Gulfstream senior vice president of programs, engineering and test Preston Henne will retire, effective March 31. Henne, who turned 65 last year, joined Gulfstream in 1994 and has since led the teams responsible for the design, development, test and certification of the Gulfstream V, G550 and flagship G650, among others. Dan Nale, Gulfstream’s vice president of advanced aircraft programs, will take over Henne’s position on April 1. Nale is a 10-year Gulfstream veteran who has overseen development of various next-generation aircraft at the company.