مؤلف: R. K. “Dick” Williams

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1 كتب إلكترونية بواسطة R. K. “Dick” Williams

Amy L. Hoover & R.K. &Dick& Williams: Mountain, Canyon, and Backcountry Flying
For more than a century, pilots have been intrigued by the challenges of flight in the highest mountains and the deepest canyons on every continent. Mountain, canyon, and backcountry flying allows pi …
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