Back to news

March 31, 2020 | International, Aerospace

USAF Announces New Major Deficiency On KC-46

Lee Hudson

The U.S. Air Force has upgraded an existing deficiency for the KC-46A Pegasus fuel system to Category 1.

The service's program office first identified “excessive fuel leaks” in July after an air refueling test. The Air Force and Boeing are working together to determine the root cause and implement corrective actions. A Category 1 deficiency means the government has identified a risk that jeopardizes lives or critical assets.

“The KC-46 Program Office continues to monitor the entire KC-46 fleet and is enhancing acceptance testing of the fuel system to identify potential leaks at the factory where they can be repaired prior to delivery,” according to an Air Force statement.

Boeing is contractually obligated to rectify this deficiency at no additional cost to the Air Force.

“We are disappointed to learn of this development and are already implementing assembly and installation improvements to correct the issue,” Boeing spokesman Larry Chambers said in a statement to Aerospace DAILY. “We have repaired several of the airplanes and will continue to implement repairs as needed. Boeing is working with urgency to address this issue.”

The Air Force discovered several required fuel-system repairs, Chambers said. The fuel system is equipped with redundant protection for fuel containment.

“In some cases with this issue, aircraft maintenance crews are finding fuel between the primary and secondary fuel barriers within the system,” Chambers said.

The KC-46A program still faces other unresolved Category 1 deficiencies that involve the Remote Vision System (RVS) and the boom telescope actuator. The problem with the RVS is what the Air Force calls a “rubber sheet” effect that distorts the image on the visual display used by the boom operator during refueling operations. The actuator on the boom needs to be more sensitive to smaller receiver aircraft, such as A-10s and F-16s. Boeing has agreed to pay for the RVS design fix, while the Air Force will finance the design change to the actuator.

“There's profound problems with the system,” Air Force Chief of Staff Gen. David Goldfein said March 3 during a Senate Armed Services Committee hearing.

The service is certifying the aircraft to conduct airlift and medical evacuation missions. The plan is for the Air Force to employ the KC-46 in those roles while a long-term fix is being developed, Goldfein said.

Goldfein told new Boeing CEO Dave Calhoun to focus on the KC-46 program, even as it is fixing the 737 MAX. Calhoun said the KC-46 is his top military priority.

“I have seen a change in the behavior of that company since he took over, and so that's why we're more confident sitting here today that we have a serious fix on the table,” Goldfein said. “We're in final negotiations, so we can't go into any more detail than that. But I will say that it's looking better today than it was even six months ago.”

https://aviationweek.com/defense-space/aircraft-propulsion/usaf-announces-new-major-deficiency-kc-46

On the same subject

  • State Department OKs $6.9 billion in arms sales in one day

    November 21, 2019 | International, Aerospace, Naval, Land

    State Department OKs $6.9 billion in arms sales in one day

    By: Aaron Mehta WASHINGTON — The U.S. State Department on Wednesday cleared four potential foreign military sales packages, which combine for an estimated price tag of over $6.9 billion. The four packages, if approved by Congress, would involve AH-64E Apache helicopters for Morocco ($4.25 billion), C-130J aircraft for New Zealand ($1.4 billion), naval guns for India ($1.02 billion), and jammers for improvised explosive devices to Australia ($245 million). The notifications were posted on the website of the Defense Security Cooperation Agency. DSCA notifications are not final sales; once cleared by Congress, the sales enter negotiations, during which quantities and costs can shift. The largest package, Morocco's Apache request, is the first from that country for fiscal 2020 after dropping six FMS requests in FY19, to the tune of $7.27 billion. Read more about the Apache request here. New Zealand's request would cover five C-130J transport aircraft, manufactured by Lockheed Martin. That nation currently operates the older C-130H aircraft, so it's familiar with the airframe. “This proposed sale will provide the capability to support national, United Nations, and other coalition operations,” the DSCA notification reads. “This purchase also includes sensors and performance improvements that will assist New Zealand during extensive maritime surveillance and reconnaissance as well as improve its search and rescue capability. Additionally, the extra cargo capacity and aircraft performance will greatly increase New Zealand's Antarctic mission capabilities while simultaneously increasing safety margins.” India's request covers as many as 13 MK 45 5-inch/62-caliber (MOD 4) naval guns, along with 3,500 rounds of D349 Projectile ammunition. Those weapons will be used for “antisurface warfare and anti-air defense missions,” according to DSCA. The program will be managed by BAE Systems, with some sort of industrial offset to be arranged later. Australia, meanwhile, wants up to 850 Joint Counter Radio-Controlled Improvised Explosive Device Electronic Warfare Increment 1 Block 1 systems, or JCREW I1B1 for short. These are anti-IED jammer systems; the DSCA announcement says Australia is “interested in procuring the dismounted and mounted variants that have a modular, open architecture and are upgradeable in order to maintain capability against evolving global threats.” Those systems are produced by Northrop Grumman. The start of FY20 has been good for FMS requests. Since the fiscal year started on Oct. 1, there have been 13 requests cleared by the State Department, with a total estimated value of $13.439 billion in potential sales. The head of the DSCA, Lt. Gen. Charles Hooper, has said he hopes a series of reforms will help keep sales strong. https://www.defensenews.com/global/asia-pacific/2019/11/21/state-department-oks-69-billion-in-arms-sales-in-one-day

