Andrew J. Atkinson, Thor I. Eklund

An investigation ws conducted to determine the relative crash fire hazards of jet fuels under survivable crash conditions. Kerosene, JP-4, and mixtures of both were evaluated under various release modes (pool, drips, streams and sprays) and in the presence of possible ignition sources (electrical sparks, friction sparks. Open flames, and hot surfaces). Wind speed, wind air temperature and fuel temperatures were also varied. The results of this evaluation and the conclusions reached are discussed in the report.

John F. Marcy

Thus is the third time since the aviation seminar held in Dallas in 1964 that I have been honored by being asked again to speak before this distinguished gathering of Fire experts on some of the more recent activities of the FAA, in the field of aircraft fire protection conducted at its experimental center NAFEC located in Atlantic City.

Constatine Sarkos

To duplicate phenomena exhibited during exposure of a 28-foot titanium fuselage to a fuel-spill type of fire by using a small-scale laboratory test facility. To determin a sealant/insulation combination which would not flame or produce hazardous decomposition products upon heatiing, and thus enable maximum passenger protection to be derived from the fire resistance of the titanium and the heat resistance of the insulation.

C.H. Yuill

ASTM Committee E-5 Fire Tests of Materials and Construction has been increasingly concerned with the life hazard of smoke and noxious gases generated during fires in buildings. A task group within Subcommittee IV on Fire tests of Acoustical and Similar Finishes has reviewed the situation with respect to smoke and has found that the exact nature of the hazard has not been well defined. As a result, efforts to control the use of materials alleged to produce efforts to control the use of materials alleged to produce objectionable amounts of smoke when exposed to fire situations lack a desirable degree of uniformity. The nature of smoke, it development in building fires, efforts toward control through regulations and building design, existing and proposed test methods for smoke measurement, and test criteria are discussed in this paper.

John F. Marcy

A study was made of the burning characteristics of airplane interior materials ignited inside a 640 cubic foot cabin mockup enclosure. Test conditions were varied to investigate the effects of a number of factors on the ignition and propagation of flames within enclosures; namely, (1) flammability ratings of the materials as obtained from standard laboratory tests, (2) intensity, duration and type of the ignition source whether flaming or incandescent, (3) ventilation rate as provided by different size openings into the cabin enclosure, (4) partitioning of the cabin space by use of a fire barrier curtain and (5) discharge of bromotrifloromethane (CF3Br) into the cabin atmosphere, both at different rates and total quantities of application before and during a fire occurrence. Comparative tests conducted on flame-retardant (FR) urethane and neoprene foams showed that the flash fire hazard prevalent with the use of regular foam could be greatly reduced by replacement with these two self-extinguishing foams. A high rate discharge system employing CF2Br (1301) was shown to be effective in rapidly extinguishing the flame of a foam fire. A curtain divider placed across the ceiling was shown to be useful as a fire barrier to arrest flame propagation. Roof venting of the mockup at a location away from the fire was relatively ineffective in preventing rapid buildup of smoke and flame from a flash fire involving urethane foam.