An F-35B dropping a GBU-12 during a developmental test flight. | U.S. Air Force photo
The AIM 9X is an Air Force and Navy heat-seeking infrared missile.
In fact, the F-35 Joint Strike Fighter fired an AIM-9X Sidewinder infrared-guided air-to-air missile for the first time recently over a Pacific Sea Test Range, Pentagon officials said.
The F-35 took off from Edwards Air Force Base, Calif., and launched the missile at 6,000 feet, an Air Force statement said.
Designed as part of the developmental trajectory for the emerging F-35, the test-firing facilities further development of an ability to fire the weapon "off-boresight," described as an ability to target and destroy air to air targets that are not in front of the aircraft with a direct or immediate line of sight, Pentagon officials explained.
The AIM-9X, he described, incorporates an agile thrust vector controlled airframe and the missile's high off-boresight capability can be used with an advanced helmet (or a helmet-mounted sight) for a wider attack envelope.
F-35 25mm Gun
Last Fall, the Pentagon's F-35 Joint Strike Fighter recently completed the first aerial test of its 25mm Gatling gun embedded into the left wing of the aircraft, officials said.
The test took place Oct. 30, 2015, in California, Pentagon officials described.
"This milestone was the first in a series of test flights to functionally evaluate the in-flight operation of the F-35A's internal 25mm gun throughout its employment envelope," a Pentagon statement said several months ago.
The Gatling gun will bring a substantial technology to the multi-role fighter platform, as it will better enable the aircraft to perform air-to-air attacks and close-air support missions to troops on the ground.
Called the Gun Airborne Unit, or GAU-22/A, the weapon is engineered into the aircraft in such a manner as to maintain the platform's stealth configuration.
The four-barrel 25mm gun is designed for rapid fire in order to quickly blanket an enemy with gunfire and destroy targets quickly. The weapon is able to fire 3,300 rounds per minute, according to a statement from General Dynamics.
"Three bursts of one 30 rounds and two 60 rounds each were fired from the aircraft's four-barrel, 25-millimeter Gatling gun. In integrating the weapon into the stealthy F 35Aairframe, the gun must be kept hidden behind closed doors to reduce its radar cross section until the trigger is pulled," a statement from the Pentagon's Joint Strike Fighter said.
The first phase of test execution consisted of 13 ground gunfire events over the course of three months to verify the integration of the gun into the F-35A, the JSF office said.
"Once verified, the team was cleared to begin this second phase of testing, with the goal of evaluating the gun's performance and integration with the airframe during airborne gunfire in various flight conditions and aircraft configurations," the statement added.
The new gun will also be integrated with the F-35's software so as to enable the pilot to see and destroy targets using a helmet-mounted display.
The gun is slated to be operational by 2017.