Brditschka HB-3

The motor glider HB- 23 is a two-seat aircraft ( monoplane ) with a fixed tricycle landing gear. It was designed by the Austrian manufacturer HB- flying technique, the specially founded the HB- Aircraft AG to their mass production.

Description

The HB -23 is the latest version of the motor glider family of Heino Brditschka. Precursors were developed in the early 1970s pattern BH -3 and HB- 21st These were in turn discharges the engine Crow IV of the German developer Fritz Raab. All machines with the interpretation engine behind the cockpit and a pusher propeller is common. This, together with generous glazed cockpit with two seats side by side for a good all-round visibility. In the version Scanliner is even the fuselage nose glazed complete ( compared to the normal version Hobby liner). The HB -23 has a three-part spoiler with brake flaps which, as well as tail boom and T-tail is made of wood. The hull is a steel tube construction with GRP panel.

The aircraft is very often used because of its ease of use and forgiving flight characteristics as a club and trainer aircraft, but also as a tow plane for gliders up to 450 kg weight. These is the very good all-round visibility from the cockpit.

The engine power of the HB -23 is 98 hp and allows the machine with its pusher propeller rate of climb of more than 3 m / s The maximum take-off weight is 760 kg and the load factor 5.3 g/-3, 1g.

The HB- 23 is usually operated under visual flight rules ( VFR), for IFR operation, the corresponding instruments shall be installed and approved by the aviation authority be granted. A total of 1985 and 1990, 52 were built between.

Specifications

• Length: 8.00 m
• Wingspan: 16,40 m
• Aspect Ratio: 14.04
• Height: 2.45 m
• Wing area: 19,07 m²
• Empty weight: 560 kg
• Max. Load: 190 kg
• Max. Take-off weight: 760 kg
• Engine: VW -HB 2400G with 72 kW/98 hp at an engine speed of 4000 min-1
• Cruising speed: 89 kts (165 km / h)
• Maximum speed: about 108 kt (200 km / h)
• Stall speed: 43 knots (80 km / h)
• Fuel tank: 2 × 38 optional 2 x 50 liters in the wings
• Glide ratio: 20 at 100 km / h
• Lowest Sink: 1.32 m / s at 95 km / h
• Profile ( inside / outside): 60-126 Wortmann FX61-184/FX