"Footage from the early NACA era at NASA Langley Research Center. The NACA were unable to obtain contractors to complete the construction of the blades because of the unusual size and specifications that were required. These blades would fill the new tunnels the NACA were creating. The process is extremely interesting to watch as these modelmakers were taught how to make these large blades. Several men worked on a blade at one time making teamwork very important to the process."
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Part 2:
Part 3:
Here is some background music for that.. (open in another tab).
http://www.youtube.com/watch?v=GZbuA7r17uk&feature=PlayList&p=0FF7E914AABDD630&playnext_from=PL&index=0&playnext=1
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