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Abt Zero speed?

Discussion in 'Stabs, Tabs & Gyros' started by mike Hartley, Jun 13, 2020.

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  1. mike Hartley, Jun 14, 2020
    #21
    mike Hartley

    mike Hartley Member

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    I wish I could have a better response on how air works...but the fins completely sheared off, negates that being an issue..unfortunately...cheaper solutions are just that sometimes...this was more of a very poor fin design from my view and experience. Time to just find the better solution and company. ABT trac has alot of systems on Lazzaras.....just trying to decide on if the electric system makes better sense.
  2. Capt J, Jun 14, 2020
    #22
    Capt J

    Capt J Senior Member

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    ABT is a solid, long established company. I would reach out to them, talk to their engineers, and see what they say. Also price both systems....as that will come into play.
  3. mike Hartley, Jun 14, 2020
    #23
    mike Hartley

    mike Hartley Member

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    That is the plan...thanks Capt J...
  4. mapism, Jun 14, 2020
    #24
    mapism

    mapism Senior Member

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    Hey, I was only answering a post where the OP said "Im even wondering since we have 4 if thats an option".
    Whether you already knew what I said or not, THAT is not the subject of this thread.
    Besides, your previous suggestion to just "glass the forward holes" was simplistic to say the least.
  5. Pascal, Jun 14, 2020
    #25
    Pascal

    Pascal Senior Member

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    no it s not simplistic. The actuators have to come off and the holes have to be glassed. These gyro gales compressed air stabs are not a good design which why they never caught on. What do you suggest doing? Leaving the old forward fins? There is a reason all boats in that size range use a single pair of fins...

    Bottom line on a boat that size, the best solution is To install conventional hydraulic or electric and yes.... glass the holes.
  6. mike Hartley, Jun 14, 2020
    #26
    mike Hartley

    mike Hartley Member

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    No worries on that..glassing in forward...im not sure the rear 2 are even in correct locations.....but im sure we will find the correct location.
    Appreciate it...
  7. Pascal, Jun 14, 2020
    #27
    Pascal

    Pascal Senior Member

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    I don’t remember the exact layout of the 76. On the 80 and 84 the stabs are under the master floor, about a foot aft of the head
  8. mapism, Jun 14, 2020
    #28
    mapism

    mapism Senior Member

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    What was simplistic in your suggestion of glassing only the forward holes is the obvious implication to use the other two existing holes for a normal 2 fins equipment.
    Which is wrong for all the reasons I already explained.
    But didn't you say that you already knew all that?
  9. mike Hartley, Jun 14, 2020
    #29
    mike Hartley

    mike Hartley Member

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    On the 76 ..they are in master...but further back...im thinking 1/3rd of the way from aft
  10. Pascal, Jun 14, 2020
    #30
    Pascal

    Pascal Senior Member

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    whatever....
  11. Pascal, Jun 14, 2020
    #31
    Pascal

    Pascal Senior Member

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    They could be further aft since it s shorter. Trac will be able to confirm the best location. The biggest issue is having enough height between the hull and the floor which on the 84 prevents using the bigger actuators for zero speed
  12. mike Hartley, Jun 14, 2020
    #32
    mike Hartley

    mike Hartley Member

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    So the 84 doesnt have zero speed?
  13. mike Hartley, Jun 14, 2020
    #33
    mike Hartley

    mike Hartley Member

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    Our aft stabilizers actually sit under the night table on one side and under the L couch on other side of master...
    Zero speed ones are what we are after
  14. Pascal, Jun 15, 2020
    #34
    Pascal

    Pascal Senior Member

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    We don’t. I talked to Trac a few years ago and they said the ones we have could be converted to zero speed but may not be as efficient as with the larger actuators which may not fit under the floor. Turned out most anchorages we use the Exumas are protected enough and we don’t really need zero speed so we didn’t looked into it further
  15. mike Hartley, Jun 15, 2020
    #35
    mike Hartley

    mike Hartley Member

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    Thanks Pascal....ive reached out to ABT...so looking into our options...see what works for us. The electrics seam like a really good way to go ..
  16. Capt J, Jun 15, 2020
    #36
    Capt J

    Capt J Senior Member

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    Given the location of the stabilizers, ask them how much noise they generate during zero speed (at anchor) of the electric stabilizers. If memory serves me right, when people have converted the 76'/80' Lazzara's to different stabilizers, they did away with the rear ones and utilized the location of the forward set.
  17. mike Hartley, Jun 15, 2020
    #37
    mike Hartley

    mike Hartley Member

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    Capt J......yes...one of my questions is where they actually get set...forward...rear..or in different location then where the gyro gales are
  18. Pascal, Jun 15, 2020
    #38
    Pascal

    Pascal Senior Member

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    FFBC69FE-0713-4E1D-9C43-F56BCA03E9AA.png

    FFBC69FE-0713-4E1D-9C43-F56BCA03E9AA.png The installation manual recommends installing them amidship
  19. Capt J, Jun 15, 2020
    #39
    Capt J

    Capt J Senior Member

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    Pascal, yes. On the 76' Lazzara the forward fins are midship, or even aft of midship, and the rear ones are not that far forward from the stern, around 10-15' from the starn is where the aft ones are.
  20. mike Hartley, Jun 15, 2020
    #40
    mike Hartley

    mike Hartley Member

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    Im am told they get moved about 8 ft or so forward of the rear gyro gale ones...so yes seems more amidship...thanks for that Pascal and Capt J...
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