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Author Topic:   trim tabs
rapidrobert posted 10-15-2002 09:51 PM ET (US)   Profile for rapidrobert   Send Email to rapidrobert  
Anyone had experience with trim tabs on whalers? I'm thinking about installing on a 210 ventura. The factory option is 9" x 9" Bennett's. Seems small for a 21 foot boat.
kingfish posted 10-15-2002 11:15 PM ET (US)     Profile for kingfish  Send Email to kingfish     
Lots of previous discussion on this topic and lots of contributors here have tabs. Try searching for earlier threads in this forum as well as Repairs/Mods.
tully_mars posted 10-16-2002 10:18 AM ET (US)     Profile for tully_mars  Send Email to tully_mars     
The 9x9 Bennett tabs are what came factory installed on my 21' Outrage, and they do the job well. Should be all you will need.

Tully Mars

Backlash posted 10-16-2002 11:58 AM ET (US)     Profile for Backlash  Send Email to Backlash     
I agree...the 9x9's are too small IMO. Whaler takes the conservative approach due to liability issues. I'd go with 9x12's or 12x12's
David Ratusnik posted 10-16-2002 01:26 PM ET (US)     Profile for David Ratusnik  Send Email to David Ratusnik     
Call Tom at Bennett in Delray Beach FLA. He can advise you. I'm running 10"x12" newish design Bat Wings on my 22' OR. Great action for hole shot, port vs starboard lean in the wind, plus help a ton going into a heavy chop. Service support is first rate. Recently my port rocker switch took a dump. Tom replaced it under warranty in two (2) days to my mailbox. Back in business Good luck David
reelescape1 posted 10-16-2002 03:53 PM ET (US)     Profile for reelescape1  Send Email to reelescape1     
I put the Bennett bat wings on my 22' OR also and love them!!! Bennett offers the very best service and warranty of anyone!! I've got some pics of mine mounted I can mail.Here's Tom's e-mail
rapidrobert posted 10-23-2002 06:16 PM ET (US)     Profile for rapidrobert  Send Email to rapidrobert     
Went with Lenco 9 x 18 on my 210 Ventura in spite of hearing all the glowing reports of service from Bennett. Keep up the good work Tabman! The electrics offered too many advantages IMO for me to pass up. Top speed is now 50+ mph compared to 47/48 mph without tabs,and ride is flat and level. 210 Ventura power is 225 Yamaha OX66.
OutrageMan posted 10-23-2002 06:56 PM ET (US)     Profile for OutrageMan  Send Email to OutrageMan     
I put Lencos on my 24' Bertram Moppie. I am truely amazed. Absolutely instant response, and no pumps to fail or be in the way.


kingfish posted 10-24-2002 09:00 AM ET (US)     Profile for kingfish  Send Email to kingfish     
Congratulations, rapidrobert, I am pleased to hear both that trim tabs are filling the bill, and that you settled with Lencos - I have Lenco 12x12s on my OR22 and couldn't be happier if I was in my right mind. I am puzzled about gaining top end speed though; I get higher top end by raising the tabs out of the water and trimming the motor up, reducing wetted surface.


Nice to hear from another happy Lenco customer - I had begun to feel a little self-conscious with all the marketing Bennett gets around here...


rapidrobert posted 10-24-2002 01:02 PM ET (US)     Profile for rapidrobert  Send Email to rapidrobert     
Thanks for the comments kingfish. I think I would have similar results on the top speed with less weight in the rear. I will do some more testing later. On the day I tested I had a lot of fuel and a full 20 gallons of fresh water on board.
David Ratusnik posted 10-24-2002 02:49 PM ET (US)     Profile for David Ratusnik  Send Email to David Ratusnik     
Rapid- The tabs add drag. They don't increase top end speed. Congrats on your new tabs. David
rapidrobert posted 10-24-2002 06:02 PM ET (US)     Profile for rapidrobert  Send Email to rapidrobert     
I agree about the drag and the fact that tabs under a lot of circumstances do not increase top end speed, but IMO if they improve boat attitude they can, and do, increase top end because the small added drag can reduce a bigger drag elswhere on the boat. Ever see an offshore race boat without tabs?
David Ratusnik posted 10-24-2002 06:35 PM ET (US)     Profile for David Ratusnik  Send Email to David Ratusnik     
Offshore race boats are fitted with tabs in order to adjust for chop etc just like Whalers. They do not add to top end speed at WOT on glass. David
rapidrobert posted 10-24-2002 06:57 PM ET (US)     Profile for rapidrobert  Send Email to rapidrobert     
Of course they don't increase top end speed on glass with a perfectly balanced boat. They do add the ability, however, to trim a boat to compensate for fuel consumption, chop, etc., to keep it running at the "design" attitude for minimum drag and maximum speed under variable conditions.
David Ratusnik posted 10-24-2002 08:53 PM ET (US)     Profile for David Ratusnik  Send Email to David Ratusnik     
Rapid- If you think your boat goes faster with tabs than without -- go for it. Makes no sense. See Kingfish comment. David

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