Germany, Israel and Taiwan top the list of countries interested in Sikorsky’s new CH-53K, now scheduled for first flight in 2013. The heavy lifter, which is headed for service with the U.S. Marine Corps, has suffered from delays, including a slip in initial operational capability of three years, to 2018. The delays seem not to faze the Marines and the CH-53K program office at Naval Air Systems Command (Navair). The extra time “buys [foreign countries] time to make an informed decision,” says Capt. Rick Muldoon, program manager. Germany operates about 80 CH-53D model aircraft, designated the CH-53G, 40 of which...