TheSZD-28 (Latające laboratorium - Flying Laboratory) was a researchglider designed inPoland from 1960.

The SZD-28 (Latające laboratorium - Flying Laboratory) was a twin hulled derivative of theSZD-9 Bocian 1D with two Bocianfuselages, outer wings from a Bocian and a new centre-section for testingaerofoils and other wing parts. The pilot occupied the front seat of the port fuselage with an optional observer in the starboard fuselage front seat. Equipment for test measurements was also to be carried in the rear cockpits of both hulls. Due to pressure of work at the department, work on the SZD-28 was discontinued, but the SZD-28 designation was reused as theSZD-28 Kondor, but little is known of this project.

Data fromhttp://www.piotrp.de/SZYBOWCE/pszd28.htm

General characteristics

• Crew: 1 or 2
• Length: 8.2 m (27 ft 0 in)
• Wingspan: 21.14 m (69 ft 5 in)
• Wing area: 25.1 m² (270.2 sq ft)
• Aspect ratio: 17.8
• Airfoil: NACA43018 - NACA43012A

Performance

• Maximum speed: 200 km/h (124.3 mph, 108.0 kn)
• Stall speed: 59 km/h (36.7 mph, 31.9 kn)
• Rate of sink: 0.90 m/s (177 ft/min) at 68 km/h (42 mph; 37 kn)

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