EnginesNews See also Pratt & Whitney Canada ModelsR-1340-40600har.1 R-1340-57har.4 R-1840-AN1600hrp-1 R-2800 Double Wasp200061 , s-56 R-985 Wasp Junior300Sycamore 1 , s-51 T73 T73-P-14500ch-54a , s-64 T73-P-7004800ch-54b