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We choose the best engine for a catamaran.
- 11.03.2024
- Reviews : 0
- Views: 715
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Congratulations! We will fulfill your wishes and together we will try to find the best engine for the Boathouse catamaran. Of course, this question is not very correct to ask, because there are more than 100 models of catamarans, from 3-meter to 9-meter, with a width of 120 cm to 260 cm, but we will understand common features, principles of movement and a few more important points.
We will consider only 4-stroke engines. There are important reasons for this: 2-stroke engines are banned throughout Europe, they are not economical, they pollute the environment, and they cannot tolerate a long run at low revs. In addition, we will not consider Chinese products - very low reliability. Also, you have to imagine that if you buy a good engine, you will not be able to use its resource even during your lifetime. It will be a legacy for the children.))
To begin with, all Boathouse catamarans, with the exception of the Beaver high-speed catamarans, share common features. Despite the size and diameter of the cylinders, in all catamarans, even when fully loaded, the bottom does not touch the surface of the water. Thus, they do not have surfaces for gliding. What does it mean? First, Boathouse catamarans, even the largest ones, have much less drag than a traditional inflatable boat, even the smallest. And secondly, Boathouse catamarans do not have to have a powerful engine at all, because it does not need to be taken out for gliding. It goes in water-emitting mode.
Let's take, for example, an engine with a capacity of 9.9 hp. If we install it on an inflatable boat of medium size from 300 to 400 cm, it will be able to pull two to three people on a glider and will move at a maximum speed of 23-28 km/h. And if you add more weight to the boat, it will move very slowly - 9-12 km/h and very uncomfortable - with the nose stuck up. By the way, a speed of 12 to 20 km/h is completely impossible for inflatable boats. And if this engine is installed on a Boathouse catamaran, for example, also of medium size - Sea Fisher 610. Yes, 610 centimeters in length and 190 cm in width is the average size for a catamaran! If we put 3 people in it, the maximum speed will be 21-23 km/h, if we add one more - 20-21 km/h, and two more (6 people in total) - 17-19 km/h. And move 15 km/h? Easy, average engine speed. Even at the lowest speeds, a six-meter catamaran will move 4-5 km/h. It is clear, what is the fundamental difference?
And if we could save somewhere 1200-1800 dollars? That's the cost of a nice boat with extra equipment or a Sea Fisher 610 catamaran! Very tempting. As? It's very simple: let's try a 6 hp engine. instead of 9.9 hp The difference in cost between them will be approximately the same amount. We put the engine on the same boat first. If you will be alone in the boat, you have a chance to go out on the boat, but with two or more - none. The maximum speed on gliding with one person will be 21-26 km/h, and if it is not possible to go on the gliding – again 9-12 km/h. Therefore, on medium-sized inflatable boats, powerful engines of 9.9 hp, 15, and almost 25 hp are installed. At the same time, the cost of the engine is several times more than the boat itself. What about a catamaran? We put the same 6 hp engine on the Sea Fisher 610. There will be 3-4 people in the catamaran, standard for an average catamaran. The maximum speed is 16-18 km/h. And at medium speeds - 13-15 km/h. Very comfortable speed on the river.
As you can see, some conclusions can already be drawn. If you value comfort, safety, count money and are in no hurry, 4-stroke is your choice. 6 hp engine. If, in addition to everything else, you really like speed, and the cost is not important to you, your choice is more powerful engines - from 9.9 hp. up to 30 hp. But remember the weight of the engine itself, it also needs to be carried. If you have chosen a large catamaran with a diameter of 55cm - 65cm cylinders, then you need to buy an engine with a long deadwood (long leg from 500mm).
And one more unresolved question: should you buy a tiller engine or one with remote control? It's very simple. Engines with a capacity of up to 9.9 hp. with remote control does not exist. If you install a steering console and a remote-controlled engine on the catamaran, you will need a trailer for transportation. Because you will no longer disassemble and assemble it, it is already a boat. And the equipment of a catamaran can already be the same as that of a boat: chairs, lockers, a table, a canopy, even a tent! Very comfortable and you will have full satisfaction from management and ownership. But it costs money. Let's count: a trailer for an average catamaran is about 2,000 dollars, a steering console, d / u cables and other things - 1,000, furniture and a canopy - about 1,000, and an engine with a d / u is more expensive than the same power with a tiller.
We hope that we were able to answer most of your questions with examples. As a conclusion, we can show you two options - economy and luxury with the cost of both. 1) Sea Fisher 610 catamaran with a captain's chair and a Japanese 6 hp engine. - 3000 dollars. 2) Sea Fisher 610 catamaran with remote control, Japanese 30 hp engine, furniture, bulwarks, trailer, canopy - about $10,000. Add an echo sounder, additional equipment, and you will have a cost of 11,000 dollars. As for a boat, it is cheap. By the way, we currently have a promotion "To victory", the prices are very attractive. The choice is yours!
To begin with, all Boathouse catamarans, with the exception of the Beaver high-speed catamarans, share common features. Despite the size and diameter of the cylinders, in all catamarans, even when fully loaded, the bottom does not touch the surface of the water. Thus, they do not have surfaces for gliding. What does it mean? First, Boathouse catamarans, even the largest ones, have much less drag than a traditional inflatable boat, even the smallest. And secondly, Boathouse catamarans do not have to have a powerful engine at all, because it does not need to be taken out for gliding. It goes in water-emitting mode.
And if we could save somewhere 1200-1800 dollars? That's the cost of a nice boat with extra equipment or a Sea Fisher 610 catamaran! Very tempting. As? It's very simple: let's try a 6 hp engine. instead of 9.9 hp The difference in cost between them will be approximately the same amount. We put the engine on the same boat first. If you will be alone in the boat, you have a chance to go out on the boat, but with two or more - none. The maximum speed on gliding with one person will be 21-26 km/h, and if it is not possible to go on the gliding – again 9-12 km/h. Therefore, on medium-sized inflatable boats, powerful engines of 9.9 hp, 15, and almost 25 hp are installed. At the same time, the cost of the engine is several times more than the boat itself. What about a catamaran? We put the same 6 hp engine on the Sea Fisher 610. There will be 3-4 people in the catamaran, standard for an average catamaran. The maximum speed is 16-18 km/h. And at medium speeds - 13-15 km/h. Very comfortable speed on the river.
As you can see, some conclusions can already be drawn. If you value comfort, safety, count money and are in no hurry, 4-stroke is your choice. 6 hp engine. If, in addition to everything else, you really like speed, and the cost is not important to you, your choice is more powerful engines - from 9.9 hp. up to 30 hp. But remember the weight of the engine itself, it also needs to be carried. If you have chosen a large catamaran with a diameter of 55cm - 65cm cylinders, then you need to buy an engine with a long deadwood (long leg from 500mm).
And one more unresolved question: should you buy a tiller engine or one with remote control? It's very simple. Engines with a capacity of up to 9.9 hp. with remote control does not exist. If you install a steering console and a remote-controlled engine on the catamaran, you will need a trailer for transportation. Because you will no longer disassemble and assemble it, it is already a boat. And the equipment of a catamaran can already be the same as that of a boat: chairs, lockers, a table, a canopy, even a tent! Very comfortable and you will have full satisfaction from management and ownership. But it costs money. Let's count: a trailer for an average catamaran is about 2,000 dollars, a steering console, d / u cables and other things - 1,000, furniture and a canopy - about 1,000, and an engine with a d / u is more expensive than the same power with a tiller.