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FIREPROOF AND FIRE RESISTANT MATERIALS

FIREPROOF AND FIRE RESISTANT MATERIALS. Federal Aviation Administration Project Manager: J. Reinhardt William J. Hughes Technical Center Airport and Aircraft Safety Research and Development Division Atlantic City International Airport, NJ. PURPOSE.

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FIREPROOF AND FIRE RESISTANT MATERIALS

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  1. FIREPROOF AND FIRE RESISTANT MATERIALS Federal Aviation Administration Project Manager: J. Reinhardt William J. Hughes Technical Center Airport and Aircraft Safety Research and Development Division Atlantic City International Airport, NJ

  2. PURPOSE • An ARAC Subcommittee is looking at revising AC25-135 (Powerplant Installation and Propulsion System Component Fire Protection Test Methods, Standards, and Criteria) • Develop a means to comply with the AC in order to evaluate various test specimens to determine whether they may be classified as: • Fireproof • Fire Resistant • Determine the feasibility of the testing methods performed.

  3. Current Proposed Procedure • CALIBRATION OF THERMOCOUPLES • Preheat Burner for 2 minutes. • Place Flame on Thermocouples for 90 seconds. • All Thermocouples must read 2000°F +/- 150°F .

  4. Current Proposed Procedure • CALIBRATION OF CALORIMETERS • Preheat Burner for 2 minutes. • Place Flame on Calorimeters for 90 seconds. • All Calorimeters must read above 10 BTU/(ft²·sec ) .

  5. Current Proposed Procedure • BURNER TEST • Preheat Flame for 2 minutes. • Place Flame for 16 minutes on the various test specimens: • 4140 Steel (reference material) • 15-5 PH Steel • Titanium 6A1-4V • Inconel 718 • Aluminum 7075 • Record time temperature data at the 0% , 25%, 50%, 75%, and 100% positions of the diameter. • Determine the loss of Ultimate Strength at the 5 minute and 15 minute intervals.

  6. Status • TESTING • Three out of the five material selected have been tested according to the prescribed procedure (4130 Steel, 15-5 PH Steel, and Titanium 6A1-4V) . • Available test data is currently been analyzed (reference material) • PROCEDURE • ARAC Subgroup is currently looking at the data to determine if a test protocol change is required.

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