Nachtfisch human torpedo (alternative name),One of the most simple replicas ive seen.

The "nachtfisch" was a german WWII human topedo made with a modified G7 torpedo.
It was armed with a G7 torpedo under the craft. The top speed being four kntos and the inability to dive (Shouldnt it be a boat then?) in conjuction with the limited oxygen supply made it a very dangerous weapon, with up to 80% of casulty rate for the pilot (Just look at it, is the bastard son of wunderwaffen). It first was used in Anzio beach but suffered heavy losses in exchange of no ships. It saw extensive use in the normandy landings, being launched from Seine`s south bank.
During the war it sank 7 ships at a very expensive prize.

No special controls to mention.
Cupola made using negative scale (Thats the cost of transparency)