XP-59 (cont'd)
    Under a Shroud of Secrecy
    A Jet Takes Wing
    Lt. General "Bill" Craigie
XS-1, Cox-Klemin
XV-1, McDonnell 
XV-3, Bell
XV-5A, Ryan
XV-15, Bell
 
Yalu River
Yeager, Chuck
    testing X-1
    talks about flying X-1
YF-16 Control Configured
    Vehicle, General
    Dynamics
YF-17, Northrop 
YF-22A Lightning II,
    Lockheed
    Senior Sky