riverbud55 said:
Did some research when I built my jack plate and found that people had problems with more/excessive bow rise on small tiller boats when they added a jack plate with much of any setback,,, moving the motor back moves it further from the center of the boat putting more load on the rear, then add that your body has to reach further back to reach the tiller just adds more weight to the rear, also depending on how long the handle is on your tiller and your boats seat location may make a little harder to reach,,,,,, may be bs but made sense at the time and still does to a point, ,,, any thoughts?????
here is what I did on my G3 with a 15'' transom with a long shaft e tec
CMC PT35 or PT130 will help drastically with this. It really serves several purposes. One, and it's intended purpose, is to add tilt and trim. The secondary effect is that it moves the motor back 5.5". Normally with the setback, yes, you'll see some more bow rise. But the ability to trim solves this; as you can move the trim pin on your motor to it's lowest setting (some guys remove it totally) and then that gives you more "tuck" (negative trim), which helps get the boat on plane quickly. Once it's planed, trim it out until speed increase stops or porpoising starts. When trimming out with the CMC (or panther, etc), as the CMC is lifting, it's also moving the motor upward a little, which kind of gives it a jack plate effect. It is not at all uncommon, with a typical duck boat around here (1542-1548-1553 with 25hp) to gain between 3 and 8 mph with the CMC alone as long as it's set up correctly.
I have run a manual jack plate before on my other boat; and that is one of the things I too noticed. Lot more bow rise but I don't have the ability to trim while under way. If you have trim, that problem disappears for the most part.
My next boat mod will be trim...whether it be a CMC or Panter or whatever brand, or it be a new motor. It will have trim/tilt eventually. I'm getting too old and lazy to manually tilt that big heavy 4 stroke motor. I can kick it in reverse with the tilt unlocked and that works but only if I have the space. Sometimes theres areas where I can't do that, like, say, a stump or log is right behind the motor which would hit while the boat is backing up slightly.
I saw one, don't remember the brand, but it had tilt/trim AND a jackplate built together, made for smaller motors. That peaked my interest until I saw the price tag :O
