Bigger Fin - Vertol's new vertical stabilizers are one-third larger than those used on present production models of its H-21 helicopter. The dotted line shows the difference in shape and size between the two. The enlarged vertical fins provide greater directional stability. They are being placed Vertol 44 helicopters, the company's commercial version of the H-21. From Vertiflite (AHS Newsletter) May 1957.
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Vertol's new vertical stabilizers

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Bigger Fin - Vertol's new vertical stabilizers are one-third larger than those used on present production models of its H-21 helicopter. The dotted line shows the difference in shape and size between the two. The enlarged vertical fins provide greater directional stability. They are being placed Vertol 44 helicopters, the company's commercial version of the H-21. From Vertiflite (AHS Newsletter) May 1957.

 

Added to Boeing/Vertol (Vertiflite... and categorized in — 6 years ago

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