The T-33 two-seat trainer was a development of the F-80.
The T-33 first flew in 1948.
Basically an F-80 with a lengthened fuselage to fit a second seat in
tandem, the T-33 served with more than 20 air forces. Over 5,600
were built by Lockheed and over 800 by Kawasaki and Canadair.
Lockheed further modified the T-33 (TV-2) to
create the T2V Seastar.