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Evacuation Slide
Test Method: Comparison Test Results
Tim Marker (for Dung Do) Fire Safety Branch FAA Wm. J. Hughes Technical Center
Atlantic City International Airport, NJ 08405
International Aircraft Materials Fire Test Working Group
Meeting March 6, 2018
Evacuation Slide
Evacuation Slide Test
Results of RR6 and Updated
AC Power Controller
Activity
Evacuation Slide Round Robin 6:
Tests were conducted on typical slide materials to ensure the Revised Test Method is functioning properly
• 2 different heaters were used for the Tests
H1 = Part # 38000 and H2 = Part # 40400
• 3 materials were tested; 3 tests of each material
Heater part # 68086038000,
1.5-inch coil-to-face distance.
Heater part # 68086040400,
1.75-inch coil-to-face distance.
Heaters Used in Testing
The Heater coil depth is adjustable
Open the screw on the heater, and adjust the head cover until the distance of the coil from the face of the heater is 1.5” if using the heater with (Part # 68086038000) and 1.75” if using heater with (Part # 68086040400)
Head Cover
Heater
Solid Coil
Screw
Adjusting
0
10
20
30
40
50
60
FAA Heater 1 FAA Heater 1 FAA Heater 1 FAA Heater2 FAA Heater2 FAA Heater2
1 2 3 4 5 6
Heat Flux = 1.5 Btu/ ft2sec = 428 watts
Tim
e (
Seco
nd
s)
Test Results of the Mustard / Mustard slide material to compare two different heaters
Test Results of the Blue / Gray slide material to compare two different heaters
3.3
3.4
3.5
3.6
3.7
3.8
3.9
4
Heater 1 Heater 1 Heater 1 Heater 2 Heater 2 Heater 2
1 2 3 4 5 6
Pressure @ t = 0 t = 90 (S) t = 180 (S) t = 240 (S) t= 300 (S)
Pre
ssu
re (
Psi
)
2.5
2.6
2.7
2.8
2.9
3
3.1
3.2
3.3
3.4
3.5
Heater 1 Heater 1 Heater 1 Heater 2 Heater 2 Heater 2
1 2 3 4 5 6
Pressure @ t = 0 t = 90 (S) t = 180 (S) t = 240 (S) t= 300 (S)
Pre
ssu
re (
Psi
)
Test Results of the Ivory / Gray slide material to compare two different heaters
Conclusions
Blue / Gray Material and Ivory / Gray Material passed the tests with both heaters (Gray side faced the radiant heat).
Mustard / Mustard Material Failed the tests with both heaters.
The slide material test result correlation determined that both of the heaters are acceptable for use in the Revised Test Method, provided the coil distances are accurately adjusted.
Recent Activities
Preparation for additional testing using the new AC Power Controller (Keysight AC 6802A) to replace the Powerstat Voltage Regulator, which was used to control the input power of the heaters:
• The new AC Power Controller will provide feedback control of the power input to the heater. When the power input is set to the required wattage, it will be continuously controlled throughout the duration of the test.
• Time will be saved because the power input to the heater will be stabilized and won’t be need to be monitored or adjusted. Simply set it and conduct the test. (no need for Operator to check the power input during the test).
• Tests on additional slide materials will be conducted to evaluate the new AC Power Controller function.
AC Voltage Controllers for The Power Input of Heaters
Powerstat Voltage Regulator
NEW AC Power Controller (Keysight 6802A) $4871
New AC Power Controller was installed for additional Evacuation Slide Tests
AC 8602A Power Controller
Radiant Heater
Monitor
Future Work
Tests will be conducted on typical slide materials using the New AC Power Controller (Keysight AC 6802A):
• Calibration tests will be conducted to evaluate the stabilization of the power input to the heater
• 2 different materials will be tested
• 3 tests on each material
The slide material test results will be presented at the next meeting