Thread: Russia AC-4 Series
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Old March 30th 17, 01:55 AM posted to rec.aviation.soaring
Frank Whiteley
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Posts: 2,099
Default Russia AC-4 Series
On Wednesday, March 29, 2017 at 5:47:28 PM UTC-6, wrote:
Were wingleasy ever developed/approved for the russia

There's a Yahoo Group ac4 you might want to join if not already a member.