Aircraft data recorder box

摘要: The invention relates to a mechanical and thermal protection device. This device comprises an inner box (3, 4) which contains the elements be protected, outer (1, 2) placed around is resistant impacts and, in space between these two boxes, filler (9) of reservoir material constituting solid imbued with strength, containing water can freed under action heat comprising multiple cavities are sufficient avoid expansion effect cold, this being surrounded by (7) stable insulant, fillers separated layer (5, 6) reflect part flux passing through insulant. applies particular data recorders for flight conditions aircraft.