3 mars 2021 | International, Aérospatial
Here's Everything We Know About Skunk Works' Secretive 'Speed Racer' Program
The design is primarily intended to validate new digital engineering tools and techniques, but that could be just the beginning.
25 juillet 2018 | International, Naval
Navy, Marine Corps Racing to Increase Amphibious Fleet as Demand Rises
By: Ben Werner
CAPITOL HILL — The Navy and Marine Corps are running up against a deadline to add more amphibious warships to the fleet before older hulls start retiring, Marine Maj. Gen. David Coffman told lawmakers and shipbuilding industry representatives at a congressional forum Tuesday.
Recognizing this is a moment when the Hill is pushing to build more ships faster, Coffman said he's focused on ensuring these new ships are designed to accommodate changing technologies and remain useful for 50 years.
“We're trying to make sure we have the full ability to take advantage of a multi-year buy,” Coffman, the director of expeditionary warfare on the chief of naval operations' staff (OPNAV N95), said.
Coffman was referring to the possibility of the Navy buying 13 San Antonio-class LPD Flight II ships in a block buy contract. These ships are intended to replace Whidbey Island-class LSD ships.
As an example, Coffman cited the need to prepare future ships to handle the networking needs of unmanned and autonomous surface and undersea vehicles, which will be incorporated into the amphibious forces of the future. Unmanned surface and undersea vehicles have the potential to dramatically change the way amphibious forces operate, he said.
“We have a moonshot idea for amphibious assault, which says it'll be a long time before you see a Marine step off of something because we're going to go autonomous,” Coffman said. “Get autonomous and unmanned to do a lot of the work.”
Also, incorporating the networking needs of the F-35B Lightning II Joint Strike Fighter into ship design is critical to the Marine Corps ability to use the aircraft, Coffman said. Future amphibious assaults will most likely occur in contested, even urban areas.
Since the Marine Corps is counting on the F-35 playing an important role securing such contested locations, Coffman wants to continually ask what can be done better and how to improve the ship class' capabilities instead of just settling on a single design.
“No one else on the planet can do what we do in the littoral space,” Coffman said.
But the needs of the Navy and Marine Corps to perform in the littoral space currently outpaces the nation's amphibious warship capacity, said Rep. Rob Wittman (R-Va.). The Navy's shipbuilding plan, which calls for building a 355-ship fleet, is a good start, but the critical number Wittman said is the 38 amphibious ships included in that plan. Previously, Wittman has criticized the slow pace of the Navy's shipbuilding plan.
USS Wasp (LHD-1) is expected to reach the end of its anticipated working life by 2030. The concern is older ships such as Wasp will retire before the Navy reaches the goal of 38 amphibious ships, making it nearly impossible for the shipbuilding pace to ever increase the total number of amphibious hulls in use.
“Marines can do almost anything, Wittman said.”But until they can walk on water we better be building them more ships.”
https://news.usni.org/2018/07/24/navy-and-marine-corps-racing-to-increase-amphibious-fleet
Sur le même sujet
-
-
27 décembre 2023 | International, Terrestre
Saab receives order from NATO for RBS 70 Bolide missiles
The order value amounts to SEK 350 million and deliveries will take place during 2027.
