Last Saturday I worked W3IUU in Maryland while under canopy at about 8000 ft over the Byron CA airport. Worked a few closer stations as well during my descent.
http://www.arrl.org/files/file/QST/This%20Month%20in%20QST/May2016/GLIFFORT.pdfRig was Yaesu FT 817 on 14.250 USB running under 5 watts on AA batts. Antenna was a PAR end fed dipole deployed as a trailing wire.
Sure would be fun to work some AM stations on a future jump. Has to be 40M, 20M or 10M, due to antenna size and stowing issues. The FT 817 will do AME I believe. I once jumped a BC 611, but its tiny output power didn't cut it. I did hear AM stations calling me however.
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AF6IM