Scaled Composites Triumph, Experimental aircraft prototype in Mojave, United States.

The Scaled Composites Triumph is an experimental aircraft with a three-surface design, canard wings, and tail configuration, powered by two Williams turbofan engines. The plane was developed and built in Mojave to test and demonstrate new engine technology.

The aircraft made its first flight on July 12, 1988, at Mojave Airport, marking the debut of the Williams FJ44 turbofan engines. The plane served as a demonstrator for a new generation of efficient aircraft engines.

Scaled Composites called the aircraft the Model 143 officially and "Tuna" internally, a name carried over from the project's earlier Cabin Twin designation. The nickname is the only name painted nowhere on the airframe: the fuselage instead carries the registration N143SC, tying the displayed aircraft to its Model 143 designation.

The Triumph is displayed outdoors at the Joe Davies Heritage Airpark at Palmdale Plant 42, not at Mojave, where it stood on a pedestal for several years after testing. Look for the white fuselage with a dark blue side stripe and the registration N143SC on the rear left. The aircraft rests on a single thin strut atop a tan pole, with a winglet at the left wingtip.

Engineers originally planned three different versions with piston, propeller, and turbofan engines, but only the turbofan model was actually built. This focus concentrated on testing the new Williams engine technology.