LukeFF,
Another way to think about the range selector (I know I'm pressing the point)
.
To get a range of 40k you'd set the range sector to 80k, then zoom the sweep in to match the range scale. SH4 didn't give us a sweep selector, so, I think we really have to make do.
Besides, I'll buy any skipper a case of beer if they show me a radar contact beyond 40k with a 80k setting.
