Abstract: In order to explore the combustion characteristics of the side panel material of civil aircraft cargo hold, cone calorimeter was used to study its combustion characteristics under fire environments, and two evaluation indexes were used to evaluate the fire hazard of the material. The experimental results show that the heat release rate curve of the material has only one growth peak. When the heat radiation intensity increases from 20 kW/m2 to 50 kW/m2, the heat release rate peak of the material combustion increases from 98.64 kW/m2 to 201.46 kW/m2, and the mass loss increases with the increase of radiation intensity. CO and CO2 production increased with the increase of radiation intensity during combustion; through the combustion ignition model, the theoretical critical heat flux of the sidewall material is 10.20 kW/m2; the change of thermal radiation value has a great influence on the fire risk index of aircraft cargo compartment sidewall plate.

Key words: aircraft cargo panel, glass fiber/phenolic resin, combustion characteristics, heat release rate