LOS ANGELES Raytheon has an alternate model in its bid for the AIM-9X short-range missile competition—a version equipped with a more powerful rocket motor from Israel’s Rafael Python 4 missile. The Python 4 motor is 6.3-in. in diameter instead of the 5-in.-dia.

The U.S. stands as the world’s lone superpower, but due to their economic strength or vast potential, the other great powers, Russia, China, Japan and Europe, also remain in a class by themselves. Great power politics did not end with the Cold War.

NEW YORK Pratt & Whitney F119 engines sharing a common core will power the four JSF concept demonstrator aircraft, but the powerplants’ fans and main engine exhaust nozzles will differ to support specific aircraft configurations. Pratt will supply engines and support to Boeing and Lockheed Martin for their JSF concept demonstrators under a $900million contract expected to be signed in a few weeks.