- Author
-
Hughes, C. A.
|
Middlesworth, C. M.
- Title
- Aircraft Fire Extinguishment. Part 4. Evaluation of Bromochloromethane Fire Extinguishing Systems for the XB-45 Airplane. Technical Development Report 240.
- Coporate
- Civil Aeronautics Administration, Indianapolis, IN
- Report
-
CAA TDR 240,
June 1954,
10 p.
- Keywords
-
aircraft fires
|
fire extinguishment
|
evaluation
|
halon 1011
|
chlorobromomethane
|
fire extinguishing agents
|
fire tests
|
nacelle fires
- Identifiers
- Walter Kidde and Company, Inc.; U.S. Air Force Specification MIL-E-5352; XB-45 airplane power plant
- Abstract
- A bromochloromethane fire extinguishing system, designed by Walter Kidde and Company, Inc., in accordance with USAF Specification MIL-E-5352, was fabricated and installed in an XB-45 airplane power plant. Fire extinguishing tests were conducted under simulated flight fire emergency conditions to check the validty of certain phases of the specification and of certain design practices. Quantity requirements for extinguishing fires in each nacelle compartment were determined for bromochloromethane and dibromodifluoromethane. Present design practices were found to result in a system which meets the requirements of MIL-E-5352 specification for the duration of agent discharge and for agent distribution. The quantity of agent required by the specification (48.82 pounds) was found to be inadequate for extinguishing all nacelle fires. The minimum quantity of agent for extinguishing all fires was determined by test to be 66 pounds. A system designed for bromochloromethane proved satisfactory for use with dibromodifluoromethane. On the basis of weight, the latter agent was somewhat more effective.