Jim Tulloch

Chief Engineer, Specialty Seating Discipline, UTC Aerospace Systems

Recent Posts

How to protect aircrew when their helmets instantly become 70 pounds heavier

Posted by Jim Tulloch on May 14, 2018 9:55:00 AM

As you read this sentence, you are experiencing life at 1 G—gravity is pulling down on you at 32 feet per second squared. If you happen to be flying some aerobatics and executing a 3 G barrel roll right now, things are different. At 3 Gs, you’re feeling triple the pull on every pound of your body and whatever is attached to it. That means a 150-pound airman with 50 pounds of flight gear would experience 600 pounds of force. During an ejection, you would experience at least 8 G’s of force on your body. An additional ejection hazard is wind blast -- the magnitude of which approaches that of a Category 5 hurricane. 

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Topics: Performance

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