Noteworthy were several original features designed and fabricated by the engines with technical support from several persons and companies. The airframe was fabricated from palosapis wood and the skin from tanguile veneer plywood. The engine mount was fabricated from chrome molybdenum steel. Most significant of all was the fabrication and assembly of a one-piece plastic canopy. Fuel tanks were constructed with 5052-H34 aluminum alloys. Instrument panel, electrical, hydraulic and pitot-static systems were laid out with the help of reference books and articles. Variants Defiant 300The first prototype, powered by a single Lycoming IO-540-K1B5 piston engine, which had its maiden flight on February 22, 1988. Defiant 500The second prototype, with an all-metal airframe and a 500 hp engine, was not finished due to lack of financial support from the government. Operators Philippine Air Force Aircraft on display The Defiant 300 is currently on display in a hangar at the Philippine State College of Aeronautics. Specifications (Defiant 300) See also References Aircraft manufactured in the Philippines