Martin,

In this image, about 1/3 aft from the bow, low on the hull, is an elliptical shape that you may say looks like a...torpedo tube. Sorry for David's comments.

Thank you for replying to my email questions and thank you for posting the photos and contributions on this site. It is always good to hear from builders. Please continue posting of your progress. Hope to speak with you again soon and best of luck in your endeavors.