Hi and welcome to "The Belafonte". This a companion mod for Caerfinons "The Life Aquatic" mission packs mod. https://spacedock.info/mod/2808/Kerbin%20Side%20Remastered%20-%20The%20Life%20Aquatic

Included are the ship "The Belafonte", The mini sub "Deep Search", The small helicopter "Zelicopter", A "Resue Boat" , a Deck Crane and cable that use the BREAKING GROUND system, 3 types of grabbers: A magnet for the crane to pick up the sub, A heli pad grabber to secure the Zelicopter and a boat grabbing frame to retrieve the rescue boat.

The boat and the frame have a decouple on the nodes that first connect them so that the boat can be included when building. You then decouple and use the grabber from then on. Remember to unstage all decouplers if you don't want them to immediately decouple when first staging.

There is a marine engine for the Belafonte and there are 2 nodes on the bottom rear for 2 of them to attach to. They will not work above sea level.

The boat motor has a reverse toggle, as do the sub and the Belafontes marine engines.

There is a docking plate that has a node on deck to attach to, in front of the crane, it is for the sub to dock to. Just undock right before grabbing with the magnet and then crane the sub to the water. On return drop the sub just above it and the sub will usually vibrate itself back to being docked.

The sub and boat have a ballast system. The boat should spawn half full, this is because to get the balance between not going under at full load and not looking like it is hovering above the water it needs to be balanced. It should look right at first but if you full load you will probably need to empty some.

There is built Belafonte in a SPH folder in the main folder, minus the Zelicopter.

The Zelicopter is all one piece so you just spawn and it is ready to go.

The top 2 staircases never would climb out right so you need climb till you are above the deck and then let go.

I hope you have some fun with this.