P.Bowers Curtiss Aircraft 1907-1947 (Putnam)

Model X-1

   The single X-1 of early 1917 was a contemporary of the L-1 triplane, using the same wings and engine installation but a different fuselage, undercarriage, and tail. The most noticeable differences were the use of a two-cockpit tandem-seating fuselage much like that of the JN-4, with vertical tail post, and a JN-4 type vertical tail. The US Army bought one, serial number 474.