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 Serial/Series Title: War Department technical manual
 Collection: World War Two Collection
75-mm howitzer materiel.
This is a World War II-era technical manual for the 75mm Howitzer. It contains information on use, maintenance, assembly, and other aspects of this weapon. digital.library.unt.edu/ark:/67531/metadc1050/
Aerial photography.
A training manual designed to teach aerial photography for military purposes. digital.library.unt.edu/ark:/67531/metadc9809/
Aircraft engines.
Discusses the principles, classification, description, and construction of internal combustion engines used in military aircraft. Includes instructions for storage of engines. digital.library.unt.edu/ark:/67531/metadc9807/
Aircraft hardware and materials.
Describes the types of "materials and hardware used in aircraft construction and repair." digital.library.unt.edu/ark:/67531/metadc9806/
Aircraft induction, fuel and oil systems.
Describes aircraft engine systems, fuels, and lubricants. digital.library.unt.edu/ark:/67531/metadc28318/
Airship aerodynamics.
"This manual is designed as a text for the instruction of airship student pilots .... to give the knowledge of aerodynamics essential to the operation of [lighter than air aircraft]."(Page 2.) digital.library.unt.edu/ark:/67531/metadc28317/
Grinding machines
This report provides the definition of grinding and discusses different processes, types, and operations of grinding. digital.library.unt.edu/ark:/67531/metadc96656/
Heat treating and inspection of metals
This report discusses these topics: I. Principles of heat treating -- II. Heat-treating equipment -- III. General heat treatment of steel -- IV. Specific heat treatments for aircraft steels -- V. General heat treatment of aluminum alloys -- VII. Hardness testing -- VIII. Magnaflux inspection. digital.library.unt.edu/ark:/67531/metadc96657/
Lathes
A guide to the operation and maintenance of lathes for general shop work. digital.library.unt.edu/ark:/67531/metadc96655/
Radiotelephone procedure
"The purpose of this manual is to acquaint radio operators and pilots of the Army Air Forces with radiotelephone procedure" digital.library.unt.edu/ark:/67531/metadc96658/
Theory of ballooning.
A general guide to piloting a free balloon. digital.library.unt.edu/ark:/67531/metadc9808/