August 3, 2024 | International, Aerospace, C4ISR
February 10, 2024 | International, Land
In support of this contract, Peraton will be hiring roles in the following key areas: cybersecurity, system administration, information technology optimization and automation, and managed network services.
July 28, 2020 | International, Aerospace, Naval
The U.S. Navy's F/A-18 and EA-18G fleets have experienced a dramatic turnaround. In 2017, less than half of the Navy's Boeing F/A-18 Super Hornets were able to fly. Now, 80% of its carrier-based fighters are ready for missions. The solution involved fixing a single component within the General Electric F414 engine. The Navy faulted constrained spending following the 2008 financial crisis and increased demand from the wars in the Middle East as reasons for the fleet's lack of readiness. More specifically, those conditions exacerbated an issue embedded in the military's vast supply chain. For 20 years, the Super Hornets and EA-18G Growlers have continually had electronic systems and new sensors added that placed greater and greater demand for power from its General Electric engine. That demand taxed a key component of the F414's electrical power generation system—its generator control unit (GCU), which keeps the generator output within a specified range. Initial attempts to address the GCU's issues through “component-level reliability improvements were not sustainable,” Navy spokeswoman Gulianna Dunn tells Aviation Week. Eventually, the GCU, already in short supply, failed to keep pace, causing a cascading effect on the availability of the carrier-based fighters. In the words of a Navy program official, the GCU was the “top platform degrader for all naval aviation.” When sequestration-era spending limits were imposed on the Pentagon in 2013, the entire military faced across-the-board funding cuts, including the operations and maintenance accounts. The Navy had to make tough choices about what bills it would pay and what to defer. At the same time, flight hours for the Super Hornet and Growler in the Middle East increased to meet the high operational tempos of Operation Enduring Freedom and Operation Inherent Resolve. As the Navy reduced aviation sustainment budgets, the program office did not have sufficient funding to purchase spare parts. From fiscal years 2013-16, the program office requested between $193.6-311.5 million and received between $85.2-136.3 million, according to a 2019 Defense Department Inspector General report. To compensate, Navy officials cannibalized aircraft to obtain the required spare parts. Maintainers removed working parts from an aircraft and installed them on a second jet to make that aircraft operational. A backlog of spare parts exacerbated fleet readiness and availability rates—an issue that affected the GCU acutely. New mission payloads created new types of electrical load, straining the aircraft's electronics, and wearing out the GCU at a faster rate. The second-generation (G2) and G3 GCU models that equipped the fleet could handle only about 150 flight hours. To increase reliability General Electric Aviation Systems, in consultation with the Navy, began working to redesign the GCU. A G3-to-G4 conversion kit could reach up to 532 flight hours. A G4 GCU was even better—sustaining 1,220 flight hours. Naval Air Systems Command (Navair) flight-tested the G4 in August 2015, and GE started production in mid-2016, Joe Krisciunas, general manager and president of GE Aviation Electrical Power Systems, tells Aviation Week. But the part was still only being manufactured at a minimal rate. The matter came to a head in October 2018, when then-Defense Secretary Jim Mattis set an 80% mission-capable readiness goal. At the time, only 260 F/A-18 and EA-18G aircraft were capable of flying missions—approximately 60%, far short of the mandate. In response, the Navy convened a Reliability Control Board (RCB) in 2019 to improve the F/A-18 and EA-18G mission-capable rate. The board pinpointed the main problem—insufficient production of the F414's GCU. The Navy had 200 of the units on back order. Navair worked with GE to ramp up GCU production, according to Lt. Cmdr. Jason Shaw, power and propulsion lead at the F/A-18 and EA-18G program office. The RCB determined GE was producing roughly six GCUs per month that would funnel into the program office, Boeing or Naval Supply Systems Command (Navsup). The program and Boeing had predictable delivery schedules, but Navsup would only receive GCUs that were produced beyond what the other two contracts required. “It created a hole on the supply shelf,” Shaw says. “When a jet would lose a GCU, there was no other one to replace it from supply.” The team