First flight of the prototype (YCH-53A) of the S-65/H-53 Type series
Wednesday, October 14, 1964
This is a Notable Operational milestone.
Description:
Also known by the company designation S-65, this was the prototype for the CH-53 series of helicopters (2-engine versions).
See AHS Calendar October 2014 for more details.
A history of the design and development of the Type is given in the Wikipedia entry.
