title: Air Masses title: Programed Text AM-32-B, February 1971 title: Programed Text creator: Snyder, Henry W. publisher: Fort Wolters (Tex.). United States Army Primary Helicopter School. Training Material Division. date: 1971-02 language: English description: This booklet gives an overview of air masses as they relate to aviation. According to the scope notes on the title page, it includes an "Explanation of the classification of air masses; weather associated with particular air masses; [and the] trajectory and source region of air masses that invade the United States." The text also has self-evaluation questions printed throughout, with the answers printed on the last page. subject: Meteorology in aeronautics -- United States. subject: Flight training -- United States. subject: Air masses -- Programmed instruction. subject: Fort Wolters (Tex.) subject: Military and War - Transportation - Aviation subject: Military and War - Forts subject: Business, Economics and Finance - Transportation - Aviation subject: maritime air masses subject: continental air masses subject: clouds subject: weather coverage: Into Modern Times, 1939-Present coverage: 1971-02 type: Pamphlet format: iii, 12 p. : ill., maps ; 27 cm. format: Text identifier: oclc: 276778038 identifier: https://texashistory.unt.edu/ark:/67531/metapth46578/ identifier: ark: ark:/67531/metapth46578