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Hydrofoil XRIII from Stingray-gctid404313

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  • Guest
    Guest replied
    Tabman wrote:


    TPA1212 is a Trim Plane Assembly 12 x 12 and that includes the mounting plates. But you can reuse the original mounting plates so you need a TPO, Trim Plane Only

    Do you want to buy the 12 x 12 with the Drop Fins? If so that part number would be TPO1212DF Or the 12 x 12 without the drop fins, that part number is TPO1212.

    Most dealers will be happy to order there for you. But they probably won't have them on the shelf.

    Tom

    Bennett Marine
    You can call west marine and they can order them for you.

    Leave a comment:


  • Tabman
    replied
    Dadrock33 wrote:
    Hey Tabman or other experts - filling up the trim tab reservoir today (a bit just below the "operating level" line) and as I was filling it (first time), I noticed ATF fluid in a very slow drip coming off the area where the system is mounted . . . . will have to investigate further on Monday . . . could it be just a loose line or a cracked reservoir? . . . . my move to those 12 X 12 drop fins trim tabs may have to wait (couldn't find them on West Marine's webpage anyway - just the TPA1212 [the whole setup]) . . . . thanks for the help.
    Jim,

    Is the HPU (pump) mounted in a slight angle? If so the fluid might be higher in the back where it mounts and could leak. It's pretty rare for a reservoir to be cracked. On a boat your size it is fine to have the fluid level in the middle of the fill range.

    TPA1212 is a Trim Plane Assembly 12 x 12 and that includes the mounting plates. But you can reuse the original mounting plates so you need a TPO, Trim Plane Only

    Do you want to buy the 12 x 12 with the Drop Fins? If so that part number would be TPO1212DF Or the 12 x 12 without the drop fins, that part number is TPO1212.

    Most dealers will be happy to order there for you. But they probably won't have them on the shelf.

    Tom

    Bennett Marine

    Leave a comment:


  • Dadrock33
    replied
    Hey Tabman or other experts - filling up the trim tab reservoir today (a bit just below the "operating level" line) and as I was filling it (first time), I noticed ATF fluid in a very slow drip coming off the area where the system is mounted . . . . will have to investigate further on Monday . . . could it be just a loose line or a cracked reservoir? . . . . my move to those 12 X 12 drop fins trim tabs may have to wait (couldn't find them on West Marine's webpage anyway - just the TPA1212 [the whole setup]) . . . . thanks for the help.

    Leave a comment:


  • Dadrock33
    replied
    Yep, think I'm going to follow Daren and buy the tabs themselves in the 12X12 . . . that's the easiest way to find out if this is what will help the most. If it's good, then maybe for Christmas (if I'm good ) I can get myself a gift of a whole new setup . . . . yeah, well . . . maybe one side at a time :greedy_dollars:

    Thanks for the help.

    Leave a comment:


  • Guest
    Guest replied
    I am going with the 12 x12 that were recommended by tabman. west marine has them for about 100 bucks a piece.

    Leave a comment:


  • Tabman
    replied
    Dadrock33 wrote:
    can't seem to send image in a PM. . . only allows URLs . . . steep learning curve so it will have to wait. Here's the picture:

    http://baylinerownersclub.org/media/....jpg[/img]I measured the area of the flat (water contacted) part and it comes up 12" wide X 8" long with a 1/2" downturn edge (yep, I know I have to cut the bunks down, too long for the boat but guess PO didn't know that) . . . would those same part numbers fit my 2452 also? . . . . thanks.P.S. My transom is very straight . . . so would an 18" X 12" be better? . . . I have REAL problems getting out of the hole and top speed isn't much.
    Dadrock,Yes, the discussion with Daren would apply to you as well. Adding the 12 x 12 with drop fins would really help and is the easiest and least expensive way to get improvement since the actuators (rams) won't need to be moved and the old mounting plates can be reused.18 x 12 Trim Tabs, with drop fins would be even better, but you will need to move the actuators inboard to keep them in the middle of the Trim Tabs and you would need to purchase new Trim Tabs and mounting plates. You would also need to drill new holes for the mounting plates and fill the old ones.Let me know what you think.TomBennett Marine

    Leave a comment:


  • Tabman
    replied
    jak9124 wrote:
    Tabman,

    The edge of the hinge has about a 3/4" gap. It is pretty easy to find material to use as bushings between the hinge and the boat for the sake of the mounting screws, but you have to fill that gap or water will shoot up the back of your boat. On the plus side the cooler I keep on the swim step is as clean as it has ever been!
    Jak9124,

    Yes, gotta fill that gap Starboard or a nylon type of material works well.

    Tom

    Bennett Marine

    Leave a comment:


  • Dadrock33
    replied
    can't seem to send image in a PM. . . only allows URLs . . . steep learning curve so it will have to wait. Here's the picture:

    [img]/media/kunena/attachments/vb/715735=31013-Trim-tab---rear-view.jpg[/img]I measured the area of the flat (water contacted) part and it comes up 12" wide X 8" long with a 1/2" downturn edge (yep, I know I have to cut the bunks down, too long for the boat but guess PO didn't know that) . . . would those same part numbers fit my 2452 also? . . . . thanks.P.S. My transom is very straight . . . so would an 18" X 12" be better? . . . I have REAL problems getting out of the hole and top speed isn't much.

