A marine engine could help you make a boat that can sail faster and better in rough seas, or that can take on new challenges like a new propeller.
But they also can be expensive and take time to install.
Here’s how to get started with a marine-powered boat.
Make sure you have a good understanding of marine engines.
“They’re really a very modern part of the engine industry,” says Richard Gurney, vice president of engineering at Engine Builder.
“It’s a very efficient way of moving power through a boat.”
That means the motor that powers a marine turbine needs to be a large, heavy, reliable unit.
And it also means that the size of the unit and the type of motor required to power it can vary greatly from boat to boat.
“The main engines on most boats are basically diesel motors, but there are a number of marine engine types,” Gurnay says.
The biggest marine engine manufacturers include the US company Gurnez, which makes the Gurnesons’ turbine engines; the Japanese firm Dynaflow, which manufactures their propellers; and the Italian company Maserati, which produces the propellers and rotors for their boat engines. “
A marine engine is basically a larger, more powerful unit that can handle more power than the motor,” he adds.
The biggest marine engine manufacturers include the US company Gurnez, which makes the Gurnesons’ turbine engines; the Japanese firm Dynaflow, which manufactures their propellers; and the Italian company Maserati, which produces the propellers and rotors for their boat engines.
Gurnenys turbine engine is a 5-inch diameter unit, with a range of up to 4,000 hp, and can run on a range from a diesel engine to a hybrid or electric motor.
A small number of boats in the US and Europe also use marine engines to power propellers.
“This is a technology that’s been around for a long time,” Grainy says.
In the past, marine engines were used in some small, small boats.
“But then, in the 1970s, it was brought back into the mainstream,” Growey says.
It’s still used in small, medium and large boats, as well as some big offshore vessels.
A lot of boats have them installed in their engines.
Most of these smaller, smaller boats use diesel engines.
A few big boats use electric motors.
The difference between the two is that the smaller diesel engines are generally larger and heavier than the larger ones.
But because electric motors run on less electricity than diesel engines, they have a lot more torque, Gurneys says.
A large, heavier marine engine can run a motor with a higher torque output than a smaller, lighter engine.
A marine turbine can be a more powerful motor than a diesel motor, but it has less torque.
“So it’s a little bit more expensive than a hybrid, but much more efficient,” Gullys says of marine turbines.
And, as a result, most marine engines require less maintenance than a battery-powered diesel engine.
“If you’ve got a marine motor, it’s not going to run out of juice very fast,” Gollys says, because it has a much smaller, more durable motor.
For most marine-engine installation, Growy recommends a diesel-powered marine engine that has been tested for durability and longevity.
“In the early days, it didn’t take much maintenance,” Gllys says — you can even replace the motor every six months or so, depending on the size and weight of the vessel.
If you’re planning to install marine engines in a boat, he says, you should also look into using marine engines with a large propeller instead of a small one, and using marine motors in conjunction with propellers on larger vessels.
If the propeller isn’t large enough for a marine power system, you can purchase a marine battery-electric converter, which is typically more efficient than the hybrid battery that comes with most marine turbines, Gullies says.
You can also install a larger propeller on an older boat that has a diesel generator installed, and use that as a starter.
Gulley says he would recommend using a marine generator with a motor rated at 1,000 horsepower, but that can be tricky to install on larger boats.
The smaller, heavier diesel engines on small boats can also be a good option for boats that are small, light and can’t handle the larger propellers used on larger engines.
The larger diesel motors are also lighter than the smaller ones, and they’re usually cheaper.
But if you want a bigger diesel engine, the smaller marine engines can be more expensive.
“I think if you’re getting a lot of use out of a diesel, you might be better off buying a large diesel engine,” Gaughy says, since the large diesel engines typically have a higher exhaust pressure, and a larger exhaust volume, so they can push more air into the engine.
For larger engines, he recommends installing a smaller marine turbine.
For example, a 15-inch marine engine with a 4,500-hp motor can