V-22 Osprey
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Vídeo de MV-22B de los USMC operando en la cubierta del JCI durante el ejercicio Baltops24: https://x.com/EMADmde/status/1802783269638779218
También se entrenaron con los franceses: https://x.com/STRIKFORNATO/status/1801578771612303851
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Parece que la fatiga fue la causa del accidente del Osprey que se accidentó el pasado año en Japón: https://www.airforcetimes.com/news/your-military/2024/08/07/metal-weakness-may-have-led-to-fatal-osprey-crash-off-japan/
Además, en el artículo publican datos sobre las problemáticas reductoras:
By Tara Copp and Aaron Kessler
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Data gathered by The Associated Press through the Freedom of Information Act shows 609 proprotor gearboxes have been removed for repair in the past 10 years. Over the last five years, the Marine Corps, Navy and Air Force have reported 60 incidents involving the proprotor gearbox.Last week the Air Force identified cracking in a pinion gear, a part that’s about the size of a large jar lid, as one of two factors that caused the crash off Japan. The Air Force also faulted the pilot and crew, because the Osprey sent six warnings during their flight that the proprotor gearbox was in trouble.
But additional crash report documents obtained by the AP show this is not the first time this metal has failed in Osprey proprotor gearbox components, although it was the first time it failed in this specific gear. There have been seven previous cracking incidents in related gears that were likely caused by the same metal weakness, investigators reported.
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The gearbox is a sealed system, meaning ground crews on base can’t open it to inspect the gears for inclusions, and even if they could, they don’t have the machining needed to detect the microscopic defects, Air Force Special Operations Command head Lt. Gen. Michael Conley told AP in an interview.“So in the field, there’s nothing we could have done to detect this,” Conley said.
And Bell Flight can't test the whole gear for inclusions either without multiple cuts into it, which would destroy the part. The primary safeguard is process control during manufacturing, the report said.
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Until at least mid-2025, the Osprey is expected to remain under flight restrictions that require it to stay within 30 minutes of a spot to land, among other safety checks.Air Force Special Operations Command only has 51 Ospreys, but it’s had to remove 132 proprotor gearboxes for repair in the past 10 years, according to data obtained by the AP. The Marine Corps purchased 360 Ospreys and currently operates about 270. Over the past 10 years it’s removed 464 proprotor gearboxes. The Navy, which has 27 in the fleet, has removed proprotor gearboxes 13 times.
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Errores humanos como causa de los dos últimos accidentes del V-22, afortunadamente sin víctimas: https://www.airandspaceforces.com/crew-errors-two-osprey-mishaps-one-week/
Los dos informes:
https://www.airandspaceforces.com/app/uploads/2024/08/22-Aug-23-AFSOC-CV-22B-MELROSE-RANGE-NM-AIB-REPORT.pdf