Defiant 300

The Defiant 300 is a prototype aircraft of the Philippines developed in cooperation with the PADC, Philippine Air Force and the Philippine Aerospace and Sciences Foundation (PASF). The project was made possible through Capt. Panfillo Villaruel, the man who designed the aircraft, and the one who also contributed to the creation of the first indigenous Filipino-made helicopter, the PADC Hummingbird. The first prototype was completed in 1986 and had its maiden flight in 1987, which lasted a little more than an hour. The Defiant 300's fuselage was of composite construction (wood and fiberglass) and was powered by a 300 hp Lycoming piston engine. Landing gear was taken from the Beech T-34 and provided by the PAF. The intent of the program was to provide the PAF with a trainer and light strike aircraft similar in performance to the Tucano. The Defiant 300 was to have been followed by a larger version equipped with a turboprop engine and designated the "Defiant 500". The project languished soon after the development of the prototype because of lack of government support. Currently, The sole remaining prototype now lies abandoned and displayed in a hangar at the Philippine State College of Aeronautics.

Specifications (Defiant 300)

Data from Jane's All The World's Aircraft 1990–91^[1]

General characteristics

• Crew: two
• Length: 8.51 m (27 ft 11 in)
• Wingspan: 9.52 m (31 ft 3 in)
• Height: 3.73 m (12 ft 3 in)
• Wing area: 12.55 m² (135.1 sq ft)
• Airfoil: NACA 2418 (root), NACA 2412 (tip)
• Empty weight: 1,278 kg (2,818 lb)
• Max takeoff weight: 1,583 kg (3,490 lb)
• Powerplant: 1 × Textron Lycoming IO-540-K1B5 air-cooled flat-six, 224 kW (300 hp)

Performance

• Maximum speed: 357 km/h (222 mph; 193 kn)
• Cruising speed: 309 km/h (192 mph; 167 kn) (econ cruise)
• Stall speed: 110 km/h (68 mph; 59 kn) (flaps down)
• Range: 1,896 km (1,178 mi; 1,024 nmi)
• Service ceiling: 7,520 m (24,672 ft)
• Rate of climb: 7.8 m/s (1,540 ft/min)

References