Heller 1/72 Boeing B-707 Air France Plastic Model Kit

It was in 1950 that Boeing began studies on a four-engined aircraft for civilian and military use. The prototype took off on its maiden flight on July 15, 1954, and in September, the U.S. Air Force passed a large order for supply planes, the KC 135.  On October 15, Pan American ordered six Boeing 707-121s.  After this, the Boeing 707 was developed in parallel to the C.135 military versions, and this resulted in the 200 series, which was fundamentally different.