Inventor of Blended Winglets Flies West

AINalerts » June 5, 2014
June 5, 2014, 2:33 PM

Dr. Lewis “Bernie” Gratzer, the retired vice president of technology at Aviation Partners, passed away on Friday night. Gratzer, already a well respected aerodynamicist, joined Aviation Partners when the company was formed in 1991 to work on a blended winglet for the Gulfstream II. In 1994 he received patent #5,348,253 for his blended winglet design, the lynchpin technology of Aviation Partners’ winglet products. According to Aviation Partners, his winglet design is now flying on more than 6,000 airplanes “and counting.”

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