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Records 291 to 295 of 733
| Title: |
An analysis for Relating Visibility to Smoke Production and Ventilation |
| Author: |
Thor Eklund |
| Abstract: |
The concept of the perfect stirrer is applied to smoke production and removal in ventilated compartments. The analysis results in simple relationships between the logarithm of the light transmission and the characteristic time for an air change in the compartment. In well mixed enclosures, the analysis demonstrates that the ability to improve visibility through smoke clearance is affected directly by the exponential of the negative of time divided by time for an air change. |
| Report: |
DOT/FAA/CT-TN84/22 |
Pages: |
14 |
Size: |
558 KB |
| Title: |
Evaluation of an Improved Flame Resistant Aircraft Window System |
| Author: |
George B. Geyer, Charles H. Urban |
| Abstract: |
Information was obtained by conducting a series of representative fire modeling experiments of aircraft cabin window systems employing salvaged segments of a McDonnell Douglas DC-IO aircraft. Experiments were performed in which a thermally improved window system was installed adjacent to a standard window configuration and exposed to flame impingement from a Jp-4 fuel fire. The" results of test 1 indicated that the thermally improved DC-I0 window configuration, employing the stretched acrylic pressure pane and the new EX 112 fail-safe pane, provided an overall improvement in flame resistivity over the standard all acrylic window system of at least 79 seconds 0.3 minutes). During this experiment, the silicone rubber window gasket provided adequate thermal and mechanical stability toward preventing flame penetration into the cabin through the improved fail-safe (EX 112) window system for 225 seconds (3.75 minutes), which was the durat ion of fire exposure. The average failure time of the stretched acrylic and thermally improved (EX 112) fail-safe window panes in tests 2, 3, and 4 was 198 seconds (3.3 minutes) and 249 seconds (4.15 minutes), respectively, after fuel ignition. These data indicated that, on average, an improvement in fire resistivity of 51 seconds (0.85 minute) was obtained by the improved (EX 112) window configuration over the standard stretched acrylic window sys tem. Comparat ive tests performed with representative DC-I0 fuselage components employing the cabin interior honeycomb panel (test 3) and the aluminum panel (test 4) configurations, showed that the honeycomb panel provided a minimum inprovement in flame resistivity of 67 seconds over the aluminium interior panel. |
| Report: |
DOT/FAA/CT-83/10 |
Pages: |
63 |
Size: |
23.5 MB |
| Title: |
Decision Analysis Model for Passenger-Aircraft Fire Safety with Application to Fire-Blocking of Seats |
| Author: |
John R. Hall, Jr., S. Wayne Stiefel |
| Abstract: |
This report develops a generic model for analysis of the costs and benefits of fire-risk reducing strategies related to passenger airplanes. The model calculates incremental costs for installing and operarting these options. It also caluclates estimated lives saved and property damage avoided, and it provides rules for combining costs and benefits into a single measure of attractiveness for an alternative. This model is then applied to the strategy of fire-blocking seats on passenger airlines, either on U.S. airlines or on all world airlines. |
| Report: |
DOT/FAA/CT-84/8 |
Pages: |
113 |
Size: |
20.3 MB |
| Title: |
Exposure of Nacelle Panels of the Re-Engined KC-135R Aircraft to a Standard Burner Flame |
| Author: |
Paul N. Boris, James H. Dailey, Anthony M. Spezio |
| Abstract: |
One I5-minute fireproof test us ing a standard Federal Aviat ion Adminis trat ion (FAA) fire test burner or a modification thereof, was conducted on each of four panels representative of portions of the re-engined KC-13SR nacelle installation. Included were panels representative of those used for the fan cowl, fan duct, and firewall. Of these test samples, the panel representative of the firewall sustained complete flame penetration; those representative of fan cowl panels sustained penetration by the test flame into the aluminum honeycomb sub layer; and that t'epresentative of the fan duct panel sustained no visible exterior damage other than warping. |
| Report: |
DOT/FAA/CT-TN84/12 |
Pages: |
29 |
Size: |
31.1 MB |
| Title: |
Aircrarft Seat Fire Blocking Layers: Efectivene |
| Author: |
R.G. Hill, L.J. Brown, G.R. Johnson, C. Sarkos |
| Abstract: |
Full-scale tests were conducted utilizing the C133 test article located in the Full-Scale Fire Test Facility to determine the benefits that could be derived from fire blocking aircraft passenger seats. Various fire scenarios were selected and
tests conducted to evaluate the effectiveness of various blocking materials. The scenarios selected fell into three broad classifications, (1) post-crash, (2) inflight, and (3) ramp type fires. Test results indicate that the use of a fire-blocking material could increase survivable evacuation time during a post-crash fire that enters a fuselage through a break in the cabin, by as much as 50 percent. Tests also indicate that in-flight and ramp type fires that could destroy the aircraft with present seating materials, could be controlled with the use of a fire-blocking material. |
| Report: |
DOT/FAA/CT-83/43 |
Pages: |
164 |
Size: |
23.2 MB |
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