Draft difference: Fins vs. Prop

[quaylefarmer]

Just purchased a SANTE 230 and getting everything organized with my hoist to get it in the water.

I am planning around the draft of 30".

Does anyone know how the fins draft relative to the prop/rudder?

Trying to get an idea if I need to work around a 30" draft at the fins or if they ride shorter vs. the prop.

Depth is at a premium.

Thanks for your help!

[Paxdad]

If you look at the specification on the Nautique website it shows a 29" draft with the propeller being lowest/ deepest.

[quaylefarmer]

Thanks for the response.

I'm trying to get a handle on the difference in draft between the fins and the prop/rudder.

[Quinner]

Tracking fins are not nearly as deep as your prop. With most lifts the bunk width and height is adjustable and would all be variables in how it relates to clearance. If your lift is still on shore now would be the time to get a level, string line and tape measure and see where you are set now. Measure bottom of tracking fins to underside of hull from given points off center and adjust your bunks to match + 1/2" or so. Further your bunks are apart towards the bow the greater the distance will be from the top of bunk to bottom of fins. Most likely you will want your foot pads slammed to the lowest point if depth is an issue. Also look at how your trailer bunks are, you may want to set your lift up to match adjusting height as necessary for clearance.

[swatguy]

Draft is always referring to transom area with prop and rudder being lowest points. Your tracking fins will always be less how much less varies from model to model and mfg to mfg.

[quaylefarmer]

Draft is always referring to transom area with prop and rudder being lowest points. Your tracking fins will always be less how much less varies from model to model and mfg to mfg.

Thanks Swat.

This is what I am trying to confirm specifically for a 230.

I am fighting shallow water and trying to get an idea of what kind of depth I need at the hoist. The fins will clearly be the low point (entering the hoist)......what I dont know is how low.

[jesutton3]

Maybe shoot Nautique an email directly? If anyone knows I'm assuming its them.

[swatguy]

Thanks Swat.

This is what I am trying to confirm specifically for a 230.

I am fighting shallow water and trying to get an idea of what kind of depth I need at the hoist. The fins will clearly be the low point (entering the hoist)......what I dont know is how low.

Having installed numerous lifts there are so many variables that no one measurement will be spot on exactly. It's always trial and error. You can only get a rough idea and make slight adjustments to maximize depth. It's a tedious process, but the only way to do it. You can't just measure from the bottom of the hull to the end of the skeg because it will depend on where the bunks line up as to the actual draft you need. Having the bunks wide gives you the most clearance for shallow water, but too wide and you run the risk of the keel/skegs hitting your crossmember on the cradle. The closer you bring the bunks in to each other the higher the boat will sit off the cross member, but the more depth you will need for clearance.

A good rough estimate that worked for us consistently as a starting point was to measure the points while the boat is on the trailer. The width of the bunks and the depth of skegs. Then align the bunks on the boat cradle the same way and it will be pretty close. If you feel you have too much clearance and are wasting space and can't drop the bunk on the cradle one more notch , if you widen the bunks the boat will sit lower, in essence and give you the greatest clearance for shallow water. Hopefully that made sense