Thread: Retracting & rotating main U/C
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Old January 28th 20, 05:20 AM posted to rec.aviation.soaring
AS
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Default Retracting & rotating main U/C
On Tuesday, January 28, 2020 at 12:10:26 AM UTC-5, Tango Whisky wrote:
Patents run for 20 years, so anything connected to Grob gliders will have expired long ago.

...... unless they get renewed.

Uli
'AS'