PADC Defiant 300

Defiant 300
Role	Trainer/Light attack
National origin	Philippines
Manufacturer	Philippine Aerospace Development Corporation
Designer	Panfillo Villaruel
First flight	February 1988
Status	Cancelled
Primary user	Philippine Air Force
Number built	1 complete and 1 incomplete airframe
Unit cost	PHP40 million (1987)

The PADC Defiant 300 is a prototype aircraft developed by the Philippines Aerospace Development Company (PADC) in cooperation with the Philippine Air Force (PAF) 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 Beechcraft T-34 Mentor 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 Embraer EMB 312 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)
Cruise 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 (24,670 ft)
Rate of climb: 7.8 m/s (1,540 ft/min)

References

↑ Lambert, Mark, ed. (1990). Jane's All The World's Aircraft 1990–91. Coulsdon, UK: Jane's Defence Data. p. 191. ISBN 0-7106-0908-6.

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