10
Oct
This should flatten your takeoff angle when you punch the throttle s and offer improved visibility forward. The boat reacts by the stern lifting the bow coming down speed increasing and reduced engine laboring.
Correcting for Porpoising Porpoising is a condition more common in faster performance boats.
How to use trim on a boat. This video shows you the basics of boat trim or getting your boat on plane. It walks you through how to use the power trim on your outboard or sterndrive to. Trim is controlled with a toggle button on the control lever or on the dash.
The trim system uses hydraulic rams to change the angle of the outboard motor or sterndrive gearcase and with it the angle of the propeller shaft relative to the boat transom through a range of about 20 degrees. This video walks you through the basics of trim tabs and how to use trim tabs on a boat. Well show you what trim tabs do and how trim tabs work.
Use trim tabs to trim the hull of the boat both up and down and from side to side. When you use the two of them together each controlling their part of the trimming process you maximize your boats performance. Fishing World presents another in a new series of practical video demonstrations - how to trim your boat.
Presented by Honda Marine. Learn how to use the trim on your outboard or sterndrive as a turning tool and youll enhance your boats maneuverability and safety. Trimming while turning can have catastrophic results if you trim the bow down too much causing it to catch and the boat to swap ends or throw your crew across the deck.
You can also use the trim tabs to level out the boat and adjust for list by deploying the trim tab on the side of the list. When adjusting the trim tabs to correct for a list its best to use short bursts of trim then pause to allow the boat to settle so you can judge the effects of your adjustment. Using trim tabs to get on plane is relatively simple.
To correct excessive bow rise deploy your tabs down all the way and bring your engine or drive to its most negative-trim position. This should flatten your takeoff angle when you punch the throttle s and offer improved visibility forward. Trim tabs are used to raise the windward side of the boat blocking the spray that blows over the boat resulting in a drier ride.
Backing Down When operating the boat in reverse both trim. As the boat accelerates push the bow down position of the trim tab control in short bursts. The boat reacts by the stern lifting the bow coming down speed increasing and reduced engine laboring.
If you over-do it and deflect the tabs too far the boat will end up over-trimmed. Trim switch panels with built-in position indicators are a valuable component on any boat. Now Lets Head Out.
Start by putting the engine into forward gear and throttle up steadily to cruising speed noting the reading on your speedometer GPS or tachometer. Using the trim switch slowly tilt up the engine or drive. When the boat is stationary and the shaft is parallel with the surface of the water thats known as neutral trim.
The prop shafts angle is important because it directs the power from the engine. Changing this angle changes what direction the boat is pushed. When the powerhead is as close as possible to the transom the propeller shaft is pointing up which will push down the stern and lift the bow up.
Proper placement of trim tabs will ensure optimum performance. Trim tabs should follow the V at the junction of the transom and the bottom of the boat. For maximum side to side control trim tabs are generally mounted 3-4 from the chine and run towards the keel.
Use boat trim tabs for the best ride on the water. When you press the trim button down the gear case moves closer to the transom until it bottoms out at about negative 6 degrees. Now the prop shaft is aimed down 6 degrees and some of the force lifts the boats sternThe boat hull acts like a teeter.
The more obvious use for the trim function is to protect the lower unit and propeller from hitting bottom in shallow water. You would do this by trimming up in. This spray often is carried aboard by the wind particularly on smaller boats.
Trim tabs are used to raise the windward side of the boat blocking the spray that blows over the boat often resulting in a drier ride for you and your passengers. Correcting for Porpoising Porpoising is a condition more common in faster performance boats. As speed increases the bow repeatedly rises out of the water.
With trim tabs you can now slow the boat down and trim the tabs to the fully down position allowing the boat to be slowed down but keeping the bow down. Now you can see where you are going you can keep a constant speed and you can take the rough seas like a champ. The trim setting of an outboard-powered boat determines how quickly it can get up to speed and how fast and comfortable the boat will cruise.
Most large boats with high-powered outboards come with a powered trim mechanism so the trim can be adjusted while the boat is moving so the boat can get up to speed quickly and then adjust for the perfect ride. You can put one trim tab down and that will make the boat list in one direction. We want to put the list into the current to compensate for the current pushing the boat in a certain direction.
You can also do this a little bit with the engine trim and keeping one engine down. I removed the trim guage on my boat to make room for adding a pressure gauge. I also found the trim gauge to be near useless.
I use a rear view mirror attached to the windshield with a suction cup to glance at the motor from time to time without needing to turn my head around.