Deborah Gatrell: 2020 has been a disorienting year

When the Army rolled out a new portable oxygen system for helicopter pilots, we went through Air Force high-altitude chamber training to prepare to fly at altitudes that would cause hypoxia (oxygen deprivation).The Air Force insisted we complete the full course of study, which included instruction on ejection seats. As helicopter pilots, we protested. To no avail. Training would be completed as prescribed.Simulating 18,000 feet in the high-altitude chamber was a fascinating experience. The goal