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ARFF Symposium ALPA - Fire Protection Design Aspects - BCECS2 - Ref. WB26PR0712180 - Issue 2

Differences Between Passenger and Cargo Aircraft Configurations

Fire Protection Design Aspects

ARFF Symposium ALPA, Herndon 13th-14th Nov. 2007

Presented by

Christian SchmidFire Protection Systems

November 2007ARFF Symposium ALPA - Fire Protection Design Aspects - BCECS2 - Ref. WB26PR0712180 - Issue 2 ©AI

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Outline

• Fire ProtectionMeans of fire protectionFreighter certification requirementsCargo compartment classification (Class C / E)

– Detection, extinguishing, smoke penetration• Cargo Aircraft

Exterior doors and windowsZones; occupied area and cargo compartments

• Airbus FreightersA300 and A310

– Loading configuration cross sections– Main Deck access– Overall dimensions


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Introduction – Fire Protection

Why fire protection?

Maximize safety to aircraft, occupants, and goodsin flight,… and on ground

and how…


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Fire Protection

Detection

Extingishing

Materials

Procedures


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Fire Protection – Freighter Certification

• Currently flying Airbus freighters are certified underFAR Part 25 as Supplementary Type Certification (STC)

• Smoke/Fire detection inLavatory according 25.854Cargo compartments, main and lower deck according 25.858

– Dual loop detection mode, zonal capability on main deck

• Fire Extinguishing SystemLower deck cargo built in system as per 25.851 / 25.857

• Cargo compartment classification as per 25.857Lower deck Class CMain deck Class E


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Cargo Compartment Classification

• Class CFire/smoke detectors throughout compartmentCargo compartment lining / ceiling

– Flame Penetration Resistance (5 minutes @ 927°C; heat flux 90kw/m2) Means to isolate cargo compartment from occupied areas

– Smoke Penetration test (min 15 minutes; 18 inch guideline)Built in fire extinguishing system

– Sufficient concentration for safe landing + 15min

• Class EFire/smoke detectors throughout compartmentCargo compartment design

– Materials self-extinguishing• burn length max 15cm; material flame time after flame removal 15s

– Essential systems protection to ensure safe flight and landingMeans to isolate cargo compartment from occupied areas

– Smoke Penetration test (min 15 minutes; 18 inch guideline)Fire suppression by “FL200” procedure

– fire suppression via oxygen depletion


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Cargo Compartment Classification

MD Class C CompartmentA310 Combi

MD Class E CompartmentA310 Freighter


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Cargo Aircraft Exterior

• Externally, same overall dimensions as paxcounterpart

• Windows along main deckRemoved and plugged

– Except for visual inspection• forward section for engines• center section for wings

• Doors / hatchesBaseline doors 1L and 1R retainedLower deck cargo doors retainedRemaining doors bolted shut

– No accessibilityMain deck cargo door on LH side


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Occupied Zones

• Courier area in door 1 areaTypically seating 2-6 couriers/crew with quick donning O2masksSegregation from cargo by crash net/smoke curtain or rigid wall


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Cargo Zones

• Lower deck cargo compartments (unchanged from pax)• Cargo area on main deck


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Cross sections / Loading Configurations


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Main Deck Cargo Access

could look like this or more likely …Through the main cargo door…


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Main Deck Cargo Access

Through the smoke curtain from courier areazipper on LH and RH side once inside…


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Airbus A300 Freighter

• Production or passenger to freighter conversion


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Airbus A310 Freighter

• Passenger to freighter conversion


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Key Message

• Fire Safety has top priority

• Fire Protection’s main elementsDetectionExtinguishingMaterialsProcedures

• Certification requirements

• Main deck accessibility


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