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Thread: Looking for bolt on skag fin for bottom of hull at jet/pump inlet on 01 Commander

  1. #1

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    Looking for bolt on skag fin for bottom of hull at jet/pump inlet on 01 Commander

    My 01 Commander 21' Jet had 2 bolt on skags/fins that were thru bolted to the bottom of the hull, one on each side of the pump inlet area. I let someone use my boat and it drifted up on a rock bar while they were on a float, so they broke off. I've contacted Commander and they do not have a pair or know where to get them any longer. Anyone have a pair they'd sell? The picture shows what I have left of the ones that were on my boat(I jet ski'd to the rock bar and picked up my broken pieces )

    Already picked up a new rudder from Place Diverter.
    Attached Thumbnails Attached Thumbnails rudder-skag.jpg   rudder-fin.jpg  

  2. #2
    Rob Hawes White Lightning's Avatar
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    Re: Looking for bolt on skag fin for bottom of hull at jet/pump inlet on 01 Commander

    I'm almost sure that they are a afterthought wheather installed from the manufacturer or someone else.....I may be wrong. BUT, I'm pretty sure that the boat will run without them.....being 21 feet long.
    Rob
    Rob Hawes-Anchorage Rod Works-Anchorage, Alaska
    "Alaska Hawaii, Shipping Here Is Terrible!" (AH, $hit Club)

  3. #3

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    Re: Looking for bolt on skag fin for bottom of hull at jet/pump inlet on 01 Commander

    This is true.....the boat will run without them. They were installed by Commander, I checked with Sy. The place he was having them made went belly up. They basically replicate the skag/fin that is part of the intake housing on a Berkeley pump intake. If Berkeley found them to be a good thing, that's enough for me to try and find a set to put back on.

    I could make something out of regular extruded aluminum angle, but these being cast aluminum are a natural failure point if run up on something. They did their job breaking off instead of jacking up the bottom of the hull when they hit the rock bar. I don't think extruded aluminum angle would break as easily. In addition, they are not a true 90*...they have some angle built into them so they are vertical and not raked when attached to the V bottom hull.

  4. #4
    Rob Hawes White Lightning's Avatar
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    Re: Looking for bolt on skag fin for bottom of hull at jet/pump inlet on 01 Commander

    If it were me, I'd get some 6061 aluminum angle of the proper thickness and height and break out the belt sander and copy the original shape. I seriously doubt that a slight change in vertical angle will effect the handling characteristics of a non race hull. They are a skag designed to help the transom bite in on a sharp turn and not skid so much.
    Rob
    Rob Hawes-Anchorage Rod Works-Anchorage, Alaska
    "Alaska Hawaii, Shipping Here Is Terrible!" (AH, $hit Club)

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