4 nautical miles = 8000 yards, if I remember correctly, so yes. That's VERY long range, and it's unlikely they could spot you. However, depending on the year, they might have radar...
__________________
We, the unwilling, led by the unknowing, are doing the impossible for the ungrateful. We have done so much, for so long, with so little, that we are now qualified to do anything with nothing.
|