The Air Force's year-old F-22 cost reduction effort has paid immediate dividends, allowing the service to purchase 23 Raptors in fiscal year 2003, as opposed to the 21 proposed for FY-03 just last summer, senior officials say. "If we can be more economical in the way we do things, if Lockheed Martin can be cost-effective, we can buy more (aircraft, and) we've actually been pretty effective," Air Force acquisition executive Marvin Sambur told InsideDefense.com yesterday. "We think Lockheed Martin will...