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P-13 Dual Agent Application.
| 题名： | P-13 Dual Agent Application. |
| 作者： | Hamre,John;McDonald,Lyle; |
| 关键词： | Dispensers, Fire extinguishing agents, Fire fighting vehicles, Landing fields, Airports, Hoses, Dual mode, Nozzles, Dry materials, Chemicals, Potassium compounds, Bicarbonates, Halogenated hydrocarbons |
| 摘要： | The two separate hose reel assemblies on the AS 32/p-13 were replaced with a single electric rewind reel containing 100 feet of twinned one inch hose. Agent discharge piping was rerouted to opposite sides of the hose reel and the agents are discharged through a dual agent nozzle assembly capable of being operated easily by one man. The existing two ball valve type nozzles are replaced with a single dual agent nozzle configuration capable of discharging dry chemical and Halon 1211. A standard electric rewind twinned hose reel was installed with attention to wiring harness routes, power requirements and operation. The electrical requirements are within the present capability of the vehicle, and harness routing follows current vehicle specifications to prevent chaffing, weathering and other damage. The operating controls have been located to allow one man to energize the rewind mechanism and also guide the hose onto the reel. The actuation systems of both units are combined to facilitate a one-person operation (movement of one lever opens all valves). This actuation lever is located at the rear of the vehicle in the vicinity of the dual agent nozzle. A provision was incorporated into the system to clear agents from the hose after use. The dispensing system satisfies the flight and taxiing load requirements of MIL-A-8421. The modified components of the vehicle can be discharged independently and simultaneously from their respective nozzles to insure satisfactory operation and conformance to the flow requirements. |
| 总页数： | 45 |
| 报告类型： | 科技报告 |
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