The Pentagon says more testing is required to demonstrate that the 25mm automatic cannon mounted internally on the F-35A ...

While adequate as an air combat / ground attack weapon ... Gatling in the 1880s. Initial tests proved promising as a vintage Gatling gun, now powered by an electric motor in place of the usual ...

Earlier this year, for instance, the US Army started experimenting with rifle-equipped robot dogs at a testing facility in the Middle East. The contractor claims the Bullfrog is incredibly cheap ...