M.T. Sung

The association constraints and relative chemical shifts of the complexes determined by different protons on the in doles in the presence of an excess.

K.D. Robinson

This study was undertaken to investigate the use of elastomer coatings, curtains and other more novel materials as containment methods to eliminate or control post-crash spill from aircraft integral fuel tanks.

Through use of comparative screening tests, elastomeric liner, curtain and multiplayer liner, and contractor selected boot type liner concepts were selected for evaluation in aircraft wing sections.

Results of aircraft wing selection drop tests show that little improvement was realized with the various systems installed. The structural damage to the wing sections was of such magnitude as to preclude success of any of the systems evaluated.

T.G. Lee

Results are reported of a laboratory (round-robin) evaluation of the smoke density chamber method for measuring the fire. A statistical analysis of the results from 10 material-condition combinations and 18 laboratories is presented. For the materials tested, the median co-efficient of variation of reproducibility was a 7.2% under non-flaming exposure conditions and 13% under flaming exposure conditions. A discussion of errors and recommendations for improved procedures based on user experience is given. A tentative test method description is included as an appendix.

Paul M. Rich, Warren G. Cook, Richard L. Sulzer, Peter R. Hill

A series of six experiments was conducted that have application to the development of Pilot Warning Instruments (PWI). The experiments were concerned with the effect of warning rates on pilot performance, pilot response to imminent collision threats, the evaluation of scanning patterns, the value of warning-only, the effect of relative motion on pilot performance, and the effect of PWI display sector size. The results of these experiments offer a variety of useful data in the area of visual collision avoidance.

Gerald R. Slusher

A method was developed using the Society of Automotive Engineers (SAE) smoke numbers for calculating the exhaust smoke transmission for turbine engines, number of plume paths, and viewing angles. Criteria were developed relating the SAE smoke number to engine airflow and thus to engine size for conditions of visible and invisible smoke. Transmission of multiple plumes was calculated and presented.