Prop's performance & trim tabs - need help
Ok all, here is the lay of the land.
I have a 23' 1972 SeaCraft w/twin Yamaha 200 HP OX66's. The motors are on a full flotation bracket. Also, I have Bennet 12 x 12 trim tabs.
The boat is definately stern heavy.
I have two sets of Yamaha SWS series props (21 x 14.75 and 19 x 15.25)
The engines are mounted at the mid level on the bracket (I have had them at the top level and bottom level as well)
I have two problems.
First, the boat rides (particularly into a head sea) ass heavy. I used to have another 23 SeaCraft w/twin Yamaha 150's (no bracket) and it was a better riding boat into a head sea. That setp had 17" SWS props.
Second, the prop's definately kick up some water when the boat is on plane.
Using the 21" props I get better WOT speed (up to mid 50's) and slightly better fuel economy. The 19" props probably give me a slightly better ride in snotty condition (because they enable me to plane at a slightly slower speed).
Any ideas?
I have been thinking about the following
Purchase and install the drop fin verion of the Bennet trim tabs.
Looking for another set of props (4 blade) that raise the stern a little.
Any specific feedback would be greatly appreciated.
Thanks,
Peter
|