-
15 août 2019 | International, Aérospatial
Maintainers Maintain Mission Readiness
By Airman 1st Class Adriana Barrientos Fighter jets and heavies can rule the skies, but they need to get there first. It takes strict attention to detail from aircraft maintainers to service aircraft in order to launch them to the battlefield. Airmen from the 703rd Aircraft Maintenance Squadron identified and fixed a misplaced spoiler control rod on the E-3 Sentry during a Home Station Check at Joint Base Elmendorf-Richardson, June 3, 2019. Aircraft maintainers play a huge role when it comes to mission readiness. After all, they are responsible for the upkeep of aircraft that fly through the skies. It's imperative for these Airmen to be meticulous, confident and disciplined in order to carry out their mission— inspect aircraft and troubleshoot problems. The 703rd AMXS supports JBER's worldwide contingency and maintenance operations for the 3rd Wing, 11th Air Force, and the North American Aerospace Defense Command. They are responsible for the C-17 Globemaster III, E-3 Sentry, and C-130 Hercules. Crew chiefs assigned to the 703rd AMXS are assigned to either the 962nd or the 517th Aircraft Maintenance Units. One type of aircraft maintained by the 962nd AMU is the E-3 Sentry. As an airborne warning and control system or AWACS aircraft, it performs an essential mission, distinguishing between friendly and enemy activity. It also provides airborne command and control in addition to conducting all-altitude, all-weather surveillance. “I come to work and figure out what the flying and maintenance schedule is for the day,” said U.S. Air Force Staff Sgt. John Hays, 962nd AMU crew chief lead for two E-3B/C aircraft. “On a typical day, we launch one of the jets for a four to six-hour sortie and recover the jet towards the end of the shift. Once the jet lands, the other crew chiefs and I will perform a post-flight inspection and fix anything we find.” As a crew chief, Hays performs visual inspections of the entire structure of the aircraft. These include calendar inspections, which serve to provide constant observation of all components of the aircraft to ensure reliability. It was June 3rd when an issue with the jet's spoiler rod was identified during an in-depth calendar inspection, known as a Home Station Checks. “Calendar inspections vary, but a really important one is the Home Station Check that is completed every 180 days,” said U.S. Air Force Staff Sgt. Brandon Solomons, 962nd AMU crew chief. “One of the biggest things we look for during these inspections is irregular rubbing of moving components. During our mid-shift, Senior Airman Eric Goodholm noticed one of the rods was pushed up against another component in the wing called the flap track gearbox.” In this case, it was the spoiler control rod, which was not damaged but could have potentially caused a major problem during the flight. “A spoiler control rod basically helps lift the spoiler— a vital flight control surface that allows the jet to turn in flight, as well as a brake or slow down the jet during approach and landing,” said Solomon. “The pushrod is not supposed to rub on the gearbox, so myself and our production superintendent performed further investigations,” said Hays. “I identified that the two outboard spoilers follow up pushrods were connected incorrectly to the idler arm, therefore causing the pushrod to rub on the gearbox.” The total time to fix the issue was a combined eight hours, to include an operation check. “I led the fix of the malfunction along with Staff Sgt. Solomons,” said Hays. “We disconnected and reconnected the pushrods to the idler arm correctly, which provided the proper clearance from the gearbox.” These kinds of calendar inspections allow maintainers to identify defects before malfunctions cause serious danger or harm to the aircraft or personnel. In any case, a setback with the aircraft is a setback to the mission. “After ensuring the rod wasn't damaged, we got in touch with Tinker Air Force Base, and they found the same problem on three of their jets,” said Solomons. “This discovery drove a Time Change Technical Order, implemented to prevent flight binding across the fleet.” Time Change Technical Orders, or periodic updates to aircraft that authorize the modification of a system, were pushed to keep the operational tempo on track. As an air defense system, E-3s can detect, identify and track airborne enemy forces far from the boundaries of the United States or NATO countries. It can direct fighter-interceptor aircraft to these enemy targets. Thus being a vital component to the mission in day to day operations. “Something like this could have been easily overlooked, but Senior Airman Goodholm is very thorough and paid great attention to detail,” said Solomons. After the team made modifications and the pushrods were properly connected, a rig check was performed to verify if the spoilers were in the proper configuration. “I can say Senior Airman Goodholm, Staff Sgt. Hays and I contributed by identifying and planning a course of action to fix this issue, but it was an effort as an AMU that fixed the discrepancy,” said Solomons. “With the unit's team effort and strong leadership the problem was identified, fixed and the jet was able to go and perform the mission again.” General maintenance actions and inspections by not only the 703rd AMXS, but all maintainers require attention to detail day in and day out. The lives of the crew and mission success depend on it. https://www.jber.jb.mil/News/News-Articles/Article/1933112/maintainers-maintain-mission-readiness/source/GovD/