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Uptime for Maximum Downtime

By Chad Elmore, Managing Editor, Diesel Progress Magazine

There are very few diesel engine applications for which downtime is tolerated, much less enjoyed. At every step in a machine’s product development cycle, engineers work to ensure maximum availability regardless of conditions.  However, in the marine pleasure craft market, customers expect uptime so they can maximize their downtime.

It is for those applications that Scania USA recently introduced a range of diesel engines that meet marine engine regulations such as U.S. EPA Tier 3 and European Union RCD 2 (Recreational Craft Directive). Available now, the engines are intended for vessels such as trawler yachts, which might take a family across the Atlantic Ocean for an extended vacation, or boats used for tournament fishing in the Gulf of Mexico.

“The expectation for marine engines is for them to be ready 24/7, dusk to dawn,” said Al Alcalá, sales manager, Scania USA Marine, San Antonio, Texas. "In pleasure craft, they may not use the boat every day, but it needs to be ready to go when they want to use it.”

Already used globally in commercial, military and recreational boats, Scania said its diesel engines are designed to withstand harsh marine conditions while providing maximum uptime, and the compact, modular and lightweight construction of the powerplants make installation and maintenance a breeze, Scania said. 

“The recreational marine requirements are similar to a Navy or Coast Guard boat,” said Alcalá, “The expectation that it starts every time is the same, although the duty cycle in pleasure craft may be easier because the total accumulated hours will be less. We have customers who are tournament fishermen,and they'll use their vessels more times per year.  These new engines will be a perfect fit for them as well as everyone else in the pleasure craft market. The hours and the duty cycle will be well within the envelope of the engine’s capability, and the reliability and robustness built into the engine for commercial customers will meet every expectation of the pleasure craft operator."

The V8 Scania DI16 diesel engine is rated 1150 hp at 2300 rpm. It is now emissions compliant to U.S. EPA Tier 3 for pleasure craft.

Scania DI13 13L inline six-cylinder and DI16  16L V8 pleasure craft engines range from 700 to 900 hp and 1000 to 1150 hp, respectively. The new engines represent existing power nodes that Scania sells to commercial customers.

The engines are built on a compacted graphite iron (CGI) engine block. The company said the result is a lightweight powerplant that when combined with its proprietary Engine Management System (EMS), wastegate turbocharger and common rail extra high-pressure injection system (XPI), provides high torque and fuel efficiency along with lower noise. 



While the high-horsepower pleasure craft engine line may be new to Scania U.S.A., it’s not new for the engine manufacturer on a global scale. Emissions regulations kept the company’s recreational engine offering at 800 hp in the United States.  Reaching the higher horsepower nodes was only a matter of certifying the engines it offered for recreational applications in other markets to meet the U.S. EPA regulations. 

For many years, Australian luxury yacht manufacturer Maritimo has used Scania’s high-output six-cylinder and V8 marine diesel engines on its performance-focused sport yachts. The company’s R Performance Edition vessels were designed for high speed and to provide an extended range of entertainment and living features. The Maritimo X50R is powered by twin Tier 3 800 hp DI13 Scania engines for “breathtaking responsiveness and exhilarating performance,” according to the Gold Coast-based boat builder, while the X60R gets a Tier 3 Scania DI16 rated 1150 hp. Previously, yachts sold to customers in the United States could not be equipped with those engines.

“When we aggregated that engine demand globally,” said Alcalá, “along with the demand that we see in the U.S., it helped make the case that it was time to bring these engines here and get them certified for the Tier 3 recreational market."



Along with uptime, the engine company’s market research showed that pleasure craft customers are interested in parts availability — which the company said falls in line with its 98% parts availability within 24 hours in North America- reduced noise level and no exhaust smoke. Customers don’t want to be relaxing out on their yacht with exhaust smoke swirling around them.

“Pleasure craft customers have different expectations for who shows up on their vessel to perform maintenance,” said Alcalá. “Cleanliness, as well as timeliness, are extremely important. We, as well as our distributors, understand that.”

Yacht owners will also benefit from Smart Support by Scania, its intelligent and predictive system of providing support and service for customers in North America, said the company. Smart Support is comprised of a network of around 300 specialized service workshops and close to 2000 service points worldwide.

“Our distributors and their dealers already know these types of customers, and how to take care of them, said Alcalá. “With these new engines, what they have now is the ability to offer a higher power node than they have had in the past."