Staff Writer (Updated: 4/4/2016):
The F-111 was based on this design principle, becoming the world's first operational variable geometry swing wing aircraft - leading the way for future global counterparts in the form of the Grumman F-14 Tomcat interceptor, the Panavia Tornado multirole aircraft, the Mikoyan-Gurevich MiG-23 and MiG-27 "Flogger" strike fighters and the Sukhoi Su-17 "Fitter" bombers. Additionally, larger (and more complex) forms of the swing-wing philosophy would also arise from the developments of the Rockwell B-1 "Lancer", the Tupolev Tu-22 "Backfire" and the Tupolev Tu-160 "Blackjack" bombers.
The F-111 (belatedly assigned the designator of "Aardvark") was a large two-seat multi-role aircraft that would be used to good effect in the upcoming Vietnam War. The two crewmembers sat in a side-by-side arrangement in a fully-jettisonable cockpit capsule, with each member having equal access to all controls on the main panel. The F-111 was powered by a series of ever-increasing Pratt & Whitney brand powerplants and could field a variety of laser-guided, seeking, and drop bombs from up to 8 underwing hardpoints (four to a wing - the area under the fuselage was reserved for an internal weapons bay though the area between the engines could fit an ECM or data link pod). The aircraft utilized a single vertical tail fin mounted between the twin engines running that ran aft of the cockpit and the remaining length of the fuselage.