A 3 hp trolling motor will provide enough power and thrust to get a Jon boat moving upstream but it will not provide speed. Large size outboard powered boat with a motor well as an example.
To get the right amount of horsepower needed to efficiently propel a sailboat divide the displacement of the boat in lb by 550.
Outboard motor size for 12 foot boat. 15hp 25 hp Weight abround 36 kg-52 kg These motors can be heavy to handle but are still considered to be a small outboard motor. This hp range is quite popular for use with inflatable boats 10-14ft aluminium fishing boats 12-16ft flat bottom boats 12-16ft in length fibreglass boats. What size motor for 12 ft V-hull Aluminum boat.
Not knowing the size of the river and what the current is I cant say for sure but most 12 boats do fine with a 6-or-so. But if your boat is rated for it I would go with the 99. A small aluminum will really scoot with a.
Contact us or call us on 01548 852424 and we can talk you through the options. The argument for 2 strokes is as follows. They are usually lighter which is an advantage in terms of power to weight ratio.
Since boats have horsepower and engine weight limits it may mean a more powerful engine can be fitted to the boat. If the plate says a 120 horsepower engine is the largest you should use then. 120 x 11 132 or a 130 horse motor since the horsepower of outboard motors is rated in multiples of 10.
This adds ten percent to the horsepower and will make it easier for your boat. Id save and get at least a 6. A six will give you all the hp you need on the Satilla on either a 12 or 14ft jon unless it is a very heavy boat you weigh a lot and carry a lot.
I personally like the smaller hp motors and if you can find a good used one buy it. 12 Foot aluminum max horsepower. I think the easiest way to tell is to weigh the boat.
A 170 12 footer today is rated at 10hp a 200 is rated at 15. Older boats from say the 60s a 90 is rated at 6 hp a 140 at 30hp. I think weighing is easier than trying to match up size.
However youre not likely going to find an 1125 hp outboard motor so just round up or down to the nearest size. A 10 hp or a 15 hp outboard will better suit you. But the truth is high-octane fuel usually 92 or 93 octane is a waste of money for the majority of outboards.
Most are built to run happily on 87 octane. Some manufacturers such as Tohatsu do recommend midrange fuel usually 89 octane. Check your owners manual and fuel up with what it prescribes.
If youre not sure what length shaft youll need heres how to find out. Measure from the top of the transom to the bottom of the hull this measurement should be taken in the center of the transom for a single engine application. For a short shaft your transom height should measure 15 to 175 inches.
If youre a serious buyer who needs to research some specific model outboards be sure to visit our Engines Parts reviews. Here and on our News pages youll find in-depth information on all sorts of outboard engines ranging from the diminutive Honda BF4 to the largest outboard engine in the world the uber-powerful Seven Marine 627. Smaller 12-14 foot boats can require either a short or long shaft outboard depending on the style of the boat and the brand.
If we run into that scenario I would still show you the different options of motors and go over pricing but I would also ask you to hold. How to pick the right outboard motor size for your sailboat. To get the right amount of horsepower needed to efficiently propel a sailboat divide the displacement of the boat in lb by 550.
You need approximately 1 HP per 550 lb of displacement or 4 HP per 2200 lb. Most sailboats dont need a motor with more than 30 HP. Choosing the right outboard boat motor requires careful consideration of many factors.
The boats size and its intended use are perhaps the most important two. Others considerations when choosing a motor include the type of water on which the boat will be used as well as the experience of the boat owner. Inexperienced boat owners should choose.
Alumacraft 10 Jon boat. Lowes 10 Jon boat. 12 foot Jon boat.
Between 48 and 60 inches. 2 adults with gear. An adult and two children with gear.
Recreation and utility work. Horsepower can range anywhere from 25 hp all the way up to over 1000 hp for certain types of outboard motors. Choosing the appropriate engine size for your boat will make it that much easier for you to enjoy your time out on the water.
Large size outboard powered boat with a motor well as an example. The transom is designed for a 25 shaft. If you want to install a 30 shaft the cut at the clamping board level must be raised by 5.
Thats all very simple. 12172018 102717 AM. Generally short shaft outboards are 15 inches long shaft outboards are 20 inches and extra-long outboards are 25 inches.
Since the length of the shaft of your outboard is associated with the size boat smaller engines will generally have shorter shafts. To get the right size electric outboard motor you need to consider the boat size weightlength boatload your desired speed and the boating environment etc. Generally speaking a 1kw3hp electric outboard motor is enough to provide a satisfying speed and range for tenders dinghies and daysailers up to 15 tons and 6kw10 hp electric outboard motor is for RIBs fishing boats and.
Although a Jon boat can be pushed at speed with a simple trolling motor as the boat gets bigger a trolling motor will tend to lack in the necessary thrust to get the most out of your boat. A 3 hp trolling motor will provide enough power and thrust to get a Jon boat moving upstream but it will not provide speed. Below is a list of the best size hp motors based on Jon boat length.
8 foot 3 8 hp motor. 10 foot 3 10 hp motor. 12 foot 10 15 hp motor.
In other words a 5000 lb boat fully loaded could have a 125 to 200 hp engine. The wide range based on weight alone is due to the variety in design and handling characteristics of a given boat. Yes you can ballpark the size outboard with either the NMMA linear standard or with the rule-of-thumb method but then youll have to play.
May 8 2008. Im thinking about getting a small outboard for my jon boat so we can use it duck hunting this winter and fish some. The boat is 12 ft long and either 30 or 32 wide at the floor.
What size motor do yall think would work well a 5 hp 10 hp or 15 hp. 12 ft aluminum fishing boat 5 horse Nissan outboard runs great uses no gas also battery powered trolling motor 30 lb thrust Trailer has brand new tires and bearings. Boat leaks a little bit of water throughout a whole day but nothing to worry about I would say about 2 gallons at the end of the day.