Coast Guard to Re-Compete Multi-Billion Dollar Offshore Patrol Cutter Contract

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  March 12, 2024 | International, Land

  EU to mull measures against Iran over possible missile transfers to Russia - draft

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  August 1, 2018 | International, Aerospace

  Air Force begins in-house JSTARS maintenance amid Northrop Grumman’s shortfalls

  By: Kyle Rempfer The Air Force began conducting its own depot maintenance for JSTARS July 17 at Robins Air Force Base, Georgia, in an effort to field the Air Force's primary ground surveillance and battle management aircraft quicker, despite contractor shortfalls. Maintenance for the E-8C Joint Surveillance Target Attack Radar System aircraft was previously done exclusively by Northrop Grumman at a facility in Louisiana, but the service has said the maintenance was too slow. Now, Warner Robins Air Logistics Complex will supplement the contractors to speed up the process. “Historically, the contractor has averaged about 400 days per aircraft,” Air Force Material Command spokesman Derek Kaufman told Air Force Times. “The driver has been to increase the number of aircraft available for operations and training. The Air Force intends to fly JSTARS into the mid-to-late 2020s, while the follow-on Advanced Battle Management System [ABMS] is developed," Kaufman said. The Air Force has not released exactly what the ABMS entails, but it will fuse information from satellites, drones, ground sensors and manned ISR aircraft. Because Robbins AFB is also playing host to the initial elements of the ABMS program, Kaufman said the base will continue to play a role in the command and control mission. In the meantime, maintenance delays for existing JSTARS must be streamlined, according to the press release announcing the push. “We've been focusing intensely for a couple of years on improving contractor-led depot performance, but aircraft are still remaining in depot too long,” said Steven Wert, the Air Force's program executive officer for battle management, who oversees these efforts. “We have to find ways to increase throughput and overall depot capacity, and we believe this option is well worth exploring.” The work done at the new facility will help the Air Force better understand the costs of performing JSTARS depot maintenance on its own. “Should this first organic induction prove successful, we currently plan two more JSTARS aircraft to be inducted, one per year,” Kaufman said. It's important to note that this maintenance plan is separate from efforts to retire the Air Force's fleet of 17 JSTARS. The 2019 defense authorization bill allocates funds for the ABMS program, but the Air Force will not be able to retire any of these planes until the second phase of that program is declared operational, according to Congress' bill. As a result, service officials are anxious to get more JSTARS into the air for operations and training while waiting to bring the ABMS program online. In addition to slow delivery, Northrop Grumman has had some issues with their maintenance in the past. An Air Force investigation released in March 2017 showed that contract maintainers left drainage holes covered on the bottom of a JSTARS' radome during depot maintenance between March 2015 and July 2016. This caused the radome to collect water and inflicted $7.35 million worth of damage to the aircraft. That damage was discovered on July 28, 2016, when the JSTARS aircraft assigned to the 116th Air Control Wing at Robins experienced radar failures during checks conducted by Air Force radar specialists. “When the specialists opened the radome for the radar, they discovered portions of the radar immersed in standing water with visible corrosion damage,” the report states. In the future, inducting more aircraft into the Air Force's own depot maintenance facility could offer some advantages, according to the service. The program office, operational wings, functional check flight crews and Air Combat Command's flight test detachment are all co-located at Robins. These locality benefits could help cut down on transportation costs. Additionally, start-up costs should be minimal because Robins already hosts the E-8C operational wings, according to the Air Force. “Our dedicated professionals and mission partners have extensive experience in overhauling and modifying large aircraft like the C-130, C-17 and C-5 fleet. I'm confident our team can leverage this experience and help the JSTARS community improve aircraft availability,” said Brig. Gen. John Kubinec, commander of Warner Robins Air Logistics Complex, in another press release. “Our team is excited about this opportunity and we stand ready to support this effort by working closely with the PEO and Northrop Grumman.” The Air Force still has an agreement with Northrop Grumman that runs through 2022, called a Total System Support Responsibility contract. The depot maintenance at Robins “would supplement, not supplant," the work being done by the existing contract, the Air Force clarified. “In fact, the Air Force will need Northrop's help to successfully execute this proof of concept,” according to the release. https://www.airforcetimes.com/news/your-air-force/2018/07/31/air-force-begins-in-house-jstars-maintenance-amid-northrop-grummans-shortfalls/

