Pre-Departure Checks: Building the Data of What Normal Looks Like

A pre-departure check is not box-ticking. It is building data on what normal looks like for your boat, so the day something is not normal, you catch it at the dock instead of meeting it at sea. Weather, stowage, bilges, fluids, systems, anchor. Test everything before you need it in anger.

If your current routine is turn the key and count the engines, or your checks happen only when something already sounds wrong, this is for you.

The problem

A capable owner, a solid boat, and no baseline

Dan, as I call him in these pages, is exactly the owner you would want: hands-on, mechanically fluent, thirty hours into a boat in the 50-foot range. What he did not have yet was a departure routine: the same walk through the boat, in the same order, every time. That routine is what builds your baseline. Without a baseline, every reading is a mystery. With one, every reading is a comparison.

And the boats keep making the argument for it. Across recent training sessions the pre-departure routine has caught a bow thruster switched off, two windlasses wound so tight the anchor could not free-fall, fuel crossovers left open, and a diesel weep under an engine. Not one of them announced itself. The routine found them all.

How we trained through it

One ordered pass, narrated, then his

We ran the full sequence together, in order, with the reasoning said out loud. Weather read against his dock. Stowage next: hatches, portholes, anything that could fly or flood, because a boat crossing wakes is no place to be chasing loose gear. I learned that lesson strapping a submarine and a fleet of toys to a support vessel for a Pacific crossing, two weeks of lashing, tested by a captain who tried to rip every strap loose. Mid-ocean, nobody had to go out on deck. Test everything before you need it in anger.

Then below. Bilges sighted and levels noted, including the one with old water in it, noted precisely so any change afterwards means something. Fluids next. Wipe the dipstick first, then read it, so you get a true sample. Look at the coolant tanks with your own eyes. That is where we found the diesel weep under the engine. We worked out the likely cause and put it on the list, calmly, at the dock, instead of discovering it as a smell underway. Every seacock found and moved by hand to prove it still turns, plus an honest conversation about them, because good seamanship says close them when you leave and almost no owner does. Knowing where they are and that they will move is the non-negotiable part.

Then systems, including the ones he was not planning to use. The generator got its oil checked and its first start with the panel open, which is how we spotted a raw-water pump beginning to seep. Not a showstopper, just a line on the watch list, which is exactly where you want your problems living. Radio, radar, lights, all confirmed working while confirming them costs nothing.

The glue is simple record keeping, built around whatever the owner already uses. Dan runs spreadsheets, so his boat data lives in one, and photos of the same spots each time let him answer the question memory never can: is that the same as last month? Thorough now. Five minutes once it is his.

We are not ticking boxes. We are building data on what normal looks like.

The outcome

Two faults caught, zero drama, one owned routine

The diesel weep and the seeping pump went onto a calm work list with photos attached, found at the dock where problems are cheap. The bilge baseline is logged. The systems are proven. And the routine now runs in his order, on his boat, in his spreadsheet, which is the difference between following a checklist and owning one. His boat cannot surprise him with anything it already showed him at the dock.

The quieter benefit is that leaving the dock stopped being the tense part of the day. The routine gives you something to do with the nerves, and by the time the lines come off you have already answered the questions that used to sit at the back of your mind for the first hour underway.

What you can take away

Checks are how your boat reports problems while they are cheap

A pre-departure routine is not box-ticking. It is building a record of what normal looks like for your boat, so the day a reading or a sound is off, you catch it at the dock instead of meeting it at sea.

Run the same order every trip. Weather, stowage, bilges, fluids, systems, anchor. A fixed sequence is what makes the odd thing stand out, and it turns a thorough check into five minutes.

Test everything before you need it in anger. The moment to find out the horn, the pumps, or the windlass is not working is while you are still tied up.

The difference

A generic checklist is not your checklist

Printable checklists are everywhere and they are better than nothing. But a list written for every boat fits no boat: your systems, your seacocks, your generator, your quirks decide what your five minutes must cover. Training the routine aboard turns the generic skeleton into your boat's actual checklist, with your baseline photos behind it.

Start with the skeleton today if you like: the free interactive First Mate pre-departure checklist runs the full routine and emails the completed check to your logbook. Then we make it yours.

The routine gets built on your boat, in your order, because it has to belong to you. A checklist I hand you gets run properly twice and then skipped. A routine you built, on your systems, with your quirks in it, gets run because it makes sense to you. The aim is a habit that outlives any involvement of mine entirely.

How we do it

How we build your pre-departure routine

1. Same order, every time. Weather, stowage, bilges, fluids, seacocks, systems, anchor. Order is what makes it five minutes instead of fifteen.
2. Note before, not after. Bilge levels and gauge readings recorded before departure, so change is visible and meaningful.
3. Sample fluids properly. Wipe first, then read. A lazy dipstick teaches you nothing.
4. Test what you do not plan to use. Generator, radar, radio, lights. The day you need them is the day you cannot fix them.
5. Photograph the same spots. Your camera roll becomes your maintenance memory. Was it like that last month? Now you know.
6. Finish with the anchor ready to drop. The last check gets your emergency brake ready for close quarters. It has caught two seized windlasses this season alone.