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V-22 オスプレイ

V-22 オスプレイに関する参考記事へのリンクです。

2024/12/21　NAVAIRがオスプレイの飛行再開を許可。ただし、問題のあるギアボックスはより厳しく管理される
Military.com
Ospreys Cleared to Fly Again, But Problematic Gearbox Gets More Scrutiny
https://www.military.com/daily-news/2024/12/20/ospreys-cleared-fly-again-problematic-gearbox-gets-more-scrutiny.html
The Navy office that oversees the military's use of the V-22 Osprey is allowing the services to resume flying the aircraft while ordering yet another key component -- one that has led to at least one deadly crash -- to undergo further scrutiny.
2024/12/21　アメリカ海軍および空軍がギアの検査後オスプレイの飛行を許可
Navy Times
Navy, Air Force cleared to fly Ospreys after inspecting gears
https://www.navytimes.com/air/2024/12/20/navy-air-force-cleared-to-fly-ospreys-after-inspecting-gears/
A cracked gear led to a November 2023 Osprey crash that killed eight airmen. The military is trying to see which Ospreys might risk a similar failure.
2024/12/21　NAVAIR、ギアボックスの懸念からV-22の新たな飛行制限を発表
USNI News
NAVAIR Issues New V-22 Flight Restrictions Over Gear Box Concerns - USNI News
https://news.usni.org/2024/12/20/navair-issues-new-v-22-flight-restrictions-over-gear-box-concerns
Navy and Marine V-22 Osprey’s have returned to flight with additional restrictions over a mechanical component of the tilt-rotor aircraft, Naval Air Systems Command announced on Friday. “NAVAIR issued a fleet bulletin directing the inspection of V-22 Osprey to verify the flight hours on each Proprotor Gearbox prior to an aircraft’s next flight,” reads the Friday statement. “Aircraft with PRGBs that currently meets or exceeds a predetermined flight-hour threshold will resume flights in accorda...
アメリカ空軍特殊作戦群での事故を受け、アメリカ海軍と海兵隊がV-22オスプレイの運用を停止
USNI News
Navy, Marine V-22 Ospreys Under ’Operational Pause’ After AFSOC Incident - US...
https://news.usni.org/2024/12/09/navy-marine-v-22-ospreys-under-operational-pause-after-afsoc-incident
This post has been updated with additional information from Air Force Special Operations Command. The Navy’s fleet of CMV-22B Ospreys are grounded under an “operational pause” and Marine Ospreys are operating under safety restrictions after an unplanned landing of Air Force Special Operation Command Osprey, USNI News has learned. Early Monday morning, Vice Adm. Daniel Cheever, commander of Naval Air Forces, ordered the pause after Naval Air Systems Command issued a recommendation to V-22 oper...
自衛隊が発表：日本のV-22事故はパイロットのミスが原因、飛行停止命令は解除
USNI News
JSDF: Pilot Error Cause of Japanese V-22 Accident, Grounding Order Lifted - U...
https://news.usni.org/2024/11/14/jsdf-pilot-error-cause-of-japanese-v-22-accident-grounding-order-lifted
An October accident of a Japanese Self-Defense Force V-22 Osprey on Yonaguni Island was due to errors of the pilot and copilot, according to a Thursday release from the JSDF. Japanese Flights of the V-22 have resumed since the Aircraft Accident Investigation Committee. The incident occurred when the Osprey was carrying out a medical evacuation drill as part of the U.S – Japan bilateral Keen Sword 25 exercise. The Osprey, assigned to the 108th Squadron, 1st Helicopter Wing, Transport Wing, was...
オスプレイの不安全事項は過去5年間で急増、死亡事故も発生 パイロットたちはそれでも飛行を望んでいる
Military.com
The Osprey's Safety Issues Spiked over Five Years and Caused Deaths. Pil...
https://www.military.com/daily-news/2024/11/19/ospreys-safety-issues-spiked-over-five-years-and-caused-deaths-pilots-still-want-fly-it.html
The Osprey is back in the air after being grounded for months following a crash last November that killed eight U.S. service members in Japan.
空軍オスプレイ墜落死亡事故に関係する鉄鋼会社が2001年に欠陥部品訴訟に直面していた
Military.com
Steel Company Tied to Deadly Air Force Osprey Crash Faced Defective Parts Law...
https://www.military.com/daily-news/2024/11/22/military-silent-contractor-linked-faulty-part-osprey-crash-and-past-allegations-of-subpar-steel.html
Military officials have refused to say whether they're still working with a company responsible for making the gear that failed on an Air Force V-22 Osprey aircraft and led to the deaths of eight airmen last year, despite long-running questions over the quality of the part and allegations of the manufacturer using lower-quality steel.
在日アメリカ空軍のオスプレイは飛行停止を継続
Military.com
Air Force Ospreys in Japan Remain Grounded After Deadly Crash, Even as Marine...
https://www.military.com/daily-news/2024/03/26/after-deadly-crash-some-ospreys-are-flying-again-japan.html
The Air Force is still not flying Osprey aircraft in Japan despite getting the green light to lift a monthslong flight hold following a deadly crash off the country's southern coast.
