F/FB-111 Ejection Experience (1967-1980). Part 1. Evaluation and Recommendations
AIR FORCE AEROSPACE MEDICAL RESEARCH LAB WRIGHT-PATTERSON AFB OH
Pagination or Media Count:
A review of the accident investigation reports of all non-fatal FFB- 111 ejections which occurred from 19 October 1967 to 26 March 1980 was conducted. The available spinal radiographs of the ejectees were also reviewed. The overall vertebral fracture rate among survived ejectees in a properly functioning module was found to be 29.5 23 of 78. There was no correlation of these fractures with negative inertia reel strap angles. Five radiologic and orthopedic consultants did not agree on the specific mechanism of vertebral fracture in the involved crewmembers. A significant reduction in the vertebral fracture rate appears achievable only by decreasing the acceleration stresses imposed on the crewmembers during landing impact.
- Stress Physiology