Doel-Fins WARNING

Doel-Fins WARNING

Post by al.. » Sat, 23 Mar 1996 04:00:00


                                            WARNING

I have a warning to add on Doel-Fins or for any type of fin for that matter.

When your boat is up on plane Doel-Fins or any other type work great
up get you up on plane faster than no fin. You are also able to stay up
on plane at lower RPM.

The problem is that is a low speed below plan or close to it they tend to
make the boat lean to one side or the other. On some boats the lean
is so pronounced the boat looks like it will roll over. I do not know
why this happends but I have seen it on many boats including mine
that has a Doel-Fin.

Since I know the danger I never try to turn at speeds just above or
below planing speed since I know my boat will tilt heavily to one side.

Be Carefull!

Alan

 
 
 

Doel-Fins WARNING

Post by Dave Bro » Mon, 25 Mar 1996 04:00:00


 al> WARNING
 al> I have a warning to add on Doel-Fins or for any type of fin for that
 al> matter.  
 al> When your boat is up on plane Doel-Fins or any other type work great
 al> up get you up on plane faster than no fin. You are also able to stay
 al> up on plane at lower RPM.
 al> The problem is that is a low speed below plan or close to it they tend
 al> to make the boat lean to one side or the other. On some boats the lean
 al> is so pronounced the boat looks like it will roll over. I do not know
 al> why this happends but I have seen it on many boats including mine
 al> that has a Doel-Fin.  
 al> Since I know the danger I never try to turn at speeds just above or  
 al> below planing speed since I know my boat will tilt heavily to one
 al> side.  Be Carefull!

This usually happens for two reasons - Either the boat has a hook in the
hull, or the trim setting is too far in. This symptom is something I warn all
my customers about who insist on using them.

Regards,

          Dave Brown
          Brown's Marina Ltd

... Dead atheist:  All dressed up & no place to go.
--
|Fidonet:  Dave Brown 1:249/107

|
| Standard disclaimer: The views of this user are strictly his own.

 
 
 

Doel-Fins WARNING

Post by Harry Krau » Tue, 26 Mar 1996 04:00:00


:
:  al> WARNING
:  al> I have a warning to add on Doel-Fins or for any type of fin for that
:  al> matter.  
:  al> When your boat is up on plane Doel-Fins or any other type work great
:  al> up get you up on plane faster than no fin. You are also able to stay
:  al> up on plane at lower RPM.

Hmm. Doesn't happen to me. My boat does list slightly to port, just like
most deep vee hulls with 100+ hp engines. It's caused by prop torque and
is only noticeable at speed. Happened before and after install of fin.

--
- - - - - - - - - - - - - - - - - - - - - - - - -
Harry Krause  Krause & Associates, Inc.
Post Office Box 7575 Jacksonville, Florida 32244


 
 
 

Doel-Fins WARNING

Post by Dan Dobs » Sun, 31 Mar 1996 04:00:00

Quote:

>                                            WARNING
>I have a warning to add on Doel-Fins or for any type of fin for that matter.
>When your boat is up on plane Doel-Fins or any other type work great
>up get you up on plane faster than no fin. You are also able to stay up
>on plane at lower RPM.
>The problem is that is a low speed below plan or close to it they tend to
>make the boat lean to one side or the other. On some boats the lean
>is so pronounced the boat looks like it will roll over. I do not know
>why this happends but I have seen it on many boats including mine
>that has a Doel-Fin.
>Since I know the danger I never try to turn at speeds just above or
>below planing speed since I know my boat will tilt heavily to one side.
>Be Carefull!
>Alan

        My 17' Winner does the same thing.  I put up with it because the
fin really helps me get up on plane faster, especially if I've got
passengers and am pulling a skier or tube.  As soon as I feel it start
to lean and pull on the wheel, I trim out and it quits.  The problem
is that you have the outdrive trimmed under to far for the speed your
at.  When it starts to lean, trim out immediately and you will level
off and pick up speed faster as well.

Dan Dobson,  Louisville Ky.  Home of Beautiful Women,
Great Bourbon, Fast Horses & The Louisville Slugger.
"Try something new everyday, I've already forgotten
more than I'll ever learn!"

 
 
 

Doel-Fins WARNING

Post by Tom Frase » Tue, 02 Apr 1996 04:00:00

Quote:


> >                                            WARNING
> >I have a warning to add on Doel-Fins or for any type of fin for that matter.
>  On some boats the lean
> >is so pronounced the boat looks like it will roll over. I do not know
> >why this happends but I have seen it on many boats including mine
> >that has a Doel-Fin.

>  My 17' Winner does the same thing.  I put up with it because the
> fin really helps me get up on plane faster...[snippage]

Dan,

I also have a 17' Winner and noticed that same effect.  So thats why it
does that!   My solution to quick planing was to loose the four-banger
engine and drop in a 4.3L V6.  I was debating whether or not to keep the
fin.  Now I am definitely getting rid of it.  My question is what kind of
17' Winner do you have, and have you had any other problems?  I haven't
owned this boat very long and have already made a major modification.

TF