Browse Items (33 total)

Technical drawings of a sound suppressor for a supersonic transport aircraft, drawn by William H. Cook, December 13, 1966.

Frequency meter constructed out of circular silver metal. Meter scale reader is in black and cream with company information in black lettering. The scale reader is on the front of the object underneath a layer of protective glass. Black painted metal…

Aircraft part mold constructed out of an unknown plastic like material. The material is designed in an oval shape that has been painted gray.

Items from Box 24, Folder 4 and Box 205, Folder 5 of the William P. and Moya Olsen Lear Papers, July 1943-1944. Contains correspondence, diagrams, memos, and patent copies related to the expandable ring clutch. 27 total items and original folder…

Items from Box 27, Folder 34 and Box 200, Folder 3 of the William P. and Moya Olsen Lear Papers, circa 1939-1944. Contains assorted ad sheets and brochures for various Lear Avia products. 18 total items.

Radio compass constructed out of a black metal case with a round face. Divided compass on front with sectioned numbers in beige. Silhouette of plane with "Learmatic." Plug at back. 7 pin connection. There is a black and silver label adhered to the…

Rectangular black metal case with front panel. Panel has tuning dial at center with three rows. Also has tuning selection knob and vol. knob. Has ADF/ANT switch. Tester button at upper right. At bottom of panel "Lear ADF-12E." Holes and flat prongs…

Radio compass constructed out of black metal with a glass circular face with yellow numbering. An airplane and "Lear Orienter" is etched in white on top of the glass covering. The back portion of the compass is black cylindrical metal. In addition,…

Radio compass constructed out of black metal with a glass circular face. A sticker of an airplane and "Lear Orienter" is placed on top of the glass covering. The compass is embedded into a square piece of brown wood with a lacquer finish. There is a…

Compass controller constructed out of a black metal rectangular prism encasing with a black metal face with gold lettering etched in. The compass and other dials are on the face of the object. On the back is a manufacturer label with the text,…