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Akaflieg Karlsruhe AK-5 
Summary
The AK-5 is a single-seat club class sailplane designed and built in Germany by members of Akaflieg Karlsruhe.
| Akaflieg Karlsruhe AK-5 | |
|---|---|
| |
| AK-5 in Neresheim | |
| Role | Club class sailplane |
| National origin | Germany |
| Manufacturer | Akaflieg Karlsruhe |
| First flight | June 1990[1] |
| Number built | 1 |
| Developed into | Akaflieg Karlsruhe AK-5b |
Design and development edit
The forward fuselage of the glider was taken from the Glasflügel 604 and the wings were built to the design of the Streifeneder-Hansen Falcon glider, an experimental prototype designed and built by Hansjörg Streifeneder. The cockpit interior was newly designed including a self-designed and built flight director / variometer system and parallelogram control input system similar to Glasflügel practice.[2]
Specifications edit
Data from [3]
General characteristics
- Crew: 1
- Length: 6.8 m (22 ft 4 in)
- Wingspan: 15 m (49 ft 3 in)
- Wing area: 10.66 m2 (114.7 sq ft)
- Aspect ratio: 21.11
- Airfoil: HQ-21/17.5
- Empty weight: 278 kg (613 lb)
- Gross weight: 485 kg (1,069 lb)
Performance
- Never exceed speed: 270 km/h (170 mph, 150 kn)
- Maximum glide ratio: 39:1 at 105 km/h (65 mph; 57 kn)
- Rate of sink: 0.580 m/s (114.2 ft/min) at 85 km/h (53 mph; 46 kn)
- Wing loading: 45 kg/m2 (9.2 lb/sq ft)
Avionics
- self-designed flight director / variometer
References edit
- ^ AK-5 Erstflug Archived 2011-08-17 at the Wayback Machine bei akaflieg-karlsruhe.de
- ^ "AK-5" (in German). 11 June 2015. Retrieved 21 September 2016.
- ^ "Akaflieg Karlsruhe AK-5". All-Aero. Retrieved 21 September 2016.
External links edit
Wikimedia Commons has media related to Akaflieg Karlsruhe AK-5.
- Akaflieg Karlsruhe (in German)
- Akaflieg Karlsruhe homepage