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PT Boats of WWII
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PT Boats - General
Post a reply to: Elco 80 differances
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[StartQuote] Robin: Many changes took place from the first lauching of the 103 Class Elco. Steve has done an excellent job in giving you the information. The early boats of course had no Radar, so this was a big change in getting the SO Radar Dome on the boats giving them the eyes they needed in the dark. The early boats only had the twin 50 caliber guns and one 20MM Cannon on the Stern, the early MK-8 Torpedoes in Launching Tubes, and of course Depth Charges, with Smoke Generator. Seeing the need for better weapons, the boats top-side started to add 20MM Cannons, 37MM Cannons, and 40MM Cannons to their arsonal. Many Crews also added extra 50 and 30 caliber weapons where they could. These were mounted atop long pipes Port and Starboard, usually in between the torpedoes, which by the way were upgraded to the MK-13's with roll-off racks, getting rid of the need for the launching tubes. Some boats even had Mortors on the Bow and much later 5 inch rockets, were added giving the boats the punch of a destroyer. Below decks of course stayed pretty much the same, although what was once used as a day room would now be used to berth more Crew. The engines HP Output was increased, but the Packard design stayed the same with the 4M-2500 V-12's. Later this would be changed to the 5M-2500 packard Engine. Later all engines would be hooked up to the direct drive system. Why Elco never increased the size of the engine room is beyond me. They certainly had the tecnology. It seems that the engineers were less thought of then the comfort of the crew, because lets face it, the Crews-Quarters of an Elco PT Boat was just awesome. Spacious, Roomy, Comfortable, call it what you will it was the best on any small boat built during the War. [EndQuote]
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