WBristol Centaurus
WBristol Hercules
WBristol Perseus
WBristol Taurus
WDaimler Double-Six sleeve-valve V12
WJunk head
WKnight engine
WNapier Sabre
WPratt & Whitney X-1800
WRolls-Royce Crecy
WRolls-Royce Eagle (1944)
WRolls-Royce Pennine
WSleeve valve