Re: Trim..... How to use?
Whenever we take off in our inboard we trim all the way down as it gets on plane much faster and not much bow rise. If i leave the trim all the way down once on plane it drives fine but feels very inefficient and like there is a ton of drag. When im on plane i look over the side to see where the spray is coming off the boat, i trim up until its near the back of the boat. If we trim to far it starts bouncing up and down (porpusing i guess its called) but either way you should feel the boat gliding easier thru the water. Good luck
This is pretty much exactly how you want to do it.
You cannot really go by the gage because the drive position is really dependent on speed and load (passenger position etc)
You do it by "feel". If you trim too far bow-Down, you'll feel that "drag" that seems like you're "plowing" with the bow.
If you trim too far drive-out (bow-up) you'll get porpoising and a rough ride. It's different for every boat and load (in the boat)
Ideally, for efficiency, you want to trim the boat for maximum speed at minimum fuel flow (which = minimum drag) It's like an airplane.
If you have a fuel flow gage, you can do it pretty easily. If not, you can learn experimentally to trim for maximum speed at the most "comfortable" cruising speed and power setting.
The trim setting will not "feel right" if it's too high or low and you'll notice other clues like bow height, engine sound, porpoise, vibration, etc. Just moving someone from the back seat to the front seat will change it......
Operate the trim switch with your thumb short "bursts"......that's why they usually put it on the throttle control....
Cheers,
Rick
