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Maestranza Central De Aviacion H.F.XX-02
Designed by Hugo Fuentes (hence the HF in the designation), the HF XX-02 trainer 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, and the first flew in 1954.
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. Only the two were ever built.
HFB XX-02
Engine: 1 × Continental O-470-B, 168 kW (225 hp)
Wingspan: 10.10 m (33 ft 2 in)
Length: 6.60 m (21 ft 8 in)
Height: 2.15 m (7 ft 1 in)
Wing area: 16.0 m2 (172 ft2)
Empty weight: 760 kg (1,675 lb)
Gross weight: 1,060 kg (2,337 lb)
Maximum speed: 195 km/h (121 mph)
Range: 800 km (500 miles)
Service ceiling: 4,570 m (15,000 ft)
Crew: Two, pilot and instructor
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