Front Viewport


This is a possible change to the standard 15 inch viewport shown on the plans.  This design would give me a 580mm OD 135 degree domed viewport, similar to that on the “Nemo” submersible.  Three through hull retaining ring hold downs would hold the port in place and be able to be removed from the inside to push the dome clear in the event of an emergency.  The hole is large enough to get out of.  This would give me a second escape point.  Some changes to the design of the forward ballast tank will be needed to accommodate this change. 


This was my first thoughts on this idea and following further research, I realise this configuration is incorrect.  The “O” ring groove is not acceptable, the inner lip is wrong and the thickness of the mounting flange as a whole is to thin.  08/2008

Submersible Build Log