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Thread: How does one run their tabs at speed?

  1. #1
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    How does one run their tabs at speed?

    I have a stock 22C with a 330hp? B1 and I usually run it with tabs all the way up and trim to where it does not porpoise. Should I be be running the tabs down a bit and the trim up? I am not talking fast, I am talking 35-40mph cruise at say 3-3200rpm. when in rougher stuff I blip the tabs down some but I really don't use them...should I be using them more other than for stabilizing left to right yawl?
    Nick
    1994 22' Classic-454 B1 Red & white
    1981 13' Whaler sport(original owner)
    South Tampa Bay, FL "May I mamoo dogface to the banana patch?"

  2. #2
    mrfixxall Guest

    fixx

    goin wot all the way up,,45-60 mph about 1/4 tab

  3. #3
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    Ok...what about @ 35?
    Nick
    1994 22' Classic-454 B1 Red & white
    1981 13' Whaler sport(original owner)
    South Tampa Bay, FL "May I mamoo dogface to the banana patch?"

  4. #4
    mrfixxall Guest

    fixx

    [ QUOTE=$originalposter]{$pagetext}[/QUOTE]


    seems i have no trim at all (older volvo with the pin) the slower i go the further in the water the tabs will go,,usually between 25 and 35 they are 1/2 way in the water..im also running a 8 x 12 twin ram sport tab.

  5. #5
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    I have the standard 8 or 9x12 single ram dual switch w/no indicators.
    Nick
    1994 22' Classic-454 B1 Red & white
    1981 13' Whaler sport(original owner)
    South Tampa Bay, FL "May I mamoo dogface to the banana patch?"

  6. #6
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    A little port tab to level the boat when planing or running slower speeds. My pre-planing procedure: drive fully down, all passengers secure and ready, engine hatch latched, gear stowed, lanyard on, life jackets on when deemed necessary, DROP PORT TAB FOR 4-5 SECONDS (dual ram). Normal running I need a little port tab to keep the boat level. Faster runs allow me to raise the tab as I increase drive trim. When running rough water fast I drop both tabs to keep the boat running flat. All with stock Bennett's, no k-planes needed.
    Lake St. Clair, Lake Huron, Lake Erie, Lake Oakland

  7. #7
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    Tabs

    What Carl C said...
    Oledawg
    Raconteur, bon vivant, curmudgeon
    Other duties as assigned


    Lake Tillery, NC
    - Heart of the Uwharrie Mountains

    '88 Donzi Classic 22 "Bad Nuff" - 482 stroker 454, Bravo One, Solas 4 blade, Red/White hull, White Deck ( "drivin" boat )

    '87 Correct Craft Riviera "Oledawg" - 454 PCM ( "cruzin" boat )


    "A man without a boat is a prisoner" - Faronese proverb

  8. #8
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    Yeah I find I need a tad more port tab even in smooth water. I have been playing around with adding more trim and more tab but it seems to X itself out and nothing is gained or loss. In other words I was hoping to find if I trimmed it higher and gave it say 1/3 tab it would do 38mph instead of 36 where it is just trimmed to where it does not porpoise and no tab but NO such luck. I like to run a flat wake but in order to do that at 35-40 she will porpoise so hence why I was messing around. I have always found that a flater wake means optimum efficiency but I guess not in my case. What I mean by a flat wake is look at your wake fully trimmed in it is like a "V" going aft. When you trim up and get the hull as high out of the water as possible it flattens out to more of a "l l" pattern and is smaller.
    Nick
    1994 22' Classic-454 B1 Red & white
    1981 13' Whaler sport(original owner)
    South Tampa Bay, FL "May I mamoo dogface to the banana patch?"

  9. #9
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    Tabs

    What I have found is that the prop makes a huge difference in porpoising. With my 23P labbed prop I get a lot of "sketchynes", ie porpoising, but on the other end, with my 27P Mirage all is totally stable regardless of the speed. I am running a 26P Mirage + now which seems to get the most speed with the most stability. I only use the tabs when getting up to plane and when cruising at 35 - 50, after that, no tabs...
    Oledawg
    Raconteur, bon vivant, curmudgeon
    Other duties as assigned


    Lake Tillery, NC
    - Heart of the Uwharrie Mountains

    '88 Donzi Classic 22 "Bad Nuff" - 482 stroker 454, Bravo One, Solas 4 blade, Red/White hull, White Deck ( "drivin" boat )

    '87 Correct Craft Riviera "Oledawg" - 454 PCM ( "cruzin" boat )


    "A man without a boat is a prisoner" - Faronese proverb

  10. #10
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    I don't need the tabs to get on step. With 4 people and a full tank she comes on plane without even kicking in the 4 barrels....floored I think I am on plane in about 50'. This boat is an animal and hence my other post that she might not be stock hp or my prop might not be big enough.
    Nick
    1994 22' Classic-454 B1 Red & white
    1981 13' Whaler sport(original owner)
    South Tampa Bay, FL "May I mamoo dogface to the banana patch?"

  11. #11
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    I don't need the tabs to get on step. With 4 people and a full tank she comes on plane without even kicking in the 4 barrels....floored I think I am on plane in about 50'. This boat is an animal and hence my other post that she might not be stock hp or my prop might not be big enough.
    Nick
    1994 22' Classic-454 B1 Red & white
    1981 13' Whaler sport(original owner)
    South Tampa Bay, FL "May I mamoo dogface to the banana patch?"

  12. #12
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    Before every race, we would adjust the tabs to be absolutely parrallel with the bottom of the hull.
    After that, the throttle man would never touch it again.
    GeneD
    007
    Formerly of Melbourne, Florida
    Permanent Resident of St. Petersburg, Florida
    1966 Classic 18-2+3

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