TM 5-1940-277-34 NOMENCLATURE Boat, Bridge Erection, Twin Jet, Aluminum Hull HULL Manufacturer Allday Aluminum MK1 Limited, Gosport Hampshire P012 4DT England MK2 American Development Corporation (ADCOR) 1930 Hanahan Road North Charleston, SC 29406 Length (overall) 322.8 inches (820 cm) Width (overall) 98 inches (249 cm) Height (with cab) 109.8 inches (279 cm) Height (without cab) 77.9 inches (198 cm) Weight 8800 lbs. (4000 kg) Construction Welded aluminum ENGINE Sabre Engines Ltd. Manufacturer Ferndown Industrial Estate, Wimborne Dorset, England Model 212 Maximum rpm (no load) MK1 2800 rpm MK2 2900 rpm Shaft horsepower 212 @ 2500 rpm 50 1358 lbs. (with trans- Weight (dry) mission) (616 kg) No. of cylinders 6 Bore 4.125 inches (105 mm) Stroke 4.524 inches (115 mm) Total displacement 363 cubic inches (5.95 liters) Counterclockwise (as viewed from fly- wheel) Firing order 1, 5, 3, 6, 2, 4 Compression ratio 14.7 to 1 Compression pressure (min) 300 psig Valve clearance (hot) 0.018 inch No. of main bearings 7 Upper main bearings Grooved, oil feed holes, steel backed aluminum tin liners Lower main bearings Groove in center and rear liners only, steel backed alumi- num tin liners Sliding vane type Oil pump camshaft driven Change 3   1-7