Re: Trim/Tabs
Viper,
Before mounting ANYTHING I would have both the kicker motor and the tabs available at the same time, to check for placement. You don't want them to interfere with each other and you don't want to drill holes in your transom twice! When checking for interference make sure you move both motors through their entire turning arcs, so nothing bangs into anything else when you turn. (nam71, I hope you did this!)
Nauticus has an application chart on their website.
http://www.nauticusinc.com/application_chart.htm
I'm sure Bennet does too.
I don't know what your transom looks like. A flat transom is easiest, but Nauticus has ways to fit tabs to most oddly shaped fiberglass transoms. Check out the website, and they are very helpful via phone.
The best placement for any tabs is as far out to the side as possible, along a flat part of the hull. You want the entire surface area of the tab to be on the same plane as the hull without any chine turbulence interference.
If you had to install the tabs near the centerline of the boat, you would still get some benefits (getting on plane quicker and staying on plane at a lower speed), but you wouldn't gain as much other benefits such as side-to-side stability, and for adjustable tabs like the Bennet, the ability to adjust for the boat's leaning due to weight imbalance or wind or whatever.
Tabman,
I wasn't aware of the ATC system. Thanks for the cruise control analogy. I have Nauticus Smart Tabs because I didn't want to constantly have to futz with tab settings, and to make things easier for family members using the boat (plus they're cheaper!). They are great at what they do, but that ATC system sounds like the best of both worlds.
I think I know where my tax refund is going this spring! I'll transfer the Smart Tabs over to my smaller skiff with a too heavy outboard, and the ATC for my SeaSwirl Striper 2100DC. Can the tabs w/ATC be set down low enough to slow a bit for trolling speeds?
nam71,
I'm just now realizing that it seems quite weird that your 8HP at idle speed pushes your boat as fast as the 115HP. You're right, either that motor is idling too fast, or that's one dang powerful 8HP!