Accession Number : ADD007377

Title :   Precision-Fin Indexing Device for Wind Tunnel Models.

Descriptive Note : Patent,


Personal Author(s) : Wallace,Richard S

Report Date : 17 Jun 1980

Pagination or Media Count : 4

Abstract : An indexing device includes an adapter conforming to the contours of the test model body with a cavity for housing a ring gear which has internal teeth segments in two diametrically opposed quadrants and is rigidly attached to the adapter. A movable fin with an aerodynamic surface includes a cylindrical hub welded to the base portion thereof. The hub is provided with a central shaft extension which engages a close fitting opening in the adapter and with two curved slots to accept clamping fasteners that thread into tapped holes in the adapter. A spur gear, modified to mesh with the modified ring gear on the adapter, is bolted on the under surface of the hub concentric with the shaft extension. (Author)

Descriptors :   *Patents, *Wind tunnel models, *Fins, Adapters, Positioning devices(Machinery), Attachment, Gears, Guided missile models, Wind tunnel tests, Indexes(Ratios), Precision, Rings

Subject Categories : Test Facilities, Equipment and Methods
      Guided Missiles

Distribution Statement : APPROVED FOR PUBLIC RELEASE