. . "Pressure system at"@en . . "80"^^ . . . "4601"^^ . "1944"^^ . . . "United States"@en . . . . . . . . . "1"^^ . . . . . . "Air-cooled"@en . . . . . . . . "1110204357"^^ . . . . "1"^^ . "7.4"^^ . "6"^^ . . "*Reduction gear: Planetary reduction gearing at 0.623:1"@en . . ":*Take-off: at 3,300 rpm\n:*Normal: at 3,200 rpm at sea level\n:*Cruise: at 2,840 rpm at sea level"@en . . "*Continental O-470\n*Lycoming O-480"@en . "The Franklin O-425 (company designation 6AG/6V6) was an American air-cooled aircraft engine that first ran in the mid-1940s. The engine was of six-cylinder, horizontally-opposed layout and displaced 425 cu in (7 L). The power output was between 240 hp (179 kW) and 285 hp (213 kW) depending on variant. The O-405-13 (6V6-300-D16FT) of 1955 was a vertically mounted, turbocharged and fan cooled version for helicopters."@en . "The Franklin O-425 (company designation 6AG/6V6) was an American air-cooled aircraft engine that first ran in the mid-1940s. The engine was of six-cylinder, horizontally-opposed layout and displaced 425 cu in (7 L). The power output was between 240 hp (179 kW) and 285 hp (213 kW) depending on variant. The O-405-13 (6V6-300-D16FT) of 1955 was a vertically mounted, turbocharged and fan cooled version for helicopters."@en . . . "*List of aircraft engines"@en . "38302257"^^ . . . "Franklin O-425"@en . "Aircraft engines of the World 1950."@en .