Thread: Standard Cirrus 1973 (Grob) no water ballast
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Old October 1st 19, 01:47 AM posted to rec.aviation.soaring
Nick Gilbert[_2_]
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Default Standard Cirrus 1973 (Grob) no water ballast
Schempp-Hirth TN 278-3 indicates that from serial numbers 1-134 water ballast was optional, and standard equipment from 135 onwards.

Nick.