Renault 4P

Charles Lindbergh's Atlantic Ocean crossing in 1927 inspired Renault to enter the light aero-engine market to diversify the range of engines they offered. The resulting Renault 4Ps, with bore and stroke, delivered and proved popular, later versions powering several record-breaking light aircraft. Developed by Charles-Edmond Serre, by 1931 the 6.3-litre 4Pdi had evolved to give to , with the adoption of bore steel cylinder liners, aluminium alloy cylinder heads attached by long studs to the crankcase, Duralumin connecting rods and magnesium alloy crankcase. The 4Pei was produced in the USSR, with local equipment and features from the MV-6, as the Voronezh MV-4 (Motor Vozdushniy / Motor Voronezhskiy - air-cooled engine / Voronezh built engine {correct interpretation is unclear}). In 1946 production of the Renault 4P-01 resumed at the SNECMA factory at Arnage, until 1949, with at least 762 engines manufactured. ==Variants==

;Renault 4Ps :The initial version with bore and stroke, delivered ;Renault 4Pa : ;Renault 4Pb :upright / - Caudron Luciole ;Renault 4Pbi :Inverted development of the Pb retaining the bore ;Renault 4Pc :Further development of the Ps retaining the bore ;Renault 4Pci :inverted 4Pc ;Renault 4Pde : ;Renault 4Pdi :Inverted, introduced bore steel cylinder liners, aluminium alloy cylinder heads attached by long studs to the crankcase, Duralumin connecting rods and magnesium alloy crankcase. 110 hp / 150 kg - Hanriot 16, 120 hp / 155 kg - Caudron Phalène ;Renault 4Pei :Inverted, rated at for take-off, the 4Pei entered production before WWII ;Renault 4Pfi: ;Renault 4Pgi :Inverted lower rated version, giving for take-off, using 73-octane fuel. ;Renault 4P-03 :As the 4P-01 but with an inverted flight Zenith carburettor == Applications ==

==Specifications (Renault 4P-01)==