Airship aerodynamics. (open access)

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.)
Date: February 11, 1941
Creator: United States. War Department.
System: The UNT Digital Library
Aircraft induction, fuel and oil systems. (open access)

Aircraft induction, fuel and oil systems.

Describes aircraft engine systems, fuels, and lubricants.
Date: February 22, 1944
Creator: United States. War Department.
System: The UNT Digital Library