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Old 28 August 2012, 15:04   #1
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Country: USA
Town: Anchorage
Boat name: Big Red
Make: Achilles
Length: 4m +
Engine: Tohatsu 50
Join Date: Nov 2011
Posts: 34
Trim tabs on 18' achilles SU?

Anyone run them on a larger inflatable? I need some for mine and not sure what to go with.
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Old 28 August 2012, 21:03   #2
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Country: Other
Town: Lima-Peru
Boat name: Nautile
Make: Sea Rider Boats
Length: 4m +
Engine: Tohatsu 18 /30 HP
Join Date: Sep 2007
Posts: 1,706
How about placing a proper engine size doel fin instead ?

Happy Sibbing
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Old 28 August 2012, 21:44   #3
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Country: USA
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Make: Achilles
Length: 4m +
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Posts: 34
I can't. The doelfin already cracked my anti cavitation plate. I will never run one again.
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Old 29 August 2012, 06:17   #4
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Country: UK - England
Town: york
Boat name: donut
Make: quicksilver
Length: 3m +
Engine: 9.9hp yamaha OB
Join Date: Aug 2012
Posts: 16
easier to make your own.

2 stainless piano hinge (bout 6")
2 marine alloy plates cut to size
2 stainless rigging turnbuckles
4 U clips and apropriate nuts 'n bolts

you can adjust the to your hearts content then.
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Old 29 August 2012, 07:08   #5
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Country: USA
Town: Northport
Boat name: Zazu
Make: Nautica
Length: 7m +
Engine: outboard
Join Date: Apr 2012
Posts: 37
I run smart tabs on my RIB and they have worked great on a number of boats around here as they are a great company to work with. They are pretty cheap and come in various sizes as well as being easy to use - search 'nauticus smart tabs' and see what you come up with. Currently have the SX series on ours and bought them through I-Boats.

Hope this helps
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Old 29 August 2012, 11:22   #6
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Country: USA
Town: San Diego
Make: zodiac futura mk2
Length: 4m +
Engine: Nissan 40 plus
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Posts: 264
My boat is only 14ft long, but I really like my Smart Tabs. The advantage over the home made version is the automatic actuator. I don't have to adjust the tabs while under way. They are down all the way when starting and they move up as the boat planes and gathers speed. Combined with proper weight distribution the tabs work great.

Doel fins either require a lot of trim adjustment or you end up with the outboard in a setting that is good for starts and not so great for at speed running. I got tired of constantly changing my trim or paying the performance penalty. Those fins also catch kelp like mad! My Doel fin is languishing in the spare parts box and I don't miss it.
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Old 29 August 2012, 13:23   #7
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Country: USA
Town: Anchorage
Boat name: Big Red
Make: Achilles
Length: 4m +
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Thanks guys. I'm gonna look at the smart tabs. Trying to figure out a way to work them around my elephant trunk. How do I decide which ones I need size wise?
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Old 29 August 2012, 17:25   #8
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Country: USA
Town: Anchorage
Boat name: Big Red
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Length: 4m +
Engine: Tohatsu 50
Join Date: Nov 2011
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Gonna give smart tabs a try. Ordering tonight.
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Old 30 August 2012, 10:47   #9
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Be sure to post up some photos of your install and let us know if the tabs worked well for you.
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Old 31 August 2012, 00:16   #10
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Country: USA
Town: Anchorage
Boat name: Big Red
Make: Achilles
Length: 4m +
Engine: Tohatsu 50
Join Date: Nov 2011
Posts: 34
Ordered them. Will be here on the 6th. Hoping it helps with my bowrise issues. I can't wait to get them on and head back out.
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