    Leave a comment:


  • Guest
    Guest replied
    Tabman wrote:
    jak9124,

    When you put a straight edge across the transom how large are the gaps you would need to fill?

    Tom

    Bennett Marine
    Tabman,

    The edge of the hinge has about a 3/4" gap. It is pretty easy to find material to use as bushings between the hinge and the boat for the sake of the mounting screws, but you have to fill that gap or water will shoot up the back of your boat. On the plus side the cooler I keep on the swim step is as clean as it has ever been!

    Leave a comment:


  • Dadrock33
    replied
    don't want to pirate . . . I'll send a PM

    Leave a comment:


  • Tabman
    replied
    jak9124 wrote:
    I don't know if anyone is still paying attention to this thread but if so I may have some information for anyone with the 2452. As Tabman has said this boat is offered with 12 x 9 tabs which are undersized by bennett charts. I had a mental battle for a good part of last winter on whether to try a hydrofoil or bigger tabs. I wanted the boat to be correct so I ordered 24 x 9 tabs because bennett recommends one inch of width for every foot of boat for the 9" tabs. The boat gets out of the water MUCH quicker!! The only problem with this as I should have realized originally is the transom is convex. Bayliner manufactures these boats with a flat area for the 12" hinge but if you go with the 24" hinge you'll have to figure out a way to fill in the gap that will be left between the hinge and the back of your boat, I haven't done so yet but plan to devise something before my next outing. In summary, by all means try the 12 X 12 tabs first as just the plates will be rather inexpensive, if you need more lift I'd go to the 18 x 12 instead of the 24 x 9. I hope this has been helpful. Good luck.
    jak9124,

    When you put a straight edge across the transom how large are the gaps you would need to fill?

    Tom

    Bennett Marine

    Leave a comment:


  • Guest
    Guest replied
    I don't know if anyone is still paying attention to this thread but if so I may have some information for anyone with the 2452. As Tabman has said this boat is offered with 12 x 9 tabs which are undersized by bennett charts. I had a mental battle for a good part of last winter on whether to try a hydrofoil or bigger tabs. I wanted the boat to be correct so I ordered 24 x 9 tabs because bennett recommends one inch of width for every foot of boat for the 9" tabs. The boat gets out of the water MUCH quicker!! The only problem with this as I should have realized originally is the transom is convex. Bayliner manufactures these boats with a flat area for the 12" hinge but if you go with the 24" hinge you'll have to figure out a way to fill in the gap that will be left between the hinge and the back of your boat, I haven't done so yet but plan to devise something before my next outing. In summary, by all means try the 12 X 12 tabs first as just the plates will be rather inexpensive, if you need more lift I'd go to the 18 x 12 instead of the 24 x 9. I hope this has been helpful. Good luck.

    Leave a comment:


  • Tabman
    replied
    Devildog9999 wrote:
    Forgive me - not trying to jack the thread, but Tabman - what do the side fins on the tab accomplish? Are they a significant improvement on the flat style?
    Devildog,

    The drop fins capture water pressure that normally escapes out the sides of the Trim Tabs and channels it aft to generate additional lift. When you have a smaller Trim Tab such as a 12" x 12" the drop fins can make a notable diffidence in the total lift they make. As the Trim Tabs get larger the percentage of lift the drop fins contribute is less when compared to the whole, so the effect is less pronounced.

    Ideally fitting larger span (side to side measurement) Trim Tabs is the best way to improve their performance. However this means relocating the actuators (rams) and mounting plates, and or there may not be enough room on the transom for larger Trim Tabs.

    Increasing the 12 x 9 Trim Tabs to 12 x 12 with drop fins will generate the most lift possible without having to move the position of the hinge plates or actuators.

    Tom

    Bennett Marine

    Leave a comment:


  • Guest
    Guest replied
    Tabman wrote:
    Daren,

    I looked at the pictures of your boat you have posted in your album here. The Trim Tabs that are on there now are 12" x 9" and are undersized for your boat (we recommend that size for a 15 - 19 foot boat).

    You could install 12" x 12" Trim Tabs, or better yet 12" x 12" Trim Tabs with Drop Fins on the side, without having to move any of the holes on the transom.

    Increasing the size of your Trim Tabs will make a world of difference how your boat runs and it will be much more effective than adding a hydrofoil.

    Tom McGow

    Bennett Marine
    Forgive me - not trying to jack the thread, but Tabman - what do the side fins on the tab accomplish? Are they a significant improvement on the flat style?

    Leave a comment:


  • Guest
    Guest replied
    Tabman wrote:
    Daren,

    I bet they are actually 8-5/8" fore to aft x 9" side to side, that is what our 12 x 9 Trim Tabs measure, and that is what I saw in the pictures of your boat in your album.

    Since you can reuse the same mounting plates that hold the Trim Tabs to the transom you can just buy new Trim Planes that are 12" x 12" with the 3" Drop Fins.

    The part number for them is TPO1212DF and you would need 2 each.

    If you ask your favorite dealer they should be able to give you a price.

    Tom

    Bennett Marine
    Now I need to find a favorite dealer. Thanks for your help.

    Leave a comment:

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