Description

The final "F" model Sabre F-86F-40 was first built for the Japanese Air Self Defense Force. It is significant in that its outer wing changed again from the F-25. The FAO's wing was lengthened by one foot on each side and returned to using leading edge slats. The longer wing again reduced the stalling speed and allowed slower landing approaches and shorter takeoff distances. The result was an overall improvement over Sabres with the 6-3 wing. The conversion also improved the combat radius and the Sabre's high altitude maneuverability. Because of this, the United States Air Force converted all active duty Sabres to F-40 specifications beginning in March 1955 and added leading edge slats once again.