Does the periscope detection range (with full extension) alter at short-ranges when submerged? Or with the type of periscope raised? Reason I ask is that there's been a fairly strong consensus thus far that the OP at very short range - under 300m or thereabouts - may get you detected.. or is your test simply that the degree of periscope extension does not affect the basic detection range when surfaced?
Also, we've all been in the situation where one is out of detection-range for an unalerted convoy, someone else gets spotted and you get caught in the searchlights with your proverbial knickers around your ankles! That suggests there's two detection ranges, one unalerted, and one alerted. I'd be interested to know if the periscope extension causes the detection range not to change in both cases?
Like you I'm interested to know how these ranges (may) change with behaviours, although perhaps a little mystery and "mythology" is not a bad thing!
Incidentally, as a rough guide, if you set say 25% fog, I've been working on the assumption - quite untested mind you - that you then multiply the normal detection 1800m range by (100%-25%) therefore .75 giving 1350m. This would suggest that by far the greatest benefit from fog would be in daylight?
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