A sea trial is completed under sail and power, when possible. The machinery and drive gear are tested under loaded conditions. The manufacturer, age and engine hours are taken into consideration when making comments. The engine survey is a visual inspection of the engines in static and loaded conditions. There will be a general inspection of the engine and associated equipment. Comments will include surface corrosion, coolant, fuel & oil levels and condition, detected leaks, abnormal noises, vibrations and emissions, engine mounts, fitted compressors & alternators, hoses, V-belts, the gearbox, shaft couplings, alignment, stuffing boxes / shaft seals, control cables and wiring. The vessel will be sailed, when possible, to enable the surveyor to inspect the deck hardware under load and to inspect the general condition of the sails. Spinnakers and storm sails are not normally rigged for inspection during the sea trial.