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DAVIS INSTRUMENTS
The Original Doel-Fin Hydrofoil

$35.99

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In stock online.
Model # 351221 | Mfg # 440

Product Description

Get your boat on a plane quickly by increasing the lift generated by the engine. They also allow you to go more slowly while still remaining on a plane, so fuel consumption is decreased.

  • The injection-molded tenite polypropylene fins install easily on the cavitation plate of most outboards from 5 hp and up
  • Includes Mounting hardware
  • Lifetime warranty

Specs

The Original Doel-Fin Hydrofoil

Color Black
Compatibility Doel-Fin
Type Hydrofoils

REVIEW SNAPSHOT®

by PowerReviews
Davis Instruments The Original Doel-Fin Hydrofoil
 
4.3

(based on 6 reviews)

Ratings Distribution

  • 5 Stars

     

    (5)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

83%

of respondents would recommend this to a friend.

Pros

  • Easy to use (3)

Cons

No Cons

Best Uses

  • Boating / sailing (3)
    • Was this a gift?:
    • No (3)

Reviewed by 6 customers

Displaying reviews 1-6

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(1 of 1 customers found this review helpful)

 
5.0

really works!

By richie

from long island ny

About Me Advanced

Verified Buyer

Pros

  • Easy To Use

Cons

    Best Uses

    • Boating

    Comments about Davis Instruments The Original Doel-Fin Hydrofoil:

    I had one on my old boat years ago and forgot how good they are. I would put it on a boat even if I did not have problems. it works that good

    • Was this a gift?:
    • No

    (1 of 1 customers found this review helpful)

     
    1.0

    Didn't fit

    By Pete

    from Ny

    About Me Casual/ Recreational

    Verified Buyer

    Pros

    • Easy Storage
    • Easy To Use
    • Waterproof

    Cons

    • Flimsy

    Best Uses

    • Boating
    • Canoeing

    Comments about Davis Instruments The Original Doel-Fin Hydrofoil:

    It didn't fit on my.LEHR 5hp propane outboard

    One side did fit the other didn't I don't know why

    • Was this a gift?:
    • No
     
    5.0

    What a difference with my boat motors performance!!!

    By Finny

    from Carlsbad, California

    About Me Casual/ Recreational

    Verified Buyer

    Pros

    • Easy To Use

    Cons

      Best Uses

      • Boating

      Comments about Davis Instruments The Original Doel-Fin Hydrofoil:

      I easily installed the Doel-Fin on my boat motor and less than 30 minutes later I was back on the water. Now my boat gets out of the hole more quickly and gets up to plane. I couldn't be more happy!!!

      • Was this a gift?:
      • No

      (2 of 2 customers found this review helpful)

       
      5.0

      worth the time and money to install

      By Captain Bob McDaniel

      from Quepos, Costa Rica

      About Me Professional

      Verified Buyer

      Pros

      • Good Performance
      • Reliable
      • Weather Resistant

      Cons

        Best Uses

        • Large Boats

        Comments about Davis Instruments The Original Doel-Fin Hydrofoil:

        This is the second set of Doel fins I have used. Had them on older 140 hp twin suzukis, when I put new 140 hp motors on the 29' dive boat with same props saw slow hole shot and having to work to keep it on plane. Put the new set on which took about 30 minutes in the water in the marina, and immediantly noted a improved hole shot under heavy load and planning out at lower rpms and steady . these work and work well on twin motors.

        (4 of 4 customers found this review helpful)

         
        5.0

        Performance as advertised

        By Jersey Bounce

        from Georgian Bay on Lake Huron

        About Me Advanced

        Verified Buyer

        Pros

        • Good Performance
        • Quiet
        • Reliable
        • Weather Resistant
        • Worked Effectively

        Cons

          Best Uses

          • 15 25 Hp Motors
          • Large Boats
          • Small Boats

          Comments about Davis Instruments The Original Doel-Fin Hydrofoil:

          At a friend's suggestion, I installed the hydro foils on both 15 and 25 HP outboards on 14 foot and 16 foot aluminum boats to lower the bow when driving alone in the rear of the boat. The hydrofoils solved the high bow problem, dramatically shortened the time and distance required to plane the boats and at a very low cost. Installation did take more than the 15 minutes suggested in the literature but was time well spent! Am purchasing two more hydrofoils for friends who are having the same issue I used to have.

          (11 of 13 customers found this review helpful)

           
          5.0

          Out of the whole on full plain, awesome!

          By Capt. Gary

          from Galveston Bay and Gulf of Mexico, Texas

          About Me Professional

          Verified Reviewer

          Pros

            Cons

              Best Uses

              • 24' Center Console

              Comments about Davis Instruments The Original Doel-Fin Hydrofoil:

              They were installed on both my 150 hp Merc's and the performance was awesome. Out of the whole on full plain in a shot. Allowed the boat to maintain plain at a slower speed which was amazing. Found to be less cost than going with four bladed prop in this application.

              Displaying reviews 1-6

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