PIK-15 Hinu
Role	Glider tug Type of aircraft
National origin	Finland
Manufacturer	Polyteknikkojen Ilmailukerho
Designer	Kai Mellen, Ilkka Lounamaa and Jussi Rinta
First flight	29 August 1964
Number built	7

The PIK-15 Hinu is a light aircraft developed in Finland in the 1960s for use as a glider tug.^[1] It was a low-wing cantilever monoplane of conventional design with an enclosed cockpit and fixed, tailwheel undercarriage.^[2] The cockpit had two seats, side-by-side, and the PIK-15 was intended to have a secondary role as a trainer.^[1] Construction was of wood throughout.^[3]

Design work began in 1960, with the first prototype built two years later and flying on 29 August 1964.^[2] Six examples were listed on the Finnish Civil Aviation Authority registry in 2011.^[4]

Specifications (prototype, with low-pitch propeller)

Data from Jane's All the World's Aircraft 1965–66^[5]

General characteristics

• Crew: 1
• Capacity: 1 passenger or instructor
• Length: 6.60 m (21 ft 8 in)
• Wingspan: 10.00 m (32 ft 10 in)
• Height: 2.03 m (6 ft 8 in)
• Wing area: 14.0 m² (151 sq ft)
• Aspect ratio: 7.15:1
• Airfoil: NACA 2415 at root, NACA 4409R at tip
• Empty weight: 493 kg (1,087 lb)
• Max takeoff weight: 765 kg (1,687 lb)
• Fuel capacity: 110 L (24 imp gal; 29 US gal)
• Powerplant: 1 × Lycoming O-320-A2B air-cooled flat-four, 110 kW (150 hp)

Performance

• Maximum speed: 190 km/h (120 mph, 100 kn)
• Cruise speed: 170 km/h (110 mph, 92 kn)
• Stall speed: 81 km/h (50 mph, 44 kn) (flaps down)
• Never exceed speed: 300 km/h (190 mph, 160 kn)
• Rate of climb: 7.0 m/s (1,380 ft/min)
• Take off run to 15 m (50 ft): 150 m (492 ft)
• Landing run from 15 m (50 ft): 150 m (492 ft)