On this day in aviation history, February 20, 1939, the Douglas DC-5 made its first flight. Less remembered than its cousins, the DC-5 was poised to make advancing strides in the field of civil ...
SCHOFIELD, Wis. — Greenheck has doubled its line of DC-5 high volume low speed (HVLS) fans with the introduction of four new smaller sizes. The five-blade HVLS fan is now available in 4.3-, 5-, 6-, ...
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