FIELD: aerospace engineering; flight data recorder boxes (black boxes).
SUBSTANCE: proposed data recorder has metal case and two facilities forming first and second heat insulators, respectively. Novelty is that second facility forming insulator/heat absorber is made of material incorporating ceramic fibers and inorganic endothermic substance, solid-to-liquid phase transition occurring without water evaporation.
EFFECT: facilitated manufacture, reduced cost, enhanced reliability and safety in all situations.
11 cl, 3 dwg
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