F-35 test squadron works to wring out upgrade problems

Les retards dans la mise à niveau du TR-3 entrainent des dizaines de jets en attente.

EDWARDS AIR FORCE BASE, California—With deliveries of new F-35s on hold while bugs are worked out of a planned upgrade, the plane’s lead test squadron is doing its part to spot problems where the new hardware and software interact. 

As the lead developmental flight test unit for the F-35 program, the 461st Flight Test Squadron sits at the “nexus” between development and the operator, said squadron commander Lt. Col. Philip “Joker” Jackson. 

“Even if we’re going to get something that doesn’t entirely work, because we’re test, because we can fly it, we’re going to take it up, and we’re going to discover what we can and try to rip off all those Band-Aids early,” Jackson said in an interview here. 

Jackson’s squadron is testing a suite of hardware and software improvements, known as Technology Refresh 3, or TR-3, that will be the backbone for Block 4—the Pentagon’s effort to equip the F-35 for fights in the decades to come. New F-35s are being produced with TR-3 gear—but the Pentagon has stopped accepting them until the hardware can reliably run the current TR-2 software, a spokesman for the F-35 joint program office said.

TR-3 will bring 20 to 25 times more computing power, plus more memory and a new panoramic cockpit display, said Maj. Adam « Hawk » Fuhrmann, the squadron’s chief of projects.

If you look at the F-35 as a flying supercomputer, “you’re really replacing all the major components of the computer,” Fuhrmann said. 

Jackson’s squadron, which currently has 12 F-35s of all three variants, swaps aircraft every six months or so with the Pentagon’s other test sites, mainly the test squadron at Naval Air Station Patuxent River, Jackson said.

In January, the squadron took the F-35 for its first flight in the new configuration, an “important milestone” that uncovered software problems “the contractor did not identify in software labs,” according to a recent Government Accountability Office report. That has tightened the program’s timeline to complete additional tests and fix software problems.

Since the first flight, the squadron has flown the new configuration 59 times, Jackson said. 

But out of 59 tests, only seven flights have fully counted toward the 214 needed to complete developmental testing. 

“We have specific objectives that we’re trying to knock out and so we have not been able to knock out a lot of those yet,” he said. “We do 40 missions a month, and we are able to do as many of those TR-3 as possible that would support the testing. And right now, the aircraft and the software is not stable enough for us to anywhere come close to that throughput.” 

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