The oil cooler at the left of this photo — the tube marked HOT — can get very hot indeed if the flow of cooling water is blocked, so hot it can make the paint bubble. Overheated oil has to be changed, so keep an eye on both cooling-water flow and the oil-temp gauge.
You may have some preconceptions that turn you away from catamarans. But with voluminous interior space and serious seakeeping ability, the PC52 from Horizon may help to change your mind. Read the full test here. ▶