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        Policy UpdatesNewsroomReoptimizationBIOGRAPHIESAF Senior Leaders      Maj. Charles Trickey, a 461st Flight Test Squadron F-35 experimental test pilot, successfully fires the four-barrel 25 mm GAU-22/A Gatling gun while in flight Oct. 30 over China Lake Weapon Range, California.AF-2 First Aerial Gun Fire 10/30/2015
                        
                        
                        Maj. Charles Trickey, a 461st Flight Test Squadron F-35 experimental test pilot, successfully fires the four-barrel 25 mm GAU-22/A Gatling gun while in flight Oct. 30 over China Lake Weapon Range, California.
                
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F-35A successfully fires first airborne shotsPublished Nov. 4, 2015
                    
                    By Rebecca Amber
                    
                    
                    Edwards Air Force Base Public Affairs
            **EDWARDS AIR FORCE BASE, Calif. (AFNS) --**For the first time, an F-35A Lightning II successfully fired the four-barrel 25 mm GAU-22/A Gatling gun while in flight Oct. 30.Maj. Charles Trickey, a 461st Flight Test Squadron F-35 experimental test pilot, was in the cockpit of tail number AF-2, and fired one burst of 30 rounds and two 60-round bursts at 20,000 feet from the 25 mm gun that is embedded in the F-35's left wing. The GAU-22 is hidden behind closed doors to reduce its radar cross section until the trigger is pulled. At full rate, it can fire 3,000 rounds per minute. "We took off out of (Edwards Air Force Base) and went up to China Lake. We had this hazard pattern and we did three cold passes and three hot passes interspersed with each other," Trickey said. The weapons system did exactly what it was supposed to do, he said, but data still needed to be collected and reviewed. Jennifer Schleifer, a Lockheed Martin AF-2 lead flight test engineer and the test director, said the team expects to fire the gun once or twice a week until this phase of airborne gunfire testing is complete. She added that they could be done by the end of the year, weather permitting.	According to sources, the first firing was not aimed at any target, but the goal was only to make sure the gun functions properly in flight. When the pilot is ready to fire, a complex system of doors exposes the muzzle and allows for ventilation. Keeping the gun hidden behind closed doors until the trigger is pulled allows the aircraft to remain in stealth."I like having a gun integrated with the airplane personally," Trickey said. "The airplanes that this is replacing for the Air Force, the F-16 (Fighting Falcon) and A-10 (Thunderbolt II), have internal guns."Todd Ankeny, a Lockheed Martin flight test engineer and test conductor, added that it's an important capability for the F-35. The GAU-22 was primarily designed for air-to-ground attack, such as taking out lightly armored vehicles. It can also be used for air-to-air combat.As the testing continues, many test pilots in the squadron will get a chance to test the GAU-22."We're going to try to get as much exposure to this as possible. There are a lot of test pilots in the squadron and there's some value in getting more opinions and getting more pilots exposed to it," Trickey said.In upcoming sorties the pilot will expand the envelope by performing 7G turns, 3G turns, flying at Mach 1.44, and reaching 40,000 feet. They will also do a burst fire to empty all 181 rounds. Some of the tests will be done at China Lake, but most of the remaining flights will be done over the Sea Test Range at Naval Air Station Point Mugu, California. "We're going to have elevated G and supersonic flights, and some of those things you really can't do over the land range," Trickey said.The F-35A is a conventional take-off and landing aircraft and the only model with the GAU-22 system mounted internally. The Marine Corps variant B-model and Navy variant C-model will eventually have the gun in a pod mounted to the center line."They haven't shot (their guns) airborne either so you could say this was the first F-35 airborne gunfire ever on any variant and that's why we're so excited about it," Trickey said.Tail number AF-2 is a flight sciences airplane and has more hours than any other F-35 in the world. Typically, it has been used as a loads airframe and for expanding the envelope for structures. For this test, it underwent an extensive structural modification at Edwards, to a full production representative internal gun configuration. AF-2 is instrumented differently than other F-35s for data collection.Clearing the gun for airborne use is a key milestone toward the Air Force’s initial operating capability of the F-35A. The program's development and demonstration phase is scheduled to end in 2017, at which point the F-35 will have an operational gun.The F-35 Joint Strike Fighter Integrated Test Force started testing the gun last June when the first shots were fired from the ground at the Edwards Gun Harmonization Range. "We want to clear it so when the guy is supporting troops on the ground or fighting someone, they don't have to think about whether the gun's going to work or not. They just have to worry about getting the (predicted impact point marker) on the right spot," Trickey said. "There's a lot of trust that people have put into us to make sure that we got the test right, and I feel like at the end of the day, we did."F-35 Lightning II 



Edwards Air Force Base 



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