title: Maestranza Central de Aviación HF XX-02
text: # Maestranza Central de Aviación HF XX-02
  
  The Maestranza Central de Aviación HF XX-02 was a military trainer aircraft developed in Chile in the 1950s.
  
  ## Design and development
  
  Designed by Hugo Fuentes (hence the HF in the designation), the HF XX-02 was a conventional, low-wing cantilever monoplane of mixed construction with fixed tailwheel undercarriage. The pilot and instructor sat side by side.
  
  Two prototypes were constructed at El Bosque Air Base, designated XX-02 and XX-02B. Development was abandoned due to difficulties maneuvering at lower altitudes, which in one case, led to a crash in which the instructor was killed while attempting to land after a tight turn at low altitude.
  
  The design was subsequently refined by Francisco Bravo and an improved version, the HFB XX-02 flew in 1958 powered by a Continental O-470 engine in place of the Ranger L-440 that powered the original.
  
  ## Specifications (HFB XX-02)
  
  Data from The Illustrated Encyclopedia of Aircraft p.1997
  
  General characteristics
  
  * Crew: Two, pilot and instructor
  * Length: 6.60 m (21 ft 8 in)
  * Wingspan: 10.10 m (33 ft 2 in)
  * Height: 2.15 m (7 ft 1 in)
  * Wing area: 16.0 $m^2$ (172 sq ft)
  * Empty weight: 760 kg (1,675 lb)
  * Gross weight: 1,060 kg (2,337 lb)
  * Powerplant: 1 × Continental O-470-B , 168 kW (225 hp)
  
  Performance
  
  * Maximum speed: 195 km/h (121 mph, 105 kn)
  * Range: 800 km (500 mi, 430 nmi)
  * Service ceiling: 4,570 m (15,000 ft)
  