22 rows Use this Boat Horsepower Calculator to estimate the power required to efficiently move your. We mentioned earlier that size of battery you are going to purchase would have to depend on how much power your boat needs.
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.
How much horsepower do i need for my boat. When youre trying to determine the amount of horsepower you need its essential to consider the weight of the boat. The boat horsepower-to-weight ratio is simple to calculate and can be expressed in horsepower per pound or pounds per horsepower. Lets say for example your boat weighs 5000 pounds and it has a 300-horsepower engine.
22 rows Use this Boat Horsepower Calculator to estimate the power required to efficiently move your. For a modified-V hull Im assuming 16 degrees or less. Total Weight 30 HP required to drive the boat at 25 mph at a 75 throttle setting.
For a deep-V hull. Total Weight 25 HP required to drive the boat at 25 mph at a 75 throttle setting. Using these formulas Toy Boat 2.
So how much horsepower does you boat really need. 115hp has become the starting point for horsepower and can be a very suitable boat for lots of boaters. 150-175hp choice is a great all-around pontoon and can truly be a versatile do it all boat.
Horsepower only has to do with engine weight. If you put too big an engine on a boat you throw the flotation off Last the manufacturers set the Coast Guard capacity maximum which they reach using an accepted formula and they also determine the horsepower since they know how much engine weight will still allow their boat to float level. A boat should have a minimum of 70 horsepower to pull a skier.
The size weight and design of the boat will play a big part in how much horsepower you will need. Since there is a lot more that goes into the horsepower discussion keep reading for the rest of the key details. In order for your boat to pull a water skier behind you you need speed.
It is very simple. Take your boat weight and divide by 50. So a 1000 lb boat boat motor gear passengers flat bottom or still water would take 20HP to plane.
If your boat with all gear is heavier it will take more HP to plane. If your boat has a v-hull it will take more HP to plane. Torque Horsepower x 5252RPM rotations per minute and by following this formula you can see how a 50 HP outboard engine behind a pontoon is going to have far less torque than the 380 HP Ilmor marine performance engine seen in a MasterCraft XStar.
To be able to select the right battery for your boat and your needs you also have to make sure that you determine the right size of battery you need. We mentioned earlier that size of battery you are going to purchase would have to depend on how much power your boat needs. It means the larger your boat is and the larger its electrical load it has the larger size of power cell it needs to keep up with its demand.
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. Also since 1 RPM x 1 ft lb x 5252 1 hp and the square root of 5252 is 725 then 725 ft lbs 725 RPM 1 hp. So if the RPM is 50 times as much at 3625 RPM at 72550 lbs 145 lbs you still have 1 hp.
A diesel boat engine might run at 3625 RPM and if it had 100 hp at that speed it would have 725 ft lb of torque. Boating by yourself you could get about the same performance from a 100 or 110 horsepower motor as you do from a 120 horsepower motor and save fuel. Writer Bio Will Charpentier is a writer who specializes in boating and maritime subjects.
Make sure you test drive the boat to see if the price-point outboard will suit your needs. For example a typical 17 aluminum fishing package can have a Maximum Capacity of 90 hp but you can. FormulaBoats recommends that you have between 25 and 45 pounds of weight for each unit of horsepower.
How much thrust should a canoe trolling motor have. It depends on the weight of your canoe. For a lighter 600-pound canoe we recommend a minimum of a 30 lb thrust.
If your canoe is in the 1000-pound range consider getting a 55 lb motor. In both cases you need only a single 12V battery. How many amps does a 55 lb thrust trolling motor draw.
How much horsepower do I need for my boat. The rule of thumb is based on weight alone and says you should have between 40 and 25 pounds of weight for each horsepower. For example a 5000-pound boat could have an engine with between 125 and 200 horsepower.
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. The amount of power you need is related to the hull displacement of your boat.
I like to use the simple formula. HP displacement lb 550. So 1 HP for every 550 lb displacement and 4 hp per 2200 lb.
Here HP is the amount of horsepower you need to reach the maximum hull speed. Outboard Horsepower Capacity. Compute the Factor Boat Length x transom width.
If Factor is to the nearest integer 0-35. For flat bottom hard chine boats with a factor of 52 or less reduce HP one capacity increment. If the Factor is over 525 and the boat has.
It used to be 16 years old I did my license when I was 17. I took a girlfriend to a boat show one year and they were doing the license testing there. She said shed always wanted to get the boat licence but never got around to it.
I told her to do it now. She said but I.