This photograph shows the North American TF-86 'Transonic Trainer' taxiing with its two-man crew visible in the tandem cockpit, both wearing protective flight helmets typical of 1950s test and training operations. Developed from the single-seat F-86 Sabre, the TF-86 prototype was intended to give pilots hands-on experience with the handling qualities of swept-wing jets approaching the speed of sound. The aircraft carries serial number 31228 and the buzz code FU-228, standard identification markings for U.S. Air Force jet aircraft of the era. Project: 218470