  • Netherlands ‘very welcome’ to join European sub program — with a caveat

    April 5, 2018 | International, Naval

    Netherlands ‘very welcome’ to join European sub program — with a caveat

    By: Sebastian Sprenger COLOGNE, Germany — The Netherlands would be welcome to join a German-Norwegian submarine acquisition program, even as the door is closing for final design work on the boats, the Norwegian defense ministry said. The statement comes as German defense industry officials have talked for weeks about what they believe is an impending move to reshuffle big-ticket shipbuilding programs by way of a new naval cooperation umbrella with the Dutch. In that telling, The Hague would join the purchase of 212CD-class submarines, built by Thyssen Krupp Marine Systems' undersea division, and gain a say in the fate of Germany's Mehrzweck-Kampfschiff 180 frigate program, from which the surface division of TKMS was excluded last month. While Berlin and The Hague have officially kept mum about details, several German industry officials and analysts surveyed for this article believe the prospect of a Dutch move is keeping the MKS-180 program's fate unpredictable. When asked about the Netherlands' interest in the German combat ship effort, Dutch defense ministry spokesman Peter Valstar only wrote in an email to Defense News that senior acquisition officials from both countries had met recently to discuss “various topics like possible cooperations on all kinds of defense projects.” As for submarines, “We're currently in the B-phase (research) of our so-called ‘Defence Material Process,‘” Valstar wrote. “The ‘need' (A-phase) of a submarine purchase is clear. The C-phase (further research) and D-phase (product and supplier) are still to come.” Norway has always considered the door open for additional submarine buyers since Oslo teamed with Berlin last year. The joint acquisition would see Norway buy four boats and Germany two. Buying and maintaining identical submarines would keep cost down for both countries, the argument goes. “Norway and Germany would like to see additional partners joining the cooperation, and it would be very welcome if the Netherlands should decide to join,” Norwegian defense ministry spokeswoman Ann Kristin Salbuvik wrote in an email to Defense News. “We are working together towards several potential nations, and we have a good dialogue with potential partners,” Salbuvik added when asked if the Dutch had formally expressed an interest. But the door is closing for would-be partners to have a say in the boats' configurations. “The design of the German-Norwegian submarines will soon be frozen in order for the supplier, TKMS, to be able to provide a binding offer in July 2018,” the spokeswoman wrote. “After this point in time, design changes will be costly, and will also have a negative impact on time and delivery schedules for the German-Norwegian submarine building program,” she added. “If additional partners join the cooperation, it will be beneficial for them to strive for as identical a design as possible.” It is unclear how far discussions for a Dutch-German naval armaments pact have bubbled up toward the defense ministries' leaders. But the issue is “very much a topic of conversation in political Berlin,” one source noted. If given the chance to tweak the MKS-180 configuration, the Dutch would push for a smaller ship design than is currently envisioned, one industry source predicted. With Damen Shipyards, the Dutch already have local industry in the running for the program, teaming with Germany's Blohm &Voss, which is now part of the German Lürssen group. https://www.defensenews.com/global/europe/2018/04/04/netherlands-very-welcome-to-join-european-sub-program-with-a-caveat/

