Presentation3 - springfieldaviation.com › Newsletters › GP4BFN28.pdf · THE OFFICIAL VOICE OF...
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Presentation3 - springfieldaviation.com › Newsletters › GP4BFN28.pdf · THE OFFICIAL VOICE OF GP-4 BUILDERS ALL OVER THE WORLD VOLUME 28 Fifth issue of 1999 Dr. Phillip D. Foshee