often field-modified to carry addition weapons of up to 37mm caliber, and the crew compartment was often protected with improvised armor. The Navy ordered 3229 of these craft, but it is not known how many were actually completed (though at least 40 were built in 1942). The craft were so frequently encountered by Allied forces in the South Pacific, where they played an important logistical role, that actual construction must have been closer to the figure of 3229 than 40. Postwar the U.S. Navy Technical Mission determined that 85% of all Japanese landing craft were of this type. Allied destroyers had a difficult time intercepting Daihatsu traffic in the Solomons. The improvised armor kept 40mm fire from being fully effective, and the landing craft were difficult targets for 5" guns because of their small size and high maneuverability. -- http://pwencycl.kgbudge.com/D/a/Daihatsu_class.htm Which had a capacity of 1 Type 95 7.4 ton tank or 70 men or 10 tons cargo So it would seem likely that the Japanese landing craft available for the PH operation in early 42 would have overwhelmingly been rated at only slightly over half of the troop capacity you are assuming. Slows things down considerably, eh? [;)] Phil McGregor
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