Nonelectronic Countermeasures for Infrared Guided Missiles Part 3 - Use of Heat Decoys as Countermeasures
NAVAL RESEARCH LAB WASHINGTON DC
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An analysis of the properties of the ideal heat decoy showed that 1. The decoy should be dispersed in the air as a shower of hot particles by projection with a suitable fire-arm. 2. Among the possible heat-producing reactions, combustion reactions are the most suitable and, in particular, the combustion of carbon offers the most promise. 3. The duration of the decoy should be about 30 seconds, to be controlled by adjusting the rate of reaction and particle size of the decoy substance. The preferred decoy should comprise a reaction mixture which can be ignited after dispensing. Some preliminary experiments are described and previous work reviewed. From the analysis it is concluded that future experimental work should be concentrated on the type of heat decoy comprising a canister filled with carbon granules impregnated with an oxidizing agent and ignited either by a burster charge or, if necessary, by some spontaneously inflammable material coating the granules. The number of canisters for each application of the countermeasure depends on the size of the ship to be protected.
- Guided Missiles