Standard Cirrus

Although the Standard Cirrus was a follow-on to the original Open Class Cirrus design, it is completely different aircraft, with a 15 m. wing with airbrakes on the top surface only, an all-moving T-tail and a steel tube skeleton in the wing-fuselage center section. A Cirrus won the U.S. Standard Class Nationals in 1969. Despite a claimed L/D ratio of 38, measured performance by both Paul Bikle and Ricard H. Johnson demonstrated less than 36. In 1975 an improved version called the Cirrus 75 was introduced with redesigned wing fairings, larger airbrakes and other improvements. 176 were manufactured under license by Burkhart Grob in Mindelheim, Germany.

After production in Germany ceased in 1977, the Standard Cirrus was manufactured in Serbia by Vazduhoplovno Tehnicki Centar (later Jastreb Fabrika Aviona Jedrilica), first the Cirrus 75 and 75B version, and subsequently a modified Cirrus 81 with roomier cockpit and variable incidence tailplane. Between 1977 and 1978, the French company Lanaverre Industrie built 35 ships designated CS 11/75 L St. and CS 11/78 L St. These ships overlap the German serial numbers with serial numbers beginning at one. ATC

Specifications shown are for the Standard
Cirrus.

Additional information can be found on the Standard Cirrus Web Page at http://www.standardcirrus.org/

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