S
WBristol Type 148
WCierva C.30A
WDe Havilland Don
WDe Havilland DragonB
WDe Havilland Dragon Rapide
WDe Havilland Hornet MothC
WHeston Phoenix
WMiles MentorD
WMiles Monarch
WMiles Whitney StraightE
WPercival Gull
WPercival Vega GullF
WWestland Lysander
WWestland Wallace