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  #1  
Old 07-10-2005, 01:27 PM
fishstu fishstu is offline
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Join Date: Feb 2004
Location: New Haven, CT
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Default min planing speed

What min planing speed can be obtained with a 20ft seacraft ?
Mine with a 150 merc EFI seems to have around a 20 mph + - 2 mph min planing speed.

Many thanks for any feed back
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  #2  
Old 07-10-2005, 07:01 PM
Briguy Briguy is offline
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Location: Sarasota, Fl
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Default Re: min planing speed

With tabs down I can get down to 12 knots with my 23'.
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  #3  
Old 07-11-2005, 12:53 AM
nestorpr nestorpr is offline
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Location: Kendale Lakes, FL
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Default Re: min planing speed

Mine doesn't have tabs and with the outdrive properly trimmed I also plane at about 20 mph.
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  #4  
Old 07-11-2005, 01:59 AM
Fr. Frank Fr. Frank is offline
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Location: Shalimar, Florida
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Default Re: min planing speed

I have a 20' Seafari OB model with a 150 Merc. I need 20 mph to plane with the engine trimmed all the way down, and I can then back down to 18 mph before falling off plane. I've found that about 22-23 mph trimmed down is the best for choppy water.
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Common Sense is learning from your mistakes. Wisdom is learning from the other guy's mistakes.

Fr. Frank says:
Jesus liked fishing, too. He even walked on water to get to the boat!

Currently without a SeaCraft
(2) Pompano 12' fishing kayaks
'73 Cobia 18' prototype "Casting Skiff", 70hp Mercury
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  #5  
Old 07-13-2005, 10:52 PM
peterb peterb is offline
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Join Date: Dec 2004
Location: Montclair, Sandy Hook & Highbar Harbor, NJ
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Default Re: min planing speed

I have a 23' w/twin engines and Bennett trim tabs. I, too, can plane at around 13 mph.

This is my first boat with trim tabs. They are one of the greatest inventions of all time. What a difference.
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  #6  
Old 07-14-2005, 02:49 PM
HatTrick HatTrick is offline
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Join Date: Jan 2005
Location: Westport. MA
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Default Re: min planing speed

What are the best trim tabs for a 20' SeaCraft and where is the best place to get them?
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  #7  
Old 07-15-2005, 12:38 AM
NoBones NoBones is offline
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Join Date: Apr 2004
Location: Area 442 Somewhere in Florida
Posts: 3,699
Default Re: min planing speed

My SF 20 has 24 inch Bennetts on them with a 200HP Merc.,
21 inch LaserII prop. The big tabs help when you have a heavy load. (IE: me and my 3 250lb buddies) I can plane in
short order, and balance the boat no matter where
any one is standing. Use the racing style switch (4 button)
They have never failed me on the 2 boats I have. Good luck!!
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  #8  
Old 07-18-2005, 09:30 AM
RS RS is offline
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Join Date: Jul 2003
Location: Narragansett Bay, RI
Posts: 399
Default Re: min planing speed

I had the Bennet M120 sport tabs that worked great. After a transom rebuild I went with Lenco Troll n Tabs using a 12x12 tab. That also works well. The boat is very responsive and I get the bow down at about 14 mph.
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