From: USA Me-FL-DC-Guam-WS-NE-IL-?
It is extremely helpful to your ASW TFs and SC TFs to perform night search, particularly when defending your own waters. If you have pilots trained up, you'll get decent results - not always a big DL hit, but enough to know that "something" is there.
It may be counter-intuitive, but ships leave phosphorescent wakes (I don't know if that's sometimes or all the time), so presumably spotting them at night isn't as hard as trying to find a dark grey hull on a black surface in starlight or moonlight. I believe the bigger/faster the ship, the more visible the wake is, but I'd be surprised if the game was that granular.
Speaking of moonlight, I imagine higher moonlight means better results.
I imagine radar helps at night just as it helps during the day.
This is good to know! It sounds like the game might actually mirror real life. Surface search at night is very possible. Most dedicated maritime patrol aircraft have carried some form of search light , or had a flare dropping mechanism. Navies of this period practiced having patrol and float planes dropping flares behind enemy surface ships to "backlight" them. I seem to recall that the Japanese were particularly good at this.
And warm , tropical waters definitely encourage bio-luminance. I've seen many a ship (and a few would be drug smuggler) courtesy of it's properties. (Of course RADAR amd ESM helped get us in the right neighborhood ). In the pre-FLIR and low light TV days , as late as the 1970's it was standard practice to search with RADAR or do an "open-ocean" patrol , and then Illuminate a massive area with either a huge airborne light (such as the Leigh light) or flares.
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