Some of the things that I added:
- Boom preventer,
- Hard points - maybe 30 of them to tie everything inside down so it can't shift around,
- Cockpit gate - the Catalina 42 has an open rear cockpit to the swim ladder. Amazing how much stuff floated off the stern,
- Main Halyard pull down - a line to force the main sail to come down. They don't always want to in strong wind,
- Cunningham - not strictly necessary but cheap and great for easy mainsail trim,
- Heavy duty bucket on a line - the source for salt water for cleaning etc. underway,
- Lazyjacks. I had them on the boat but with a racing crew we had taken them off. With 9 guys on the boat it was pretty easy to get the main down on the boom. With just me - well you get the point.
- Mast steps - you don't miss them until you need to get up the mast at sea
- Tricolor - I really wanted to be seen from a distance by other boats.
- Water level in batteries,
- Fuel filter, drain the water from the bottom of the centrifugal separator
- Water filters - particularly for the refrigeration system, if I had air conditioning I would expect that to clog quickly also,
- Engine oil,
- Rig - with particular emphasis on the cotter pins that prevent the clevis pins from coming out,
- Running rigging - sheets and halyards - never a concern before, amazed at how they would shred or split,
- Bilge pump switches - my boat is very dry - I did not know that one of the switches had failed (I have redundant systems) until I checked it.
- Thru-hulls. I open and close them to make sure they are not frozen up. I learned that in very cold weather they tend to stick, as it warms up they get loose again.
- Lubrication - on my boat the engine kill lanyard tends to freeze up if not lubricated on a regular basis.
- Propane tank level - it sounds silly but... I have two tanks. One used to be the spare and the other ran the stove/oven. But now the second tank also runs the cabin heater so it is possible for both to empty at the same time. Not a good thing if you need to cook!
- Storage lockers - I learned the hard way that the bottoms of storage lockers can get very wet. Usually this is from condensation. I open them up and empty them out. Everything in them is in plastic bags. I have thrown away more than my fair share of stuff ruined by sitting in a puddle of water for a couple of months.
World Cruising Mods
Since you are retrofit mode let me add two items to your list should you expect to leave North/Central America and venture on.
- A 220 volt 50 cycle battery charger and "European" shore power inlet and cord/adapters. Many of the new chargers are 'world chargers." They will accept 90 V to 250 V and 50 Hz to 60 Hz power. My solar panels kept the batteries topped off but they were in dire need of an equalization charge after 6 months of just solar panel recharging. My particular favorite company is Victron Energy - Inverter/chargers - Inverters - Battery Chargers - and more There are two companies I would never buy from given my previous experience - Xantrex and Raymarine. Victron equipment is more expensive but is the brand of choice on high end yachts.
- Another solution rather than a new charger is a 220V to 110V transformer. Much less expensive. My problem was that the shore power voltages were just off enough that my 110V charger would not run because it read either low or high voltage.
- A butane tank adapter that can attach to your propane system. Not an expensive item but hard to find all the bits - metric to English - male/female etc. Many parts of the world use butane instead of propane. You stove will work - it will not be quite as hot. Better than not working at all.