The first one shows the ballast tank with the masts hydraulics installed, the tank is 6 inches in diameter .
The next pic shows the stainless steel wtc I make of which this one has an extension on it ,I will show the insides soon. The next shows the tank with the end cap off later it will be permenently installed,note the air banks and the water baffles there are 4 bafles.The air tanks are Co 2 paint gun air banks,they also come in a variety of sizes and are very heavy duty but not heavy.
On the other side of the tank is the 12 amp hour battery it is heavy and hence a large ballast tank tank that it sits in glued in place.
In the next set of pics you will see how the tank opens for changing the battery using a large screwed on O ringed sealed bulkhead I found and have adopted and works great.Sorry the picture is rotated 90 degrees,the tanks are horzontily side by side.
Later the air lines are flared and attached and the tank glued to the hull,then drilling of the bottom vent holes and the blow line installed is done and the ballast system is complete.The electrical cable will be stowed under and along side of the 2 vessels.Also there will be another stainless steel wtc in the front section to house more pumps, etc. for the retracting dive planes,and torpedo controls.All ten chanels of the radio will be used.Sounds like alot but nukes have alot of neat stuff.
When I first tested the tank with the rest of the sub in my test tank only a small amount of counter ballancing foam was required to ballance the sub with plenty of freeboard above the waterline as are the real ones.
In the next set of pics the masts will be shown extended thou not aligned yet but operational,along with how its made/ works and components.Just wait till you see the inside of the WTC and the main drive!
Well have a great day Dave