The "Yak-12" at the film's beginning is a black-painted Lockheed T-33 Shooting Star. The "mother ship" for the Soviet parasite fighter is actually a Boeing B-50, a development of the B-29. ; The black fighter that appears near the finale, taxiing on the parking ramp and behind the "mother ship" is a Northrop F-89 Scorpion. An F-86 Sabre is used to depict a Russian chase aircraft, painted in dark colors, high visibility orange, and gray juxtaposed to obscure its actual silhouette. The unpainted fighter that Olga is to test fly is a Northrop F-89 Scorpion.