A pre-purchase survey is broken down into three areas. Most surveys start in the water with the vessel afloat. It will enable the systems to be reviewed, such as shore power or the hydraulic bathing platform, the windlass to be operated, and the mast to be scaled. If the boat is ashore, the two sections combine as the out-of-water sections or wetted areas, which could also be inspected simultaneously. 

Once the in-water section has occurred, the focus shifts to the out-of-the-water section. The vessel would typically have to travel to a yard to be lifted for inspection; therefore, a sea trial could be concluded on the route. As the first two stages traditionally cover the majority of operating systems, the sea trial is the last stage of the proceedings.

What's the aim of a sea trial?

A sea trial ensures that the mechanical side can perform to its intended range under power. A performance trial. It also provides us with a sailboat to confirm it can sail.

Usually, if no other discrepancies have arisen from the first two parts of the survey, this is the final stage, but there are still other items to be reviewed and reported on at sea. 

What if the vessel is ashore?

The survey will still go ahead, but you can postpone a sea trial and the in-water section until the report has been finalized and reviewed. Consult your broker for the best action plan.

Can I start in any order?

Yes is the answer, but we do what we do in a particular order for a reason. It is your survey. Out-of-water sometimes comes first to evaluate the overall hull condition. Clients who recognize that osmosis can occur and do not want to own a vessel with osmotic blisters may make this the primary objective.

Others may prioritize the functionality of the interior.

At any stage, the client can stop the survey. The deal can be nullified for reasons un-given, and you can walk away.

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