Boat lift for 2004 Air Nautique 226

[casey344]

In the next few weeks we will be installing a boat lift for a family with a 2004 Air Nautique 226.

I am looking for the bunk settings and required clearance between the bottom of the boat and bottom of prop and rudder.

Would any of you have this info handy? A picture of your boat on trailer would be great too.

This is a long shot but if any of you know the center of gravity please share it with me.

Thank you.

Casey Nicholls
www.waterjack.net

[SquamInboards]

What kind of lift? Ours is a 5,000lb hydraulic stationary lift from TigerBoatDocks.com which I installed with my friend in an afternoon with little trouble. You can probably get a pretty good idea of the desired width from the trailer dimensions if you have access to that. The draft on these boats is pretty minimal, you can assume approximately 15" past the canoe body draft for the running gear. As far as the LCG, figure approximately 5% aft of amidships. Don't over think it though, most lift manufacturers take all of these pieces of data into account when designing and I would be surprised if a stock 226 did not just "work" on a factory lift that is properly sized for the hydraulic load.

[SquamInboards]

*edit* I see from your sig that you are a WaterJack installer. Do you not have the boat nearby to measure? It seems as a hydraulic floating lift installer you should be able to crack this one, but if the boat is in fact not accessible, here is a page from the 226 Air brochure with some specs.
http://correctcraftfan.com/reference...ex.asp?page=15

[casey344]

Boat Lift

We are the lift supplier/installer. It's a Roto Lift™ 7000 lb. manufacturerd by Hydro Systems Inc. http://www.waterjack.net/products_rotolift.html

They have their boat and trailer in storage and do not have access to it until spring. I'd like to set the bunk width and height to match someones known trailer or boat lift settings. Hoping to have that info when we build it (before we install it) to save a trip back in the spring.

We try to match the CG of the lift to the boats' CG so the minimal downward pressure is spread evenly across all (4) connection points.

[SquamInboards]

Well, manufacturers generally list specs under "light load" conditions per ISO standards I believe which means with 900 lbs. ballast and a 50 gal. fuel tank you can expect the draft of 31" to not be max draft. The beam is 96.5" so somewhere in the realm of 80" for bunk spacing should work. I doubt anyone but correct craft can give you the actual LCG without a lot of calculations and fundamental knowledge of yacht design but for your purposes you can use a rule of thumb from parametric data of similar hulls which is .61*LWL aft of stations zero (where the stem and waterline meet) Say LWL is ~20'10", then .61*250" = 152.5" aft of the intersection of the DWL and STEM = ~LCG. HTH