Variants
;14R-04:Improved higher performance using 92 Octane fuel. 14N with 2-speed supercharge (6.5:1 and 9:1), LH rotation, for take-off. ;14R-05:RH rotation version of 14R-4. ;14R-08:RPM increased from 2,400 to 2,600 improving power output. LH rotation. ;14R-09:RH rotation version of 14R-08 ;14R-24:LH rotation, . ;14R-25:RH rotation version of 14R-24. ;14R-26:LH rotation, . ;14R-27:RH rotation version of 14R-26. ;14R-28:LH rotation, . ;14R-29:RH rotation version of 14R-28. ;14R-32:LH rotation ;14R-100: ;14R-200:LH rotation ;14R-201:RH rotation ;14R-210: ;28T-1:28 cylinder, double 14R-24 engines placed back-to-back with co-axial contra-rotating propeller shafts, direct fuel injection, 2-speed supercharger, displacement, delivering for take-off using 100/130 octane fuel. ==Applications==