Series XIII. Microcom, Inc., 1969-1974

Series

Scope and Contents: Microcom, Inc.

Established in 1968 as an affiliate of LearAvia Corporation (LAC), Microcom, Inc. (MI) which designed and produced an advanced line of avionics, including the AFC-70 autopilot, is represented primarily by technical documentation. The bulk of the material falls within 1969-1972. A few materials are dated later, due to the transition from an affiliate company to being absorbed by LAC as of December 1972. Because the company records present are nearly all technical in nature and focus almost exclusively on the AFC-70 autopilot, the series has not been further subdivided. Files have been arranged chronologically.

Materials include technical and engineering reports; service manuals; environmental and explosion tests and test plans; and installation procedures on various aircraft, including an Aero Commander 690, Learjet Model 24, Beech 95-A55, and assorted Cessna models. Many of the reports have duplicate copies, as well as revised copies and “dead file” copies. Some files sometimes include related correspondence, photographs, and “supplemental type certificates.” There is also a 1973-1974 logbook for research and development of the AFC-70.

While the bulk of the material is directly related to the AFC-70, there is a small amount of materials, including assorted reports, test plans, and procedures, that are related to other parts and products, including a yaw stability augmentation system, a nose steering system, a cabin temperature controller, and a battery temperature indicator, among others. There also also diagrams related to plans for a hangar mezzanine workspace remodel.

Dates

Creation: 1969-1974

Creator

From the Collection: Lear, William P. (William Powell), 1902-1978 (Person)
From the Collection: Lear, Moya Olsen, 1915-2001 (Person)

Language of the Materials

From the Collection:

Most materials are in English, but some materials are in other languages, including Bengali, French, German, Italian, Japanese, Romanian, and Spanish. When non-English language materials are present, it is noted on the individual folder.

Conditions Governing Access

A computer hard drive is not accessible, pending digital preservation procedures. The rest of the collection is open for research and is accessible in the Dahlberg Research Center by appointment. For more information contact us.

Extent

From the Collection: 285 Cubic Feet (190 legal size 5-inch document boxes (15 ½” x 10 ¼” x 5”), 2 legal size 2-inch document boxes (15 ½” x 10 ¼” x 2 ½”), 6 record cartons, 2 card boxes (12” x 4 ½” x 5 ½”), 9 oversize boxes (19” x 4” x 15”), 7 oversize boxes (20 ½” x 3" x 16 ½”), 7 oversize boxes (24 ½”x 3” x 20 ½”), 2 oversize boxes (40” x 2 ½” x 32”), 9 oversize rolled storage boxes (40” x 9” x 9”), 21 oversize folders (30” x 40”), 50 oversize folders (35 ¾” x 47 ¾”), 1 oversize folder (24” x 75”), 38 bagged rolled storage (60” x 5” x 5”), 1 Quadruplex tape (15 ¼” x 15 ½” x 3"))