n ringPoppet valvePushrodRocker armSleeve valveTappetElectricalcomponentsAlternatorCapacitor discharge ignitionDual ignitionElectronic fuel injectionGeneratorIgnition systemMagnetoSpark plugStarterTerminologyAir-cooledAircraft engine startingBoreCompression ratioDead centreEngine displacementFour-stroke engineHorsepowerIgnition timingManifold pressureMean effective pressureNaturally aspiratedMonosoupapeOverhead camshaftOverhead valve engineRotary engineShock coolingStrokeTime between overhaulsTwo-stroke engineValve timingVolumetric efficiencyPropellersComponentsPropeller governorPropeller speed reduction unitSpinnerTerminologyAutofeatherBlade pitchConstant-speedContra-rotatingCounter-rotatingScimitarSingle-bladeVariable-pitchEngine instrumentsAnnunciator panelEFISEICASFlight data recorderGlass cockpitHobbs meterTachometerEngine controlsCarburetor heatThrottleFuel and inductionsystemAvgasCarburetorFuel injectionGascolato