RARE! NASA 16' Transonic Wind Tunnel Sitka Spruce Wood Fan Blade Propeller Model Sitka Spruce Fan blade from NASA Langley 16' Transonic Wind Tunnel *Very Rare* "This wind tunnel no longer exists, and very little remains as historic artifacts available...
from NASA Watch http://ift.tt/1v55ZDE
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from NASA Watch http://ift.tt/1v55ZDE
via IFTTT
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