Air Training Department, The Artillery School, U.S. Army, "The New Grasshopper—L-16Archived 2018-09-21 at the Wayback Machine," (semi-official U.S. Army tutorial written to guide pilots transitioning from the Piper L-4 to the Aeronca L-16) The Field Artillery Journal, Nov-Dec 1947, United States Army
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Air Training Department, The Artillery School, U.S. Army, "The New Grasshopper—L-16Archived 2018-09-21 at the Wayback Machine," (semi-official U.S. Army tutorial written to guide pilots transitioning from the Piper L-4 to the Aeronca L-16) The Field Artillery Journal, Nov-Dec 1947, United States Army
