Continued problems with hypoxia being reported within the USN, affecting pilots on deployment and on combat missions:
http://www.military.com/daily-news/2017 ... -isis.htmlThe USS George H. W. Bush and the USS Carl Vinson both deployed in January specially equipped with hyperbaric chambers, devices that measure cockpit air pressure, and even issued commerically-bought Garmin wristwatches to air crew that have altimeters and barometric sensors built into them. Even then, it has been reported that there has been at least two instances onboard the Bush where the hyperbaric chambers were used by aircrew having hypoxia symptoms; once in Feb where a Growler crew had an abnormality with the aircraft's environmental control system and managed a landing back onboard, and the second instance happened in April when a solo F/A-18 pilot became disoriented shortly after takeoff. Both instances fortunately occurred close to the carrier, allowing pilots to quickly conduct a landing and seek immediate treatment.