Yanmar: Single-minded Power

Friday, April 05, 2002
The age-old argument among mariners concerning twin-engine versus single-screw boats has taken a new twist. Recent results comparing a single-engine Yanmar 6LP-series diesel sterndrive to twin gas outboards gave the diesel engine advantages in nearly every category. Producing 300 crankshaft hp at 3,800 rpm, the 6-cylinder, 6LP-STZE is one of Yanmar Diesel's most popular engines among boatbuilders. Its light weight and small footprint have made it the choice for many gas-to-diesel and diesel-to-diesel repowering projects as well. Equipped with a Mercruiser Bravo Three sterndrive, the combination weighs only 1,100 pounds and, on a 31-ft. open console fishing boat, burns less than 11 gph at nearly 35 mph. That's over three miles per gallon. According to Richard Mastry of Mastry Engine Center, the engine will outperform twin gas outboards, hands-down. "Tests were run comparing a single Yanmar 6LP against twin 250-hp EFI gas outboards on the identical boat. The Yanmar engine produced a 40% increase in cruising range over the outboards. That's important, especially for offshore fishermen." According to Yanmar Diesel's Greg Eck, a single 6LP-STZE offers other advantages over outboards besides fuel economy. "Since the diesel engine is mounted below decks rather than hanging off the transom with a bracket, the boat's center of gravity is lower," said Eck. "This has definite advantages in boat handling, especially in rough waters." Eck further explained that the diesel has additional advantages over outboards when used on the tender for larger yachts. "It is a matter of safety," said Eck. "If there is an emergency aboard the yacht, a crewmember can quickly deploy the tender and head to shore to pick up parts, medical supplies or additional personnel. The diesel engine's economy provides the extended range necessary for the tender to make the trip quickly without running out of fuel." Yanmar Diesel, addition to the 6LP-STZE, manufactures other marine engines from 9.1 to 500 hp. Circle 4 on Reader Service Card www.marinenewsinfo.com
Maritime Reporter March 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Technology

Russian Navy Take Over Crimea Combat Dolphins

The combat dolphin program in the Crimean city of Sevastopol will be preserved and redirected towards the interests of the Russian Navy, according to a report by official news agency RIA Novosti.

Transas to Participate in ETC-2014

Transas will take part in the ETC-2014 – The second International Forum on Seafarers’ Education, Training and Crewing. The Forum which consists of the Conference

World Petroleum Congress to be held in Moscow

Deputy Prime Minister of the Russian Federation, Arkady Dvorkovich, has confirmed that the 21st World Petroleum Congress will be held in Moscow from 15 – 19 June 2014.

Marine Propulsion

RS at SEA JAPAN 2014

Russian Maritime Register of Shipping (RS) was the only Russian company to take part in SEA JAPAN 2014 exhibition and conference – one of the major exhibitions of the maritime industry.

Havyard to Build Hybrid Battery Arctic PSV

Norway's Havyard says it has signed a contract for the construction of a Havyard 833 WE ICE platform supply vessel with Fafnir Offshore HF. The vessel is to be

GE Gas Turbines Power USS America

GE Marine reports that the United States Navy’s future USS America (LHA 6) amphibious assault ship recently completed successful acceptance sea trials powered by two GE LM2500+ marine gas turbines.

 
 
Maritime Careers / Shipboard Positions Maritime Standards Naval Architecture Offshore Oil Pipelines Port Authority Salvage Ship Simulators Shipbuilding / Vessel Construction Sonar
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1840 sec (5 req/sec)