Ground Tests of Aircraft Flight Deck Smoke Penetration Resistance

摘要

This report documents a series of tests to determine the amount of positive pressure differential between the flight deck and surrounding areas necessary to prevent smoke from penetrating into the flight deck. The testing also explored methods to demonstrate the effectiveness of those ventilation conditions. The tests were conducted on the ground in a Boeing 727-100 freighter and a 747SP aircraft. A thin plastic sheet covering the flight deck door opening and a theatrical smoke generator were successfully used to demonstrate a positive pressure differential that was effective at preventing the penetration of theatrical smoke into the flight deck of the B-727. The 747SP ventilation system was not capable of preventing smoke penetration during these ground tests.