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| Title: | Aircraft Fire Extinguishment Part II - The Effect of Air Flow on Extinguishing Requirements of a Jet Power-Plant Fire Zone | ||||
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| Author: | Charles A. Hughes | ||||
| Abstract: | Test fires were concluded in the fire zone of a jet powerplant in order to determine the minimum amounts of fire extinguishing agents required for extinguishment under different conditions of air flow through the zone. The tests were conducted with four extinguishing agents which were discharged through conventional and experimental systems; first, with the zone in its original condition, and later, with a lining in the lower portion of the fire zone to provide a smoother flow of air. Results indicate that the rate of airflow influenced the amount of extinguishing agent required for extinguishing of the test fires. With the lining installed, the quantity of fire extinguishing agent required was approximately a linear function of the rate of airflow. Without the lining and at the lower rates of airflow, burning fuel fell to the bottom of the nacelle and collected between the structural members or ribs. This resulted in increased extinguishing agent requirements. The results also indicate the effectiveness of each of the four extinguishing agents tested and provide a comparison between the two systems. |
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| Report: | Tech. Dev. Report 205 | Pages: | 11 | Size: | 818 KB |
| Title: | Aircraft Fire Extinguishment Part III - AN Investigation For Evaluating Extinguishing Systems | ||||
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| Author: | James D. New, Charles M. Middlesworth | ||||
| Abstract: | A gas analyzer for evaluating aircraft fire-extinguishing systems was calibrated for use with carbon dioxide, methyl bromide and bromochloromethane. Extensive application of the analyzer in evaluating the carbon dioxide system of the XB-45 power plant provided it to be of practical value. Operation of the instrumentation flight proved satisfactory. | ||||
| Report: | FSR-0069 | Pages: | 16 | Size: | 1.30 MB |
| Title: | The Effect Of Airflow On Extinguishing Requirements Of A Jet Power-Plant Fire Zone | ||||
|---|---|---|---|---|---|
| Author: | Charles A. Hughes | ||||
| Abstract: | Test fires were concluded in the fire zone of a jet powerplant in order to determine the minimum amounts of fire extinguishing agents required for extinguishment under different conditions of air flow through the zone. The tests were conducted with four extinguishing agents which were discharged through conventional and experimental systems; first, with the zone in its original condition, and later, with a lining in the lower portion of the fire zone to provide a smoother flow of air. Results indicate that the rate of airflow influenced the amount of extinguishing agent required for extinguishing of the test fires. With the lining installed, the quantity of fire extinguishing agent required was approximately a linear function of the rate of airflow. Without the lining and at the lower rates of airflow, burning fuel fell to the bottom of the nacelle and collected between the structural members or ribs. This resulted in increased extinguishing agent requirements. The results also indicate the effectiveness of each of the four extinguishing agents tested and provide a comparison between the two systems. |
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| Report: | FSR-0004 | Pages: | 11 | Size: | 817 KB |
| Title: | Combustibility Tests Of 47 ASTM Material Samples | ||||
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| Author: | Nicholas P. Setchkin | ||||
| Abstract: | Tests of 47 specimens of solid materials as requested by the advisory group to Subcommittee V, ASTM Committee E-5 on Fire Tests of Materials and Constructions were made at the National Bureau of Standards for the purpose of evaluating a technique for determining the combustibility classifications of solid materials. Results of these tests indicate that by using the technique proposed for adoption by ASTM, the specimens, except for a few, could be readily classified as combustible or incombustible. The results for those few were not conclusive ands seem to require further definition of the procedure and method of classification. | ||||
| Report: | FSR-0148 | Pages: | 15 | Size: | 0.98 MB |
| Title: | Determination Of Ignition Characteristics Of Hydraulic Fluids - Part II - Flammability Reference Scale | ||||
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| Author: | J.J. Gassmann | ||||
| Abstract: | A need exists for a means to determine the flammability�s of fluids by some simple test method that can be readily conducted in any laboratory. Methods such as determination of the flash point, fire point, spontaneous ignition temperature and the spray flammability limit, are inconsistent and do not represent a true evaluation of the flammability�s of the fluids. Also, other simpler methods such as the various wick tests, fail to provide a true evaluation of flammability. The flame-length scale was the first step toward the development of a useable method in that it would clearly discriminate between the flammable and nonflammable fluids. The percent nonflammable scale was developed as a useable scale for determining the relative flam abilities of hydraulic fluids and lubricating oils. The latter scale covers a range of flammability�s from fluids more flammable than aviation gasoline down to a level which is considered nonflammable as determined by full-scale flight conditions and simulated crash conditions. | ||||
| Report: | FSR-0175 | Pages: | 12 | Size: | 1.11 MB |
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