Bert Ratliff, Bell Helicopter Company, 1963

Figure 2, from Vertiflite (AHS Newsletter) Dec 1963.

Bert Ratliff, Bell Helicopter Company, 1963

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Bert Ratliff, Bell Helicopter Company, 1963

Figure 2, from Vertiflite (AHS Newsletter) Dec 1963.

 

Added to Historical Records - Bell... and categorized in 5 months ago

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