The U.S. military is ground-testing the F-35 fighter jet’s Gatling gun, another step before the $1 trillion fighter jet project can be fully operational.

Jet fires 3,300 rounds a minute
Aug 24, 2015 | 4:53 PM
The U.S. military is ground-testing the F-35 fighter jet’s Gatling gun, another step before the $1 trillion fighter jet project can be fully operational.