Lot · Private Aircraft
1952 Bell Aircraft Helicopter Report Robert Lichten Hinged vs Semi-Rigid Rotor
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Tue · Jun 23, 2026
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skipper89
5,640 ratings · 100.00% positive
Description
From the sellerThe 1952 Bell Aircraft Helicopter Report by Robert Lichten and Frank M Anthony focuses on the comparison between hinged and semi-rigid rotor systems for helicopters. I SCANNED ALL OF THE SHEETS, SEVERAL WERE CROPPED TO HELP SHOW THE CONTENT.
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