5 novembre 2024 | International, Naval
Based on feedback from European Union member states, the requirement could be for a vessel with a displacement of 8,000 metric tons or more.
21 septembre 2020 | International, Aérospatial, C4ISR, Sécurité
The British Armed Forces are engaged in a technology race—as opposed to an arms race—as they look to gain the advantage in the government's upcoming Integrated Review. Ministers have promised that the... https://aviationweek.com/defense-space/budget-policy-operations/raf-targets-technology-review-shapes-uk-armed-forces
1 mai 2019 | International, Aérospatial
By Allen Cone April 30 (UPI) -- Boeing's prototype MQ-25 unmanned aerial refueling drone is so huge it needed help from government agencies in Missouri and Illinois to move 40 miles. With assistance from law enforcement in both states, a truck carried the aircraft -- which is the size of an F/A-18 Super Hornet fighter -- from Boeing's technical plant at St. Louis's Lambert International Airport across the Mississippi River to MidAmerica St. Louis Airport, a small regional airport next to Scott Air Force Base in rural Illinois. The semi traveled on side roads and at 5-10 mph for much of the trip Sunday night, KDSK-TV reported. Temporary road closures were in Edwardsville, Marine and Lebanon as the jet moved through. The plane arrived before 6 a.m. Monday, KMOV-TV reported. The regional airport is in less crowded airspace, which "gives us some flexibility in how we can fly," Dave Bujold, the Boeing program manager overseeing drone project, told The Drive. Boeing plans to test fly the MQ-25 Stingray, known as known as T-1 or "Tail 1," before the end of the year. But first it must pass ground taxiing tests and the Federal Aviation Administration must certify the aircraft and grant clear airspace for it to fly. Ground control stations are being installed at the airport. The Boeing test aircraft later will undergo testing on the East Coast. The Navy will also hoist it onto an aircraft carrier for deck handling testing. "By the time the Navy's assets are jumping in the air, we will already have had thousands of test hours on the ground and hundreds in the air," Bujold said. The first Navy aircraft is scheduled to fly in fiscal year 2021. Last August, Boeing was awarded a $805 million contract to build four aircraft for the U.S. Navy. The drones, which won't carry weapons, will be based on aircraft carriers to refuel other aircraft mid-flight, including the Boeing F/A-18 Super Hornet, Boeing EA-18G Growler and Lockheed Martin F-35C fighters. "The MQ-25 program is vital because it will help the U.S. Navy extend the range of the carrier air wing, and Boeing and our industry team is all-in on delivering this capability," Bujold said. Curtiss-Wright's Defense Solutions, which has been a Boeing contractor for 60 years, announced last week it has been awarded a contract by Boeing to supply data technology systems for the program. https://www.upi.com/Defense-News/2019/04/30/Boeings-MQ-25-refueling-drone-moved-to-air-base-for-flight-testing/5091556634478/
25 juin 2020 | International, Aérospatial
By: Valerie Insinna WASHINGTON — The most widely used variant of the F-35 Joint Strike Fighter is currently unable to fly in thunderstorms after the discovery of damage to one of the systems it uses to protect itself from lightning, its prime contractor Lockheed Martin said Wednesday. To safely fly in conditions where lightning is present, the F-35 relies on its Onboard Inert Gas Generation System, or OBIGGS, which pumps nitrogen-enriched air into the fuel tanks to inert them. Without this system, a jet could explode if struck by lightning. However, damage to one of the tubes that distributes inert gas into the fuel tank was discovered during routine depot maintenance of an F-35A at Hill Air Force Base's Ogden Logistics Complex in Utah, Lockheed said in a statement. Lockheed temporarily paused F-35 deliveries June 2-23 as the company validated whether it was properly installing OBIGGS systems. However, “it appears this anomaly is occurring in the field after aircraft delivery,” Lockheed said in a statement. Lockheed has since delivered two F-35s, company spokesman Brett Ashworth said. Because it cannot be confirmed that the OBIGGS system would function properly if the jet was hit by lightning, the F-35 Joint Program Office has opted to institute flight restrictions. “As a safety precaution, the JPO recommended to unit commanders that they implement a lightning flight restriction for the F-35A, which restricts flying within 25 miles of lightning or thunderstorms,” Lockheed said. “We are working with the F-35 Joint Program Office (JPO) on a root cause corrective action investigation to determine next steps.” The issue only seems to affect the F-35A conventional-takeoff-and-landing variant, which is used by the U.S. Air Force and the majority of international customers. The OBIGGS design is slightly different on the F-35B short-takeoff-and-vertical-landing variant due to the aircraft's lift fan, and the problem has not been observed on F-35C carrier-takeoff-and-landing aircraft, Ashworth said. Bloomberg, which obtained a JPO memo dated June 5, reported that flawed tubes were found in 14 of the 24 “A” models inspected. The JPO did not respond immediately to a request for comment. For a plane nicknamed “Lightning II,” the F-35′s lightning protection systems have, ironically, become an embarrassing problem issue for the jet at times throughout its development. The F-35 was prohibited from flying within 25 miles of lightning in the early 2010s after the Pentagon's weapons tester discovered deficiencies with the original OBIGGs system in getting enough inert gas into the fuel tanks. Those restrictions were rescinded after the OBIGGS was redesigned in 2014. https://www.defensenews.com/air/2020/06/24/the-f-35-lightning-ii-cant-fly-in-lightning-once-again/