High Quality Content by WIKIPEDIA articles! Messerschmitt P.1101 was the name attached to a single-seat, single-jet fighter developed in response to the July 1944 Emergency Fighter Program, which sought the second generation of jet fighters for the Third Reich. A characteristic feature of the P.1101 prototype was that the sweep of the wings could be changed before flight, a feature perfected by the later Variable-sweep aircraft such as the MiG-23, Bell X-5, the General Dynamics F-111, and the F-14 Tomcat.