Quick OverviewLower fuel consumptionStraight trackingExcellent steering at low speedsSmoother rideMaximum liftReduced planing timeIncreased stabilityReduced cavitationEffortless installationStainless mounting hardware includedStill in original packaging that is a bit untidy.Use: Hydrofoils are specially designed wings which increase a motor’s performance. They are available in two sizes, for 4HP to 50HP motors and for over 50HP. They are placed just above the propeller. By using the hydrofoils, fuel consumption is decreased, navigation is much smoother, stability is increased and at the same time offer a maximum lift, reducing cavitation. Hydrofoils also help the boat to easily trim.Instructions of Use: Hydrofoils are fixed above the propeller on the cavitation plate and they are attached with stainless steel screws. The hydrofoils are fully adjustable for a smoother ride.Mounting the hydrofoils on the outboard:The basic rule regarding the position of the hydrofoil is right above the propeller on the cavitation plate. The ideal position is for the hydrofoils to be mounted two centimetres before the propeller (see picture 1 and 2) and thus covering it completely (see picture 5). In this way, when the propeller starts to spin, most of the water will be pushed against the hydrofoil, thus maximising the steering and planning capabilities. If the hydrofoil is mounted too far ahead (see picture 3), then only a small amount of water will be pushed against it or if it is mounted too far at the back (see picture 4), then the maximum power of the water will be lost before the hydrofoil.Replacement: These products do not need any maintenance. However, if you notice any cracks in one or both hydrofoils you should replace them. Also, if at any point you notice excess vibrations on the steering wheel or outboard motor, you should replace the hydrofoils immediately.Code 10122For engines 50HP and OverA(mm) 270B(mm) 240C(mm) 7D(mm) 30pick up at Corrimal or add postage costs approx $13