What is a marine survey?

A complete survey includes an on-land examination, a sea trial, and an appraisal. A survey examines all components of the major systems on a boat, including propulsion, underwater appurtenances, hull and through-hull integrity, fuel system, plumbing, electrical system, controls, bilge pumps, safety gear, most electronics, and when possible the engines and generator will be operated and inspected visually.

 
When a boat is sold, usually the purchaser will commission a marine surveyor to examine the boat before the deal is closed. Marine surveys are also sought by boat owners for financing reasons, estate valuation, tax donations, insurance requirements, or damage appraisal. Additionally, insurance companies seeking damage-repair reports and an occasional seller are potential customers.
NMMS conducts inspections and prepares appraisals primarily for purchasers of pre-owned yachts and small craft. Marine surveys may also be done for financing, estate valuation, tax donations, insurance, or damage.

 
A complete survey is a written report of the results from thorough visual inspection--while in the water, while underway in a sea trial, and after haul out--of the observable surfaces in the boat, including essential equipment, for evidence of defects, damage, failure, or structural faults.

 
A good survey can take an entire day, and the preferred order for conducting the main components of the inspection are: A. Boat now dry docked: (1) Complete static inspection on land; (2) Launch; 3) Sea trial (dynamic inspection). B. Boat now in water: (1) Start static inspection in water; (2) Sea trial (dynamic inspection); (3) Haul out; (4) Complete the static inspection on land.

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