WAeromarine AS
WAeromarine PG-1
WBoeing F2B
WBoeing F3B
WBoeing Model 15
WBoeing XP-4
WBoeing XP-7
WBoeing XP-8
WBoeing P-12
WCurtiss F6C Hawk
WCurtiss F7C Seahawk
WCurtiss P-6 Hawk
WCurtiss XP-10
WCurtiss YP-20
WCurtiss XP-22 Hawk
WCurtiss PN-1
WDayton-Wright XPS-1
WEberhart XFG
WEngineering Division TP-1
WCurtiss Falcon
WBoeing Model 15
WGallaudet PW-4
WHall XFH
WLoening PA-1
WLoening PW-2
WNaval Aircraft Factory TS
WThomas-Morse XP-13 Viper
WVerville VCP
WVought VE-7
WVought FU
WVought XF2U
WWright XF3W Apache