HD.28
Role	Military trainer Type of aircraft
National origin	France
Manufacturer	Hanriot
First flight	1928

The Hanriot HD.28 was a military trainer aircraft developed in France in the 1920s as a modernised version of the HD.14 for export markets. The principal difference between the types was that while the HD.14 had an entirely wooden structure, the HD.28's structure was almost entirely of metal. The landing gear was also of more conventional design, with only one wheel on each main unit, plus small anti-noseover skids. The two tandem cockpits of the HD.14 were replaced by a single, long cockpit in which both pilot and instructor sat.

The aircraft designated as Hanriot H-28 was in fact a Polish-built (at Samolot and CWL), slightly modified version of wooden-construction Hanriot HD.14.^[1]

Specifications

General characteristics

• Crew: Two, pilot and instructor
• Length: 7.25 m (23 ft 9 in)
• Wingspan: 10.87 m (35 ft 8 in)
• Height: 3.08 m (10 ft 1 in)
• Empty weight: 575 kg (1,270 lb)
• Gross weight: 830 kg (1,830 lb)
• Powerplant: 1 × Le Rhône 9C , 60 kW (80 hp)

Performance

• Maximum speed: 110 km/h (70 mph, 61 kn)
• Range: 260 km (160 mi, 140 nmi)
• Service ceiling: 4,000 m (13,100 ft)