Here is some information for boat buyers about a pre-purchase survey sea trial.
After a purchase has been agreed and an agreemeert has been signed we do the survey and sea trial.
*If it is a larger boat with diesels it is best to have an engine surveyor on board in addition to to the boat surveyor.
The engine surveyors want the engines to be cold for the first start up, they will attach all of their sensors and monitors to get their own true readings of pressures and temperatures. Then off to the boat yard for a haul out. This is usuallly done first to confirm that the bottom is clean and that the props are OK, so that true full throttle tests can be done with clean bottom and props. The buyer pays for hauling and pressure washing. It is common for the seller to pay for prop cleaning if needed.
Then out to a place where the boat can run up to speed to check steering, auto pilot, radar and all the other equipment. A full throttle run for a few minutes makes the seller cringe but is needed to show that the engines reach to proper full RPM. Then some back down tests to check engine mounts and sometime high throttle runs on one engine at a time only.
Then back to the dock to finish testing all the equipmjent and then discuss the findings. Oil samples are taken after the run and they should be available within a few days, plus the written report from the surveyor should be recieved by the buyer within 48 hours. At the dock are the last checks including the anchor windlass, davit and swim platform lift if equiped, these are done last in case of a failure so the sea trial can still take place. A quick run in the dinghy is good because the gas could be old and glog the fuel sysytem.
Then it is time to negotiate again to determine who pays for what, repairs or credits.
*
After a purchase has been agreed and an agreemeert has been signed we do the survey and sea trial.
*If it is a larger boat with diesels it is best to have an engine surveyor on board in addition to to the boat surveyor.
The engine surveyors want the engines to be cold for the first start up, they will attach all of their sensors and monitors to get their own true readings of pressures and temperatures. Then off to the boat yard for a haul out. This is usuallly done first to confirm that the bottom is clean and that the props are OK, so that true full throttle tests can be done with clean bottom and props. The buyer pays for hauling and pressure washing. It is common for the seller to pay for prop cleaning if needed.
Then out to a place where the boat can run up to speed to check steering, auto pilot, radar and all the other equipment. A full throttle run for a few minutes makes the seller cringe but is needed to show that the engines reach to proper full RPM. Then some back down tests to check engine mounts and sometime high throttle runs on one engine at a time only.
Then back to the dock to finish testing all the equipmjent and then discuss the findings. Oil samples are taken after the run and they should be available within a few days, plus the written report from the surveyor should be recieved by the buyer within 48 hours. At the dock are the last checks including the anchor windlass, davit and swim platform lift if equiped, these are done last in case of a failure so the sea trial can still take place. A quick run in the dinghy is good because the gas could be old and glog the fuel sysytem.
Then it is time to negotiate again to determine who pays for what, repairs or credits.
*