[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
Complete Examination Questions and Answers: Aerial Navigation for Student, Private, and Commercial Pilots (open access)

Complete Examination Questions and Answers: Aerial Navigation for Student, Private, and Commercial Pilots

Booklet titled "Complete Examination Questions and Answers: Aerial Navigation for Student, Private, and Commercial Pilots" meant to quiz pilots on the science of Aerial Navigation.
Date: April 1941
Creator: Wheeler, Carlton L.
Object Type: Book
System: The Portal to Texas History
[Syllabus of Outlines and Materials for Introduction to Musical Literature] (open access)

[Syllabus of Outlines and Materials for Introduction to Musical Literature]

Syllabus of outlines and materials for Introduction to Musical Literature from 1941. Syllabus includes General Instructions for use of Analytical and Descriptive Charts of Symphonies, overtures and other forms of music.
Date: 1941
Creator: Moore, Earl V. & McGeoch, Glenn
Object Type: Book
System: The Portal to Texas History