The U.S. and Norway have tested a solid-fuel direct-flow air-jet propulsion aircraft as part of a common project to develop hypersonic and high-speed long-range weapons, the Pentagon press service reported.

The tests were conducted on August 17-18 at the range on the Norwegian island of Annea.

The Pentagon reported that both launches were deemed successful: they demonstrated high supersonic speeds before the ramjet engine stopped working and the vehicles fell to the water.