- Author
-
Young, A. V.
- Title
- Fire Extinguishing Studies of the Northrup F-89 Powerplant. Technical Development Report 365.
- Coporate
- Civil Aeronautics Administration, Indianapolis, IN
- Report
-
CAA TDR 365,
October 1958,
26 p.
- Keywords
-
aircraft fires
|
extinguishing
|
jet aircraft
|
large scale fire tests
|
fire extinguishment
|
test equipment
|
fire tests
|
turbojet engines
- Identifiers
- high-rate-discahrge (HRD); in-flight turbojet power plant fires
- Abstract
- A study was made of the control of in-flight turbojet powerplant fires by conducting full-scale tests on the F-89 fire-extinguishing system. The early phases of this study showed that the F-89 fire-extinguishing system was ineffective in extinguishing fires of low, as well as high, intensity. Seven modifications of this system were tested in an effort to accomplish successful extinguishment using bromochloromethane in a perforated tubing system. Considerable improvement in extinguishment of fires was accomplished but not sufficient to warrant acceptance of the system. A high-rate-discharge system then was considered as a possible means of providing effective extinguishment. A high-rate-discharge system, consisting of a manifold and distribution lines, was developed which effectively extinguished all fires ignited inside the engine bay, including those of a size which consumed all oxygen in the cooling air. Dibromodifluoromethane was found more effective than bromochloromethane as the extinguishing agent.