I will comment on the guns in the crow's nests. The barrels are pointed upwards? I believe the (shipbucket) standard is to have them straight aft or forward if possible.
I'm not an expert but I've heard that if you place the contra-rotating propellors of a helicopter two close to each other they can cut each other off during sharp maneuvering or turbulence.
Hello guys, I haven't drawn lots recently but hopefully I will rectify that here is a trawler that is a common sight around these parts: http://img839.imageshack.us/img839/1674/vigrire71.png hope it isn't too badly drawn. I guess I could add some slight shading to the superstructure. Vigri RE 71 is ...