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[War Department Technical Manual & Aircraft Engines] (open access)

[War Department Technical Manual & Aircraft Engines]

Technical manual TM 1-405 from the United States War Department about aircraft engines. Prepared under direction of the Chief of the Air Corps. The booklet is divided into six sections: I. Internal-combustion engine principles, II. Classification and description of engine types, III. Description and construction of engine units, IV. Repair principles, V. Engine lubrication, and VI. Engine cooling. All chapters include information and drawings for reference.
Date: December 9, 1941
Creator: United States Department of War
Object Type: Legal Document
System: The Portal to Texas History
[Letter from Lt. Thomas Kuenning to Mickey McLernon, December 21, 1941] (open access)

[Letter from Lt. Thomas Kuenning to Mickey McLernon, December 21, 1941]

Letter from Lieutenant Thomas Kuenning to Mickey McLernon wishing her happy holidays and informing her that he is moving to Langley Field.
Date: December 21, 1941
Creator: Kuenning, Thomas E.
Object Type: Letter
System: The Portal to Texas History
[Letter from Mrs. Earl Kuenning to Mickey McLernon, December 20, 1941] (open access)

[Letter from Mrs. Earl Kuenning to Mickey McLernon, December 20, 1941]

Letter from Mrs. Earl Kuenning to Mickey McLernon informing her that she will sent her some pictures of Tom, thanking her for giving him hospitality, telling her about his travels, and wishing her happy holidays.
Date: December 20, 1941
Creator: Kuenning, Mrs. Earl
Object Type: Letter
System: The Portal to Texas History