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Old September 30th 19, 05:19 PM posted to rec.aviation.soaring
Martin Gregorie[_6_]
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Default Standard Cirrus 1973 (Grob) no water ballast

On Mon, 30 Sep 2019 08:43:16 -0700, Tony wrote:

The earli Cirri did not come from the factory with ballast. Many were
retrofitted in the field with bags.


Yep. Initial Standard class rules said no water ballast and no
retractable landing gear. I don't know whether the rule changes to allow
water ballast and retractable gear were simultaneous or not.


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