12 mars 2024 | International, Terrestre
Space Force mulls refueling as industry calls for funding, standards
The U.S. Space Force wants industry to invest in on-orbit refueling, but companies say they need standards first.
14 septembre 2018 | International, Aérospatial
USAF to Redesign Oxygen System on T-6 Fleet After Repeated Hypoxia-Like Issues
AMY MCCULLOUGH
The Air Force plans to redesign the oxygen system in its T-6 Texan II and adjust oxygen control levels in flight, after an exhaustive study determined that varying levels of oxygen concentrations were to blame for the hypoxia-like symptoms reported by pilots.
The service grounded its primary trainer fleet earlier this year while it inspected the Onboard Oxygen Generation System (OBOGS) on all T-6 aircraft, and it stood up an independent review team to determination potential causes.
“So far, technical efforts to date and analysis of data collected have determined that pilots have been exposed to significantly changing levels of oxygen concentration,” said Lt. Gen. Steven Kwast, AETC commander. “The varying levels of oxygen concentration, even though in excess of what the body typically needs, has caused physiological stress that most pilots, on most days, actually adapt to without noticing.” However, the physiological stress of the changing oxygen levels can cause some pilots to experience symptom similar to hypoxia (lack of oxygen), hypocapnea (lack of carbon dioxide), and other related conditions, said Kwast in a press release issued late Thursday.
It is expected to take two to four years to redesign the OBOGS system and fully stabilize oxygen levels in the T-6, a joint effort between Air Education and Training Command and Air Force Materiel Command. The two major commands also are working with industry “to adjust the OBOGS software algorithm to stabilize oxygen concentrations,” according to the release.
“While this should reduce physiological events, the Air Force will pursue a broader redesign,” states the release.
The Air Force and the Navy also have worked together to come up with new maintenance procedures to ensure the OBOGS system operates more efficiently. And, AETC will provide additional training for pilots to help them identify such symptoms and then learn how best to react if they ever encounter them in flight.
“Since our T-6 operational pause, we have made every effort to communicate with every instructor and every student exactly what we've found,” Maj. Gen. Patrick Doherty, 19th Air Force commander, said. “Transparency remains of utmost importance to use as we all work together to ensure that our pilots are safe and know the way ahead.”
Sur le même sujet
-
-
29 octobre 2020 | International, Naval
SECNAV Touts New Frigate for Possible Sale to Allied, Partner Navies
Richard R. Burgess ARLINGTON, Va. — The secretary of the Navy is bullish on the future Constellation-class guided-missile frigate (FFG) and said it may be a possible candidate for sale to the nation's allied and partner navies. In an Oct. 28 webinar discussion with retired Rear Adm. Frank Thorp IV, president and CEO of the Navy Memorial in Washington, D.C., Navy Secretary Kenneth J. Braithwaite sees the potential for service in many nations' navies for the FFG, liking the potential of sales to the large number of customers for the F-35 Joint Strike Fighter. “Why can't we create a Joint Strike Frigate?” Braithwaite mused. “Why can't we take that same platform and offer it to our allies and partners around the world? After all, it is an amalgamation of an Italian-U.S. joint effort to build that ship in a U.S. shipyard. It's already got an international footprint.” Thorp pointed out a comment Oct. 26 from National Security Adviser Robert O'Brien at the Marinette Marine shipyard in Wisconsin, where the Constellation, will be built, that building two frigates would not be enough. “We're going to need two, three, four frigates built a year to get to the numbers of where we want to be,” O'Brien told employees during a visit to the shipyard, reported Paul McCleary in the Breaking Defense website. “This yard has the capability to build two or three of them itself.” “It's great to have that kind of support in the White House and I'd love to see us build [more],” Braithwaite said. “I'm a huge fan of that ship. It is an incredibly capable vessel. ... I spent a lot of time picking the name for that ship to make it fit into the culture piece of who we are and what we are as the United States Navy. Braithwaite noted that the Navy's FFG program of record calls for 20 to be built but predicted that “we'll build more than 20 of those.” He also noted that many navies operate ex-U.S. Navy Knox- and Perry-class frigates, which could be replaced by new frigates. https://seapowermagazine.org/secnav-touts-new-frigate-for-possible-sale-to-allied-partner-navies/
-
4 décembre 2023 | International, Terrestre
Oshkosh to build JLTVs for Israel Defence Forces
Oshkosh Defense is the only manufacturer that can supply JLTVs through DCS, and will continue to support NATO, Allied, and Coalition Forces that want to modernize their militaries with the...