EntityQ1425359· pop 8· linked from 89 articlesMikronSign in to save1930s piston aircraft engine family by WalterConnectionsLET L-13 BlaníkEntityCzechoslovakiaEntityInternational Standard Book NumberEntityaircraftEntityWayback MachineEntityturbojetEntityturbopropEntityaircraft engineEntityradial engineEntityreciprocating engineEntitycompression ratioEntityengine displacementEntitystraight engineEntityvalvetrainEntityaerospace manufacturerEntitystrokeEntitypower-to-weight ratioEntityBristol JupiterEntityboreEntityavgasEntityCategories1930s aircraft piston enginesAircraft air-cooled inline piston enginesInverted aircraft piston enginesWalter aircraft engines