Aircraft overview

The Alexander Schleicher K 8 is a single-seat training and club sailplane designed by Rudolf Kaiser and built by Alexander Schleicher in Germany. It first flew in 1957 and production ran into the 1970s, with more than 1,100 examples completed. The K 8 sits in the classic wood, fabric and steel-tube generation of postwar gliders, following the Ka 6 family but intended to be simpler, tougher and easier for club operation. It matters because it remains a widely recognized step-up sailplane for pilots moving from two-seat training to solo soaring, with benign handling and straightforward maintenance compared with many higher-performance composite types.

Performance & specifications

The K 8 is an unpowered sailplane, so it has no engine, no fuel burn and no fixed range in the powered-aircraft sense. Cross-country distance depends on weather, pilot technique and launch method. Typical published figures for the K 8B include a 15 m wingspan, a best glide ratio of about 27:1, and a minimum sink rate of roughly 2.1 ft/min? No, use verified unit.

• Powerplant: none, aerotow or winch launch
• Best glide: about 27:1 at approximately 40 knots
• Minimum sink: about 130 ft/min in still air
• Maximum permitted speed: about 108 knots, subject to the aircraft flight manual
• Maximum takeoff weight: commonly listed around 680 lb for the K 8B
• Useful load: typically about 260 lb, varying by individual empty weight and equipment
• Ceiling: not defined like a powered aircraft, practical altitude depends on soaring conditions and local regulations

Cabin & avionics

The K 8 has one seat under a simple canopy, with a compact cockpit and conventional glider controls. Original instrumentation is basic: airspeed indicator, altimeter, variometer, compass and release controls. Used examples often add a radio, audio variometer, FLARM or comparable traffic awareness equipment, a GPS flight recorder, and sometimes a portable soaring computer. Integrated suites such as Garmin Perspective or Garmin G1000 are not typical for this aircraft category or era.

Buying & value

For buyers, condition and documentation matter more than model-year differences. Review the logbooks, weight and balance data, repair history, airworthiness status, and compliance with applicable inspections or directives. Pre-purchase attention should focus on wood structure, fabric covering, glue joints, steel fittings, control cables, canopy condition, tow release, wheel and brake, and signs of hangar rash or moisture exposure. The K 8B is the most commonly encountered variant, while the K 8C is less common and is noted for cockpit and detail refinements. In the used market, the Alexander Schleicher K 8 is generally positioned as an affordable, maintainable club and recreational sailplane rather than a modern high-performance cross-country machine.