how I can put my boat more afloat in the stern area?

Question

I have a 21 feet W/A Boston Whaler with a 225 Yamaha outboard, when she is astanding or going slow is too much inside in the water on the stern area, how can I rise the boat (Stern area)

Answer 1

Unless you want to go with a smaller motor I think you are stuck with the squats.. It can he hard to balance a smaller boat with that kind of weight hanging from the transom... Jim

Answer 2

Hello Ernesto:

You have several things you can do...

First, you can move any and all moveable weight in the
the stern to some place near the midpoint of the boat, or
up in the bow. Such things as extra anchors, fuel cans,
shore power cords, all that stuff that finds its way into the stern - move it forward. Now look at your batteries. Can
you install them somewhere forward and run longer cables? If so, do that. Some immediate improvement should be noticed.

Second. Have all passengers sit forward (that is moveable weight also.). Should help improve things a bit.

Third. Install Trim Tabs. One kind of trim tab uses hydraulic rams to adjust the angle of the trim tabs as
you move through the water. Another kind of trim tab
is either fixed - you adjust it until it works right and
then lock it in place. Still another type of trim tab uses
a shock absorber kind of piston with a spring to set
your trim tabl angle. Any one of these will help to bring
the nose of your boat down, but you must change the
angle (reduce it) as you speed up.

Fourth. There is a kind of fin attachment that you can
add onto the lower unit of your outboard motor. These
are fairly inexpensive and help do the same kind of work as Trim Tabs, but are not as effective at doing it.

Fifth. have you checked to see if you have your outboard motor set on the hull at the correct angle? Have you tried adjusting it one way or the other? Can you do this from a button on the dash while in motion? Hmm-m give that a shot and see if it helps.

Sixth. This is a really bad idea, but it might be what you need... Try adding something heavy in the bow like one, two, or three cinder blocks - just for a test. See which one makes the boat operate like you want. Your job then is to either move something from the stern to the bow
that weighs the same amount as the cinder blocks, or
if all else fails install some chunks of lead that heavy up
forward in the anchor locker. Add 100 lbs of chain to your anchor line for example...I hate to carry around a lot of unnecessary weight with fuel costs being so high these days. However, the cinder block experiments will give
you a feel for the amount of weight shift you need to
achieve. Remember, an average man weighs 180 - 220 Pounds...Move him forward.

A large number of boats will lift their bow under acceleration. The interesting point is when does
the bow settle down to a pleasant level? Trim Tabs
make this happen almost at your will. Moving all moveable weight forward will make this happen sooner.

Hope some of this helps you out.

Answer 3

Your Whaler is a light boat that doesn't have a lot of room for putting anything in the boat to correct the problem. Your engine seems pretty big and may be the central problem. Therefore, a smaller engine, which is likely not an option, would help. Getting weight in the front helps. You may try a water ballast bag, like that which is used in wake boarding. Be sure the trim setting on the engine is set correctly. This could cause major bow raising if set improperly. Don't move the gas tanks forward. They are best left in the back. Whatever you do to correct the problem, observe the weight capacity restrictions of the Whaler.

Answer 4

the obvious would be to put weight in the bow to counter the weight in the stern. Another option would be to find a lighter motor. Be advised putting more weight in the boat takes away from the load the boat can carry so don't over load. You could transfer your battery,gas,odds and ends to the bow without a weight penalty. This will require you to get an extension for the battery cables and fuel lines.

Answer 5

A few ideas that may or may not work.

To minimize the problem while the boat is at rest, you could move your fuel cells (not sure if they are glassed in place or portable tanks) forward to help balance the weight on the stern.

While in motion, you can easily fix this problem by installing trim tabs on your boat. They will help you get on plane faster and will allow you to "trim" the bow down while turning lower RPMs on your outboard.

Answer 6

Well, you've got 490 pounds of outboard back aft in a vessel which has a designed weight of 3000 pounds. I think you're going to have to live with the fact that you'll be squatting noticeably as long as you've got that motor. Putting more ballast up forward isn't an option in my opinion because it will make the vessel more unstable, which could have catastrophic consequences in any kind of a foul weather/wind/wave situation.

Sorry

Answer 7

put floation things in the stern. or afd weight to the bow