- Author
-
Hill, R.
- Title
- Evaluation of a Halon 1301 System for Aircraft Internal Protection From a Postcrash External Fuel Fire. Final Report. September 1975-March 1976.
- Coporate
- Federal Aviation Admin., Atlantic City, NJ
- Sponsor
- Federal Aviation Admin., Washington, DC
- Report
-
FAA/RD-76/218; FAA-NA-76-42,
March 1977,
28 p.
- Distribution
- Available from National Technical Information Service
- Contract
- 181-521-100
- Keywords
-
aircraft fires
|
fire extinguishing agents
|
aircraft compartments
|
commercial aircraft
|
smoke
|
carbon monoxide
|
oxygen
|
hydrogen fluorides
|
gas analysis
|
penetration
|
barriers
|
halon 1301
|
hydrogen bromide
|
egress
- Identifiers
- fire extinguishing agents
- Abstract
- The use of a Halon 1301 fire-suppression system was evaluated in regard to increasing occupant escape time during a ground crash situation with an external fire adjacent to a cabin opening. The results indicated that the length of protection from flame penetration through an opening was dependent upon external wind conditions. Flame penetration was controlled for up to 3.5 minutes with zero wind, but with a wind of as little as 2 miles per hour, the time was reduced to less than 15 seconds. High HF levels were rapidly reached inside the cabin, with concentrations ranging from 60 parts per million, with no wind, to well over 300 parts per million with 2-mi/h wind conditions. Test results also indicated that the use of a curtain to compartmentize the cabin could slow the spread of HF (15 to 20 seconds), but it does not lower the levels reached. compartmentize the cabin