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  October 11, 2019 | International, Aerospace

  Sikorsky ratchets up robotic control of Black Hawk in runup to pilotless flight

  Sikorsky has dialed up the autonomous flight control system on an experimental UH-60A Black Hawk to where a pilot can “set it and forget it” during long surveillance missions, another step toward flying the aircraft remotely from the cabin or from the ground without pilots on board. To date, Sikorsky has put 54.5 flight hours on its optionally piloted vehicle (OPV) flight control system, which is designed as a kit that replaces all legacy mechanical controls in existing aircraft with its MATRIX autonomous fly-by-wire controls. It has also run about 30 hours on the ground in the UH-60A, one of the oldest Black Hawks in the Army's inventory, according to chief test pilot Mark Ward. During the first of MATRIX in a Black Hawk in May, Sikorsky focused on the direct mode control scheme, which means the fly-by-wire controls should fly and respond to pilot input like a conventional UH-60 Black Hawk, Ward said. Technically, the mode is “direct stick-to-head with stability augmentation in the loop.” “Direct mode is supposed to be, more-or-less the service mode or an emergency mode, but we found the aircraft behaved quite well throughout all the speed regimes in that mode,” he said. Sikorsky briefly paused the flight test program to “fine tune” some of the pilot control augmentation modes, “so that when we go to autonomy we're going to have a very mature system that goes from full-spectrum of pilot 100 percent in the loop, to autonomy 100 percent in the loop and everywhere in between,” he said. Test pilots have since ratcheted up computer control of the aircraft and expanded the flight envelope out to 150 knots indicated airspeed. Most interestingly, the test team is beginning to increase the level of flight control augmentation beginning with “direct mode.” In “rate command attitude hold” mode, the fly-by-wire system takes over more control of the aircraft, Ward said. That mode was tested through low-speed hover maneuvers out to 150 knots. “When you put a control input, you're controlling a rate or an attitude change and when you release the control, you're capturing that attitude,” he said. From there, test pilots increased autonomous control of the aircraft to the full authority control scheme, or FACS, in which “rather than commanding a rate, you're actually commanding a parameter, such as airspeed or altitude or heading using the control stick,” Ward said. “To change from one mode to the next is simply a button push away to go from direct to rate command, up to FACS and back down,” he said. “Think of full authority as being an ultra-stable ISR platform that is going to be holding flight parameters for very long periods of time,” he said. “You kind of want to set it and forget it. You're not turning knobs on a flight director. You are actually flying the aircraft with the control stick.” “Rate command is when you kind of want to . . . throw it around a little bit, you want to do some low-and-slow or low-and-fast maneuvering where you're going from stop to stop to complete a mission.” Sikorsky uses the phrase “optimally piloted vehicle” as well as “optionally piloted vehicle” when discussing OPV and MATRIX because the ultimate goal is to develop a system that can act as an autonomous co-pilot quietly but constantly aiding human operators during specific missions. The OPV kit is tailored to the UH-60, but is retrofittable onto the Army's entire helicopter fleet and Sikorsky's commercial S-92 and S-97 rotorcraft, according to Igor Cherepinsky, the company's director of autonomy. Sometime in 2020, Sikorsky will demonstrate that the system can be remotely piloted from both inside and outside the aircraft, he said. “We will show the world this system is capable of being operated from the ground,” he said. Sikorsky continues to demonstrate MATRIX on a modified S-76B called the Sikorsky Autonomy Research Aircraft (SARA). The aircraft, which has been in test since 2013, has more than 300 hours of autonomous flight. The company announced in March that its S-92 helicopter fleet update will include the introduction of phase one MATRIX technology, which will allow for autonomous landing. The U.S. Army has plans to outfit a UH-60M with the system but is about six months behind Sikorsky's OPV test program. “Our vision is, obviously, not to replace the pilots, but to augment the pilots,” Cherepinsky said. “Once we field the technology, we never want to see another controlled flight into terrain or degraded visual environment issue accident ever happen with any of our aircraft.” https://www.verticalmag.com/news/sikorsky-ratchets-up-robotic-control-of-black-hawk-in-runup-to-pilotless-flight/