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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; THE MOST OBVIOUS CHANGES FROM THE ORIGINAL PT 103 CLASS BOAT AND THE LATER ELCO BOATS IS THE POSITION AND RAKE OF THE .50 CAL. MACHINE GUN TURRETS (BARBETS). THE EARLY BOATS HAD THE GUN MOUNT ROTATION RINGS LEVELED WITH THE WATERLINE AND THE LATER ONES HAD THEM LEVELED WITH THE WATERLINE AT ABOUT HALF SPEED. EARLY STARBOARD BARBETS WERE FARTHER FORWARD THAN THE LATER ONES. THIS WAS AN IMPROVEMENT FOR COCKPIT VISIBILITY. THE STARBOARD COCKPIT SPRAY SHIELD ON THE '103' CLASS WAS RADIUSED. THE LATER ONES CAME TO A RIGHT ANGLE. ON MOST BOATS, AFTER ABOUT MID 1943, THE ARMORED BULKHEAD IN THE COCKPIT WAS REMOVED. IN THE COCKPIT, THE NEWER BOATS HAD THE THROTTLE AND FIRING BOARD LOCATIONS REVERSED, SO THE SKIPPER COULD USE THE THROTTLES. THE ENGINE ROOM HATCH BETWEEN THE TWO VERSIONS WERE VASTLY DIFFERENT. THE EARLIER ONES HAD FOUR COWLED VENTILATORS AROUND AN ANGLED AND RAISED HATCH WAY. THE LATER ONES HAS A LARGE RAISED AIR SCOOP. I BELIEVE THAT THE MUFFLER DESIGN HAD CHANGED, ALSO. IF I'VE LEFT ANYTHING OUT, I'M SURE THE OTHER MEMBERS WILL HAVE SOMETHING TO ADD. OH, YES! THE FORWARD BARBET HAD A REVERSED CUT-OUT NEAR THE BASE ON THE STARBOARD SIDE TO ALLOW MORE FOOT ROOM IN PASSING. I HOPE THIS IS HELPFUL TO YOU. SMOOTH SAILING. Steve Tuhy[EndQuote]
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