The Learjet 55 was a low-wing cantilever monoplane with NASA developed winglets, the winglets gave rise to the nickname Longhorn. The aircraft has a T-tail and is powered by two Garrett TFE731 turbofans mounted each side of the rear fuselage. It has a retractable tricycle landing gear and an enclosed cabin for up to ten passengers and a cockpit for the two crew.
The Learjet 55, with NASA-developed winglets that gave it the nickname Longhorn, was a low-wing cantilever monoplane equipped with a T-tail. It was powered by two Garrett TFE731 turbofans mounted on either side of the rear fuselage and featured retractable tricycle landing gear for up to ten passengers and a cockpit for the two crew.