A magazine that is published to furnish aviation professionals (in agriculture, aerial fire suppression, and forestry), chemical dealers, and consultants an educational and entertaining magazine to provide understanding, enjoyment, and information; and to help provide unity among these professionals worldwide.

The American Helicopter Society's online searchable database of technical publications.

Now shipping: Aerodynamics of the Helicopter - the classic text by Alfred Gessow and Garry C. Myers.