  • Advanced Air and Missile Defense, in the Hands of Soldiers

    May 29, 2020 | International, Aerospace, Land

    Advanced Air and Missile Defense, in the Hands of Soldiers

    May 27, 2020 - It's a cold December morning at White Sands Missile Range in New Mexico, and two surrogate cruise missile targets have just been launched, one after the other. They are flying separate courses among the jagged San Andres and Sacramento mountains toward soldiers in a U.S. Army Air and Missile Defense unit at a test site called TAC-2 – Tactical Command Post 2. These sophisticated targets precisely mimic real cruise missile threats and can take advantage of this terrain to hide from the radars and sensors commanders have positioned in the area. This can create gaps in tracking that make the job of interceptor missiles or other defensive weapons more difficult – you can't hit what you can't see. Today, though, their maneuvers won't enable them to evade detection. This is Flight Test 5 (FT-5), the most sophisticated and difficult development test yet for the Army's Integrated Air and Missile Defense (IAMD) Battle Command System (IBCS), developed by Northrop Grumman. High above the range, sensors aboard U.S. Air Force F-35 fighter aircraft see and acquire the two surrogate missiles. IBCS integrates the aircraft sensor data with that of available ground sensors, including Sentinel, Patriot weapon system and U.S. Marine Corps TPS-59 radars. All share information via the IBCS Integrated Fire Control Network (IFCN). As one sensor loses sight of the threats – and each will at some point – the targets are acquired by other sensors on the IFCN, enabling IBCS to create a precise, uninterrupted composite track of each missile's movements. With data from every sensor, IBCS produces a single integrated air picture on the screens of the air defense soldiers at TAC-2. They see every change in altitude and direction as the two surrogate missiles paint tracks across their screens. Because IBCS enables joint weapons as well as joint sensors, the defenders at the controls can select the best effector to use against these targets. Today, the soldiers are about to launch two Patriot Advanced Capability 2 (PAC-2) interceptor missiles. “Without IBCS, all those different sensors operate independently, creating opportunities for threats to avoid detection as they fly to a target,” explained Northrop Grumman IBCS Program Director Mark Rist. “Without being integrated onto a network, these sensors produce a more ambiguous, less-clear air picture, making engagements of threat systems more challenging.” He is monitoring FT-5 from miles away, in the test's mission control room. The soldiers at TAC-2 can be heard on the radio, calm but urgent voices reporting “target acquired” by airborne sensor, and talking of the “IP” or intercept point, and “kill box.” It's only been moments since the threats were launched, but now comes “Free to engage ... Missile away ... Missile away ...” One, then another PAC-2 interceptor missile is launched by the soldiers. IBCS is not only able to launch the missiles, but also plays a critical role in the engagement by actively closing the fire control loop and providing in-flight updates as the PAC-2s converge on their targets. The surrogate cruise missile targets are closing in and can now be seen on video in the control room – and then suddenly they can't: One, then the other disappears in a ball of fire as the PAC-2s destroy them. Cheers erupted in the control room, and those of Rist and his team may have been loudest among the many generals, colonels and visiting officials that day at White Sands. After years of effort, working closely and constantly with soldiers, FT-5 fully demonstrated IBCS's unprecedented capability to integrate sensors and effectors to detect, track and simultaneously engage multiple targets in flight. “Information is ammunition, and IBCS is providing soldiers with more,” Rist said. “We brought a lot of things together in this development test. It was the first including joint operations with the Air Force F-35 and Marine Corps radar systems, the first with Air Defense Artillery soldiers at the controls, and the first involving software developed using our Agile methodology.” FT-5 was the latest in a series of test successes, and further evidence of the program's maturity as soldiers train on IBCS equipment in preparation for an important Limited User Test (LUT) this spring. “I'm very proud of these soldiers and of the system's performance,” said Colonel Phil Rottenborn, Army IAMD project manager. “This was the first time soldiers conducted a live engagement using IBCS in a developmental test, and they showed we are ready to go into the operational test phase.” “Success!” said Col. Tony Behrens, Army Capability Manager for the Air and Missile Defense (AMD) Command, and a nearly 26-year career Air Defense Artillery (ADA) officer. “It showed me that an Army operator – not an engineer or software developer – can sit at that console and do his or her job. I am very comfortable and confident about the path we're on.” IBCS enables soldiers to be even more effective by integrating all the systems' data and providing a common command-and-control (C2). Soldiers will only need to learn to use the IBCS C2, instead of spending time becoming specialists on only one or two of a dozen different sensor and weapon systems. That enhances IBCS's already impressive battlefield survivability, because soldiers will be capable of using any of the available sensors with any available weapon systems at any command post connected to the self-connecting, self-healing IFCN. Also, less time will be spent in recurrent training, making more time available for teaching operators defense strategy and how to fight. The IBCS “every sensor; best effector” concept gives commanders greater flexibility in defense design, allowing them to position resources for greatest coverage in far less time essentially helping to change the way soldiers see and fight air battle. Northrop Grumman's open-architecture system-of-systems approach to IBCS eases the integration of any new or legacy sensor and effector systems, which is important for U.S. joint operations and to foreign governments. Poland has an agreement with the U.S. Army to purchase IBCS for modernization of the nation's WISLA medium-range air defense system, and other countries have expressed interest as well. With the success of FT-5, Northrop Grumman will now focus on the Army's Limited User Test planned for later this year, followed by the low-rate initial production and full-rate production phases of the system, to field IBCS to Army air defenders in fiscal year 2021. Behrens said the Army must have the IBCS capabilities to be effective and successful in future combat operations. “To me, it's beyond critical,” he said. “We're not just giving soldiers a new piece of equipment, a new piece of gear. We're going to give them an entirely new way of operating on the battlefield that is so much more efficient. But it has to start with the system that enables you to do that.” IBCS may also be the Army's first big step toward multi-domain convergence – the next level above integration. “Enabling multi-domain – or more accurately, all-domain – operations is vital to ensuring battlefield advantage and superiority,” said Brig. Gen. Brian Gibson, director of the Army's AMD Cross-Functional Team, at an Association of the U.S. Army event in early March. “When successfully fielded, IBCS will be one of the Army's pathfinder capabilities into what is becoming a top priority for our military leaders: joint, all-domain command and control.” Media Contact Kenneth Kesner 256-327-6889 Kenneth.Kesner@ngc.com View source version on Northrop Grumman: https://news.northropgrumman.com/news/features/advanced-air-and-missile-defense-in-the-hands-of-soldiers

All news