McDonnell Douglas Helicopter Co. MD 520N model was displayed at Forum 47 Exhibit Hall. American Helicopter Society's (now Vertical Flight Society) 47th Annual Forum and Technology Display at Phoenix, Arizona, May 6-8, 1991.
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MDHC displays MD 520N design at Forum 47 Exhibits

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McDonnell Douglas Helicopter Co. MD 520N model was displayed at Forum 47 Exhibit Hall.

American Helicopter Society's (now Vertical Flight Society) 47th Annual Forum and Technology Display at Phoenix, Arizona, May 6-8, 1991.

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Added to Forum 47, 1991 and categorized in — 2 years ago

 

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