アメリカ海軍がV-22クラッチ改修を予算計上
aviationweek.com
U.S. Navy Budgets For V-22 Clutch Upgrade As It Narrows Down On Root Cause | ...
https://aviationweek.com/defense-space/aircraft-propulsion/us-navy-budgets-v-22-clutch-upgrade-it-narrows-down-root-cause
The Osprey fleet has since at least 2010 been plagued by an issue of hard-clutch engagement in the proprotor gearbox, which has caused multiple incidents.
V-22オスプレイが飛行を再開 訓練要領を変更するのみで機体の改修は行われない
Marine Corps Times
V-22 Osprey fleet will fly again, with no fixes but renewed training
https://www.marinecorpstimes.com/air/2024/03/08/v-22-osprey-fleet-will-fly-again-with-no-fixes-but-renewed-training/
The V-22 is allowed to fly again, and the services will each implement their own training and maintenance protocols to get the fleet back to operations.
オスプレイは飛行停止以前から安全上の問題を抱えていた
Military Times
Ospreys had history of safety issues long before they were grounded
https://www.militarytimes.com/news/your-military/2023/12/07/ospreys-had-history-of-safety-issues-long-before-they-were-grounded/
More than 50 troops have died in Osprey accidents since the early 1990s.
ハード・クラッチ問題：日本のV-22への影響は今のところなし アメリカ海兵隊機の修理は順調に進捗
Breaking Defense
Japan V-22s free from hard clutch problems for now; US Marines confident in r...
https://breakingdefense.com/2023/03/japan-v-22s-free-from-hard-clutch-problems-for-now-us-marines-confident-in-repair-plan/
"So the measure that we undertook of the flight limit bulletin, I think, probably is best summed up as that will allow us to not only to stop this increase in the rate of occurrence, but reduce it by 99 percent," a senior official told Breaking Defense.
安全確保のためオスプレイの「一部」を飛行停止 アメリカの3つの軍種と日本が運用するオスプレイのうち、何機がどのくらいの期間にわたって飛行停止になるのかは公表されていない
Breaking Defense
Pentagon grounds ‘subset’ of Osprey fleet over safety concerns
https://breakingdefense.com/2023/02/pentagon-grounds-subset-of-osprey-fleet-over-safety-concerns
An official refused to say how many of the Ospreys, flown by three US military services as well as Japan, will be grounded, or for how long.
V-22オスプレイは、皆が思っているほど危険な機体なのか? 過去に数々の挫折を味わってきたオスプレイであるが、むしろ安全で信頼できることを自ら証明してきたと言ってよい。
Task & Purpose
Is the V-22 Osprey actually as dangerous as people think?
https://web.archive.org/web/20240225112026/https://taskandpurpose.com/tech-tactics/v-22-osprey-crash-history/
"The truth is, the Osprey has proven itself to be a rather safe and reliable platform despite its setbacks."
アメリカ海兵隊はMV-22を飛行停止せず
Breaking Defense
Marine Corps will not stand down MV-22 fleet despite Air Force move
https://breakingdefense.com/2022/08/marine-corps-will-not-stand-down-mv-22-fleet-despite-air-force-move
The service has known about the clutch failure phenomenon since 2010 and feels "that we have the appropriate procedures in place to handle this emergency procedure in the event that it occurs again," a Marine Corps official said.
アメリカ空軍特殊作戦コマンドがCV-22オスプレイの飛行禁止を命令
Breaking Defense
EXCLUSIVE: Air Force Special Operations Command grounds CV-22 Ospreys due to ...
https://breakingdefense.com/2022/08/exclusive-air-force-special-operations-command-grounds-cv-22-ospreys-due-to-safety-issue
AFSOC Commander Lt. Gen. Jim Slife ordered the safety standdown on Tuesday in the wake of two safety incidents that had occurred over the past six weeks, with a total of four such events occurring since 2017, AFSOC said.
MV-22オスプレイ死亡事故（2017年）の原因
The War Zone
Harrowing Video Of Deadly 2017 MV-22 Osprey Crash Emerges
https://www.thedrive.com/the-war-zone/harrowing-video-of-deadly-2017-mv-22-osprey-crash-emerges
The MV-22 was packed full of Marines when it suddenly dropped while about to land aboard the amphibious transport dock ship USS Green Bay.
エクストーション17の墜落
Smithsonian Magazine
The Final Flight of Extortion 17
https://www.airspacemag.com/military-aviation/final-flight-extortion-17-180953947/?page=1
It was the deadliest helicopter crash in the history of U.S. special operations. Why did it happen?
V-22の可動率は半分程度、改善には時間が必要
Rotor & Wing International
UPDATED: US V-22s Can't Fly Half The Time And That Won't Improve 'Soon Enough...
https://web.archive.org/web/20211117173700/https://www.rotorandwing.com/2019/05/09/half-marine-corps-v-22s-cant-fly-wont-improve-soon-enough/
Just over half of the U.S. military’s V-22 Ospreys are ready to fly missions at any given time and the service doesn’t plan to hit its target readiness rate as soon as it would like, according to program manager Col. Matthew Kelly. The fleet’s readiness rate, including both the Marine Corps MV-22 and Air Force …

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