jgnfld wrote:Graydon wrote:...
How much daylight do you have? It gets colder when it gets dark, and moving in the dark is more dangerous
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For movements, night is not a terrible obstacle to ski troops, and I assume snowshoe troops as well. In the farther northern regions in winter, the hi pressure systems lead to crystal clear air and even starlight provides enough illumination for going along a track in the open.
Under which conditions it is maximally cold. You can rip your lungs out exercising in weather like that; it's very cold and extremely dry.
If there is a half-to-full moon, it can be like daylight. Certainly the Finns did a lot of night movements in the Winter War. Certainly I never had any trouble along any sort along an established trail unlighted when I lived in Minnesota and did a lot of cross country skiing. If you only operated during the day, you only operate for hours at anything over 45N. In Finland you would hardly be able to operate at all!
"The Finns can do it" is not a good baseline set of assumptions for anybody else! (Look up what you have to do to get a Mannerheim Cross sometime.) And even the Finns did a lot of things in the Winter War because they had to, not because anybody would say it was a good idea.
And yes, of course night movement is possible. It's not as safe, and you're trying to move an army corps in a way that preserves strategic surprise; you're very likely avoiding settled regions with sufficient roads. (All this emphasis on snowshoes and sleds to me implies cross-country mobility.) And it's only "like daylight" until you have to judge stuff like "how deep is this hole?" and "does that distant bit of darkness under those trees contain movement?" or even "how far away is Two Platoon?"
Ski troops were considered to be more rather than less mobile than the same units in the summer as rivers and lakes become fast supply corridors and cross country skiing is inherently faster than slogging. Snowshoeing is slower, of course. I have seen my son's winter infantry equipment. The Cdn infantry uses snowshoes made out of magnesium which, of course, can be used for several other purposes! Maybe Merlin should suggest something along those lines!!!
If you've got a reliably frozen river to follow, absolutely. It's a flat surface, you more or less cannot get lost, and you don't have many obstacles to contend with because there aren't many obstacles in a river. If you're going cross-country, especially cross-country in wooded country, which is sounds like BGV's force is doing, it's different. Much more concern about route and it's not flat. Makes a big difference.
While I have fond memories of those robust and reliable snowshoes, magnesium is one of those electrical-refining-only metals, like aluminium and titanium. So not just yet.