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Author Topic:   Hydrofoil fin for 190 Nantucket

Livingwater posted 06-13-2006 01:37 PM ET (US)
My 190 Nantucket powered by a 150XL takes about 25 MPH to get up on plane in calm waters. I was toying with the idea to install a hydrofoil fin on the outboard to help my boat level out at a slower speed.
Info, recommendations and guidance from my forum friends will be greatly appreciated.

Tom W Clark posted 06-13-2006 01:45 PM ET (US)
Try a 17" pitch Mercury Revolution 4 or Offshore/Vensura propeller. This will reduce your minimum planing speed.
Perry posted 06-13-2006 01:46 PM ET (US)
I have never been a fan of hydrofoils on outboards. Boston Whaler now offers trim tabs as an option on the 190 Outrage. This would probably bee a better idea although a bit more expensive. You may want to try a 4 blade prop. This will also allow slower planning speeds.
Perry posted 06-13-2006 01:47 PM ET (US)
Damn Tom, I must have been typing when you made your post.
highanddry posted 06-13-2006 03:03 PM ET (US)
While I do not yet have tabs nor have I been on a Nantucket with tabs my friends with a very similar Trophy installed tabs and it reduced their planning speed down to rediculous slow speeds and I have confirmed that. Most vee hulled boats need tabs to help on the slow end when that is important.
My boat will plane slower than your indicating though it does begin to mush and require throttle adjustment below 20 MPH. At 25 we are on solid plane. In fact, 24ish is a good slow, on plane, cruise speed for us getting right at 6 MPG. Hmmmm.
Trim the engine in all the way at slow speeds.
Yes, I have been told that prop will help. I think though that tabs would be a better investment to begin with, they are on my get list. I think they will help trim the boat at slow speeds and help compensate for people and dogs not staying where I put them.

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Author	Topic: Hydrofoil fin for 190 Nantucket
Livingwater	posted 06-13-2006 01:37 PM ET (US) My 190 Nantucket powered by a 150XL takes about 25 MPH to get up on plane in calm waters. I was toying with the idea to install a hydrofoil fin on the outboard to help my boat level out at a slower speed. Info, recommendations and guidance from my forum friends will be greatly appreciated.
Tom W Clark	posted 06-13-2006 01:45 PM ET (US) Try a 17" pitch Mercury Revolution 4 or Offshore/Vensura propeller. This will reduce your minimum planing speed.
Perry	posted 06-13-2006 01:46 PM ET (US) I have never been a fan of hydrofoils on outboards. Boston Whaler now offers trim tabs as an option on the 190 Outrage. This would probably bee a better idea although a bit more expensive. You may want to try a 4 blade prop. This will also allow slower planning speeds.
Perry	posted 06-13-2006 01:47 PM ET (US) Damn Tom, I must have been typing when you made your post.
highanddry	posted 06-13-2006 03:03 PM ET (US) While I do not yet have tabs nor have I been on a Nantucket with tabs my friends with a very similar Trophy installed tabs and it reduced their planning speed down to rediculous slow speeds and I have confirmed that. Most vee hulled boats need tabs to help on the slow end when that is important. My boat will plane slower than your indicating though it does begin to mush and require throttle adjustment below 20 MPH. At 25 we are on solid plane. In fact, 24ish is a good slow, on plane, cruise speed for us getting right at 6 MPG. Hmmmm. Trim the engine in all the way at slow speeds. Yes, I have been told that prop will help. I think though that tabs would be a better investment to begin with, they are on my get list. I think they will help trim the boat at slow speeds and help compensate for people and dogs not staying where I put them.