Office of Aerospace Medicine Technical Reports
FAA Office of Aerospace Medicine
Civil Aerospace Medical Institute
Report No: DOT/FAA/AM-70/19
Title and Subtitle: Evacuation tests from an SST mockup
Report Date: December 1970
Authors: Garner JD, Blethrow JG
Abstract: A comparative study of passenger flow rates through Type I and Type A aircraft door exits was made with two 280-passenger groups from the full-scale Lockheed Supersonic Transport mock-up, mounted in a belly-landing attitude.
The first load of 280 passengers and 9 crew members evacuated the mock-up through the right side containing four minimum-size Type I and three minimum-size Type III exits in 70.7 seconds. A second load of 280 passengers evacuated the left side of the mock-up containing three minimum-size Type A exits in 47.4 seconds. Each passenger group reloaded and performed another evacuation for the effect on flow rates of a 12-inch increase in height of a Type I exit, and the effect of passenger flow rates through the forward and aft Type A exits from a single aisle configuration.
Effects of step-down distances outside the fuselage and influences of one and two lines to double Type A doors during escape were evaluated. Cabin crew assist spaces at double doors were under study to establish guidelines for requirements involving crew interference within passageways to the doors. An analysis of passenger intelligibility of crew commands revealed a lack of comprehension of verbal instructions. These and other influencing factors are described.
Key Words: Egress, Evacuation, Supersonic aircraft, Jet transport aircraft, Flight crews, Human factors engineering, Survival
No. of Pages: 28
Civil Aerospace Medical Institute
Report No: DOT/FAA/AM-70/19
Title and Subtitle: Evacuation tests from an SST mockup
Report Date: December 1970
Authors: Garner JD, Blethrow JG
Abstract: A comparative study of passenger flow rates through Type I and Type A aircraft door exits was made with two 280-passenger groups from the full-scale Lockheed Supersonic Transport mock-up, mounted in a belly-landing attitude.
The first load of 280 passengers and 9 crew members evacuated the mock-up through the right side containing four minimum-size Type I and three minimum-size Type III exits in 70.7 seconds. A second load of 280 passengers evacuated the left side of the mock-up containing three minimum-size Type A exits in 47.4 seconds. Each passenger group reloaded and performed another evacuation for the effect on flow rates of a 12-inch increase in height of a Type I exit, and the effect of passenger flow rates through the forward and aft Type A exits from a single aisle configuration.
Effects of step-down distances outside the fuselage and influences of one and two lines to double Type A doors during escape were evaluated. Cabin crew assist spaces at double doors were under study to establish guidelines for requirements involving crew interference within passageways to the doors. An analysis of passenger intelligibility of crew commands revealed a lack of comprehension of verbal instructions. These and other influencing factors are described.
Key Words: Egress, Evacuation, Supersonic aircraft, Jet transport aircraft, Flight crews, Human factors engineering, Survival
No. of Pages: 28
Last updated: Friday, June 1, 2012