Hi all,
Three more picture from the year 1951 :
McDonnell XF-88 Voodoo (a kit of which in 1/48 scale was issue by Linberg) :

Old magazine cover photos (2)
Lockheed XF-90 (a kit was issued by Aurora in 1957 in 1/48 scale)

Old magazine cover photos (2)
Republic XF-91 Thunderceptor (a kit was issued in 1956 by Lindberg in 1/48 scale).
The second prototype had been fitted with a butterfly Vee-tupe empennage :

Old magazine cover photos (2)
Cheers,
Jicehem