🌐EnglishEnglishDeutschEspañolFrançaisItalianoNederlandsSvenskaРусскийالعربيةفارسی中文日本語EntityQ917964· pop 16· linked from 165 articlesBristol PegasusR-9 piston aircraft engine familyConnectionsAlfa Romeo 125EntityHartEntityCategories1930s aircraft piston enginesAircraft air-cooled radial piston enginesBristol aircraft engines