Accession Number : AD0713914

Title :   Characteristics of Fire in Large Cargo Aircraft (Phase II).

Descriptive Note : Final rept. 1967-1970,

Corporate Author : NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY N J

Personal Author(s) : Gassmann,Julius J.

Report Date : SEP 1970

Pagination or Media Count : 20

Abstract : The degree to which fire in large cargo compartments may be suppressed by shutoff of ventilation was investigated. Results of the tests indicated that this action alone would not protect the fuselage of large cargo aircraft from severe fire damage. Peak air temperatures occurring during fire increased significantly with increasing compartment size from 1,000 to 2,000 cubic feet and were similar with further increase in size to 5,000 cubic feet. Temperatures in the order of 1,800F were reached in these larger compartments. An increase in percent loading resulted in a more severe fire condition for compartment volumes of all the sizes used in this program. A single cargo fire test indicated the use of bromotrifluoromethane at the time of detection and ventilation shutoff may be an effective means of greatly reducing peak temperatures and pressures and providing a longer control time. (Author)

Descriptors :   (*AIRCRAFT FIRES, *TRANSPORT AIRCRAFT), FIRE ALARM SYSTEMS, AIRCRAFT CABINS, FIRE SAFETY, VENTILATION, TEMPERATURE

Subject Categories : Transport Aircraft
      Safety Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE