[Galaga Galaxian]

Hey, been playing SH3 and GWX2.1/3.0 on and off for a couple months now, I've completed maybe two dozen patrols across three or four career, the majority of these in a Type-II in late 39, early 40. Anyways, I have a random assortment of questions.

1) On one of my latest patrols I was horrified to find my attack periscope was completely blurry, like someone had smeared Vaseline all over the lenses. We hadn't taken any kind of damage, nor was any listed on the F7 screen. I assume this is SC3 Commander's malfunctions at work?

2) Does using the ATLAS ECHOLOT to determine your depth under keel tip you off to any ASW that might be listening for you? I assume it does since it gives out a lovely sonar PING! when used.

3) Does playing your gramophone cause noise an ASW can pick up? I turn it off when something with hydrophones is in the area just to be cautious, but I'd like to be sure.

4) Is it normal for coal ships to explode violently after being hit by a torpedo, or did I just get a lucky hit recently? I can see a oil tanker exploding, but while coal is flammable (and so I was certain even one torpedo would doom the target if a fire started) I didn't quite expect the whole deck/superstructure to go BOOM after burning for a few minutes. Then again the whole encounter with the coal ship was unusual. It was parked 50ish km east from the entrance of the Firth of Forth alongside a navigational lightship.

Damn, I was certain I had a few other questions, but that is all I can remember off the top of my head. Oh well. Thanks for the help!