Accession Number:

ADA370832

Title:

Study of the Spinal Preloading Piston for the CKU-5/A Rocket Catapult

Descriptive Note:

Final rept. May 98-Feb 99

Corporate Author:

LME INC ANNAPOLIS MD

Personal Author(s):

Report Date:

1999-02-01

Pagination or Media Count:

49.0

Abstract:

This Small Business Innovative Research SBIR Phase I effort investigated the feasibility of inserting spinal preloading technology into the current Advanced Concept Ejection Seat ACES II. Spinal preloading may be an effective means of reducing spinal compression during the catapult phase of an emergency aircraft ejection and result in a reduction in major injuries and fatalities for the expanded aircrew population. The spinal preloading technology is based on the concept of applying a Dirac high level, short time duration impulse, then after the spine has reached its maximum compression level, applying an acceleration step function to maintain that compression level for the rest of the catapult stroke. The preliminary design is based on the addition of a short stroke Spinal Preloading Piston SPP between the Seat Adjustment Actuator Assembly SAAA and the CKU-5BA rocket catapult in the existing ACES II ejection seat. A Gaussian optimization computer program was used to optimize the performance of the CKU-5BA rocket catapult with the SPP. A SBIR Phase II effort was approved to continue the design, fabrication and testing of the SPP.

Subject Categories:

  • Terminal Flight Facilities
  • Anatomy and Physiology
  • Escape, Rescue and Survival

Distribution Statement:

APPROVED FOR PUBLIC RELEASE