Ockelbo B21 CAB Owner's Manual
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Contents
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2. OPERATING THE BOAT__PAGE 162.6.1 Trim of the engine (boat pitch)The outboard engine has a built-in trim and tilt function. The trim adjusts the angle ofthe propeller versus the boat transom. See also chapter 4.6.1. Trim Up2. Neutral3. Trim DownThe engine trim is used to adjust the bow up or down (the so-called pitch) while theboat is under speed. A well-adjusted engine trim will maximize safety and comfort, andwill minimize fuel consumption.Mastering the trim requires some practice so if you are uncertain, ask someoneexperienced for help. Correct trim is very important for a safe, comfortable and fueleconomic ride, and for fast acceleration.The basic directions to find optimal trim are as follows, and shall be done during flatwater conditions:Accelerate to planing speed (approximately 10 to 15 knots depending onconditions): Engine trim is used to help the boat accelerate as fast as possible from zero toplaning speed, with an optimal pitch. Fast acceleration to planing saves fuel andimproves the view. Engine trim shall be at maximum trim down position directly at the start. As the boat accelerates and reaches planing speed, the trim is changed from thetrim down up to neutral trim, to keep the bow level or at a slight upward angle.Failure to do so causes the bow to plough deep into the water, preventing theboat to pick up speed and run safely. |
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