Aviation Development, Inc.
Aviation Development, Inc. (ADI) was a company started by William P. Lear. It was solely for the design, engineering, supervision of manufacturing of the SAAC-23, eventually known as the Learjet 23. According to correspondence from June Shields, secretary to Lear, it was an affiliate company but not a subsidiary of either Lear, Inc. or Swiss American Aviation Corporation.
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Scope and Contents: Swiss American Aviation Corporation Series IV: Swiss American Aviation Corporation (SAAC) is a fairly small series that documents WPL’s early efforts at an executive transport and private corporate aircraft, originally named the SAAC-23 although it would eventually become the Learjet Model 23. Some early concept and logistical materials present in the series pre-date the official 1960 start of the company, but most fall within SAAC’s 1960-1962 time period. Note that some materials related to SAAC...