with a larger fan and dual channel FADEC unit. FJ44-3A-24 thrust, derated -3A. FJ44-3AP thrust. FJ44-4A thrust, released in 2007, hi-tech fan of larger diameter than the -3 unit. Used on the Cessna CJ4 and the Pilatus PC-24. FJ44-4M Williams-Rolls F129 Military designation for the derated FJ44-1C with 1500lbf (6.672kN) power output. Applications Specification See also References External links Williams International product page Medium-bypass turbofan engines 1980s turbofan engines FJ44 Centrifugal-flow turbojet engines