bob said:Dave S said:jg300da said:Ok, it's becoming painfully obvious the more I drive this boat, that it simply does not like a lot of trim tab. If I have the tabs down to get on plane I must immediately raise them or else spend the next 10 minutes constantly tweaking them. I measured them and found they were the same size as the ones on my 300DA. This translates into a major result with the smallest of adjustments. The boat seems to be very stable on plane with both tabs retracted, but when they're both deployed it's almost as if the hull is not allowed to track properly. I'm wondering if anyone else is experiencing this?
The 260DA behaves exactly the same way. I thought I was doing something wrong on my 260DA when I first got it and tried to use the tabs in what I would call a "conventional" way such as you describe on your previous 300DA. There are two things I found over a period of time that is key on these small pocket cruisers. The first is never deploy the tabs to get on plane or it will drive you nuts (which you found out) trying to adjust the tabs. The second thing is trim your drive high enough as you come on plane to get the boat to straighten out as much as it will without the use of tabs. If you don't trim the drive high enough, the boat will lean to starboard more than it should. Once you are on plane with your drive trimmed properly, then use your tabs for the final side to side balancing.
The only exceptions to what I am saying is if you want to cruise at speeds that will take you off plane. In that situation, get up to your desired speed and then without touching the throttle start adjusting the tabs until the bow comes down..................just remember that when it's time to speed up, first retract the tabs fully or you will find the boat trying to lay over badly as you are accelerating.
Could you be a bit more specific about your terminology? When you say to "deploy" the vanes, does that mean the vanes are in the full down position prior to movement? The same goes for" retraction"--does that mean to bring them to the full down or up?
Most sources, including the SeaRay Owner's Manual, recommend putting both trim tabs to the full down position to get up on plane faster, yet you say "never" to use them.
Deploy means to put them down. Retract means to bring them up level so they have no affect at all. And all I can say Bob is you should try it both ways and you decide.
I struggled with the tabs and the drive trim for a long time and got pretty darn frustrated. It was like night and day when I learned the boats handle much better without using the tabs to come on plane. Couple that by trimming the drive up to a point where the boat levels off side to side when under plane and you will see exactly what I mean.