general gregory s. martin (born april 24, 1948) was a u.s. air force general and commander, air force materiel command at wright-patterson air force base, ohio. martin was a command pilot with more than 4,600 flying hours in various aircraft, including the f-4, f-15, c-20 and c-21. upon retirement in 2005, martin took a position consulting for northrop grumman and also served on an air force panel studying stealth aircraft technology, among other pentagon and private industry roles.