In partnership with the Defense Advanced Research Projects Agency (DARPA) and the Office of Naval Research (ONR), Boeing has successfully demonstrated boost phase performance of a hypersonic strike demonstrator vehicle called HyFly.
A Boeing F-15E launched the HyFly vehicle during the test at the Naval Air Weapons Center-Weapons Division at Pt. Mugu, CA. The solid rocket booster successfully ignited and accelerated the HyFly to a speed of greater than Mach 3.
The test was the second of five HyFly flight tests that are scheduled from 2005 to 2007. During the next three test flights, the HyFly vehicles will be powered by a booster and a dual combustion ramjet (DCR) engine at speeds up to Mach 6.
A Boeing Phantom Works team is under contract to design, develop and flight-test the HyFly demonstrator powered by the DCR engine. The ONR is co-funding the program with DARPA.
The objective of the HyFly program is to mature the DCR hypersonic missile concept. Flight tests feature a missile configuration that is compatible with launch from surface ships and submarines as well as aircraft.
Further development of HyFly to operational status will result in a weapon that “could revolutionize our ability to rapidly respond to identified threats hundreds of miles away,” said John Fox, Boeing Phantom Works program manager for HyFly. | 
