F-105 Thunderchief / USAFRepublic F 105D Thunderchief airplane model. The Republic F 105 Thunderchief was the first supersonic tactical fighter bomber developed from scratch. Apart from being the biggest single seat, single engine combat aircraft in history, the F 105 was notable for its large internal bomb bay and unique swept forward engine inlets in the wing roots. The wing was highly swept and incorporated low speed ailerons and high speed spoilers for lateral control,