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I am just wondering...


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On 10/9/2021 at 4:35 PM, MikeyD said:

Someone here recently said during NATO maneuvers in the 70s(?), playing OPFOR they were often able to locate American positions at night from the smell of weed and the sound of beer cans being popped.

MIkeyD,

This means Spanish troops equipped with wine filled bota bags will have a tactical edge in not being detected, right? On. a more serious note, smell's a big deal in the field, which is why LRRPs in the Vietnam War, used nothing the natives didn't as far as soap and other things because otherwise it would be a dead giveaway to hostiles downwind. Have read that Japanese troops found Americans smelled like brass, because they ate meat and that, going the other way, the Japanese smelled like fish because of their diet. And only a couple of weeks ago, I read the Germans could easily smell Russian troops because of the pungent mahorka tobacco they smoked and that impregnated their clothing and, as we say in CBRN world, outgassed. But long before we ever get into detection by smell, would love to see detection affected by optical contrast, since it's a key aspect of target detection. Also, there's an IR phenomenon called thermal crossover in the morning and evening which background and object temperature become the same, rendering even whole bridges temporarily IR invisible. From what I've read, this is not a total deal breaker for modern systems, but was very much a big deal with earlier generation ones. Here's a discussion of an array of issues affecting military electro-optical systems. Too bad Dad's not still alive, for he was a Senior Systems Scientist at Hughes Electro-Optical & Data Systems Group. The Thermal Weapon Sight for CSW, IW, etc., was his baby, and he'd worked anything and everything in the E-O field, including the Shiva laser for nunclear fusion.

https://www.globalsecurity.org/intell/library/policy/army/fm/34-81-1/appf.htm

Regards,

John Kettler

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