Outboard engines with wings on cavitation plate (e.g. Doel-Fin)?

Outboard engines with wings on cavitation plate (e.g. Doel-Fin)?

Post by Bruce Jil » Sat, 03 Jun 1995 04:00:00


I've seen hydrofoils for sale that are made to attach to the cavitation
plate of outboard engines.  Are these effective, and if so
why don't outboard manufacturers just make the cavitation plates
wing-like to begin with?
 
 
 

Outboard engines with wings on cavitation plate (e.g. Doel-Fin)?

Post by E:WINSOCKKA9QSPOOLMAI » Tue, 06 Jun 1995 04:00:00

The reason manufacturers do not fit them is they are not needed.
Unless!!! you have an underpowered & or badly balanced outfit,
something they do not wish to encourage.-- Safe Sailing,
Dave
+-------------------------------------------------------------------------+


 
 
 

Outboard engines with wings on cavitation plate (e.g. Doel-Fin)?

Post by Pete » Tue, 06 Jun 1995 04:00:00

Jeez, I just picked up this thread but...

Uh, so if my boat didn't come with trim tabs I don't need them? In other
words, all manufacturers engineer their designs for the best possible
performance at all times, right?

Peter

Quote:

>The reason manufacturers do not fit them is they are not needed.
>Unless!!! you have an underpowered & or badly balanced outfit,
>something they do not wish to encourage.-- Safe Sailing,
>Dave
>+-------------------------------------------------------------------------+



 
 
 

Outboard engines with wings on cavitation plate (e.g. Doel-Fin)?

Post by Mark Craft » Wed, 07 Jun 1995 04:00:00


Quote:
> The reason manufacturers do not fit them is they are not needed.
> Unless!!! you have an underpowered & or badly balanced outfit,
> something they do not wish to encourage.-- Safe Sailing,

They may not be needed, but it certainly improves the rough water
handling in my Grady.

        Mark

<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>
Mark Crafts                                                   Melbourne FL

      "You only live once, but if you do it right, once is enough."

 
 
 

Outboard engines with wings on cavitation plate (e.g. Doel-Fin)?

Post by Duncan MacGreg » Fri, 09 Jun 1995 04:00:00


Quote:

>I've seen hydrofoils for sale that are made to attach to the cavitation
>plate of outboard engines.  Are these effective, and if so
>why don't outboard manufacturers just make the cavitation plates
>wing-like to begin with?

They are effective in the water. They make the motors more awkward to handle
on land.
 
 
 

Outboard engines with wings on cavitation plate (e.g. Doel-Fin)?

Post by acssys.. » Sat, 10 Jun 1995 04:00:00


Quote:

>> The reason manufacturers do not fit them is they are not needed.

                                                        ^^^^^^^^^^

Take a look at older Mercrsier outdrive anti-cavitation plates and then
take a look at todays Mercrusier outdrive anti-cavitation plates. you
should notice that they are considerably larger today than before. At
least that's what I've noticed. Older outdrives only had one plate,
newer ones have two. Haven't ffigured out exactly why unless it helps on
hole shot. The upper plate is completly out of the water on plane... I
think.  

dsc

Dudley Cornman
Systems Programmer
Academic Computing Services - EKU

Quote:
> They may not be needed, but it certainly improves the rough water
> handling in my Grady.

Like putting shock absorbers on it...

dsc

Dudley Cornman
Systems Programmer
Academic Computing Services - EKU