brainstormed and decided GE would increase production to about 21 GCUs each month, while Navair would defer a contract for 320 GCU conversion kits to 2021. Pushing the contract would leave room for Navsup to acquire a more predictable delivery schedule. The company doubled its GCU production rate from 2018 to 2019, and almost doubled it again in 2020 to reach the 21 units per month rate, Krisciunas says. These courses of action resulted in zero GCU back orders by mid-June 2020. Additionally, the team is working with GE to resolve production issues related to GCU testing capacity. The plan is to purchase new, larger test stands and upgrade software on existing test equipment. This would allow the company to conduct more tests and further increase production. The test stand is a large electric motor that simulates the engine spinning the gearbox, and it has a pad that duplicates the GCU interface. A test stand costs approximately $1.5-2 million and typically takes 15-18 months to get up and running, Krisciunas says. Still, more improvements are being made: The program office is now assessing wiring issues that may have also contributed to low GCU reliability. The service awarded a $17 million contract to purchase additional software and cables for Automated Wiring Test Sets, which will allow aircraft mechanics to identify system faults. “The U.S. Navy is the only [Pentagon] military branch to have met and sustained the 80% readiness call that Mattis put out, and that is largely associated with resolving the issues with GCUs,” Shaw says. https://aviationweek.com/defense-space/aircraft-propulsion/how-one-component-improved-us-navy-fa-18-fleet-readiness
September 20, 2019 | International, Aerospace
By: David B. Larter WASHINGTON — The U.S. Navy's MQ-25 Stingray refueling drone, destined to be the first carrier-launched autonomous unmanned aircraft integrated into the service's strike arm, took its first test flight from MidAmerica Airport in Illinois, Boeing announced Thursday. The two-hour flight, remotely controlled by Boeing pilots, tested the basic flight functions of the aircraft, a Boeing statement said. “The aircraft completed an autonomous taxi and takeoff and then flew a pre-determined route to validate the aircraft's basic flight functions and operations with the ground control station,” the release said. Boeing's project head said it was an important step toward getting the drone on the flight deck. “Seeing MQ-25 in the sky is a testament to our Boeing and Navy team working the technology, systems and processes that are helping get MQ-25 to the carrier,” MQ-25 Program Director Dave Bujold said in the release. “This aircraft and its flight test program ensures we're delivering the MQ-25 to the carrier fleet with the safety, reliability and capability the U.S. Navy needs to conduct its vital mission.” An $805 million contract awarded to Boeing last August covers the design, development, fabrication, test and delivery of four Stingray aircraft, a program the service expects will cost about $13 billion overall for 72 aircraft, said Navy acquisition boss James Geurts. The award to Boeing kicks off what the Navy would is aiming to be a six-year development effort moving toward a 2024 declaration of initial operational capability. At the end, it will mark a historic integration of drones into the Navy's carrier air wing. The MQ-25 flown Thursday is a Boeing-owned test asset and a predecessor to the first four engineering design model aircraft provided for under last year's contract. The model “is being used for early learning and discovery to meet the goals of the U.S. Navy's accelerated acquisition program,” the release said. The Stingray was a priority pushed by the Navy's previous chief of naval operations, Adm. John Richardson, who saw it as a chance to force a program through the system and field a new capability quickly. “The MQ-25 was really a signature program to test the limits and plow new ground in that direction,” Richardson told Defense News last April. "And so we brought industry in way earlier. I think that's key to getting the acquisition cycle faster, even in the refinement of the requirements phase. “And so that's where we've been with MQ-25, is to bring them in, see what they've got and see how fast they can get a prototype together to fly. One thing we did do was we locked down on requirements. We could probably get agreement from everybody that we need something to tank. It liberates a lot of our strike fighters from doing that mission and it's something that we can get done ― its relatively straightforward.” https://www.defensenews.com/naval/2019/09/19/the-us-navys-new-autonomous-refueling-drone-takes-historic-first-flight