Investigation of Materials for Seat Cushion and Parachute Support Spacer Development.
Abstract
The report describes cushion material research and development which culminated in a special foam that offers a significant breakthrough in its ability to provide increased long-duration seating comfort simultaneously with reduction in the probability of spinal injury attributable to amplification of the vertical accelerations produced in upward ejections and crash landings. Discovery of the new polyurethane material, designated as Frost XP-3, foam is reported along with a summary of its properties and a method of approximating them by impregnation of a commercially available reticulated foam with polymeric materials. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1971
- Accession Number
- AD0723302
Entities
People
- Ernest L. Stech
- G. Kenneth Russell