Set of (6) Lockheed - Delta Air Lines Basic Hydraulics Manuals / Lesson Books

Description

Nice set of 6 Lesson and testing booklets produced for Delta Airlines in cooperation with Lockheed Aircraft. Undated, but estimating these to be from the 1960's/1970's. In good condition, wear and stains on covers, writing on several pages in Lesson 1, all other books Very clean inside. Missing Lesson 5.
This was pulled from the estate of a Delta Airlines mechanic & engineer for 4 decades. I have several other rare delta training manuals available for purchase on my shop as well. Please view the photos for the full description and please feel free to reach out with any questions or concerns.
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