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 June 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Technology

LiveCom Selects iDirect Evolution to Enable Global Expansion

iDirect Asia Pte Ltd today announced that LiveCom Limited (“LiveCom”), a Hong Kong based ISP, has selected Evolution as the platform to help enterprise and government

FLNG Prelude: A New Dawn in the Age of Maritime & Energy

Longer than four football fields, as big as six Nimitz-class aircraft carriers and almost as tall as the Taipei 101 skyscraper, Royal Dutch Shell PLC is hoping that its record-setting,

Desulfurization of Exhaust Gases in Shipping

Are shipowners prepared to enter SECA zones?   Due to existing regulations on air exhaust emissions from the International Maritime Organization (IMO), and with

Marine Propulsion

Desulfurization of Exhaust Gases in Shipping

Are shipowners prepared to enter SECA zones?   Due to existing regulations on air exhaust emissions from the International Maritime Organization (IMO), and with

Cummins Reports Revenue Jump in Q2 2014

Cummins Inc. reported its results for the second quarter of 2014. According to the report, second quarter revenue of $4.8 billion increased 7 percent from the same quarter in 2013.

Master Marine Delivers Z Drive Towboat

Master Marine, Inc. delivered its first 2,000 hp Z Drive inland river towboat last month. The towboat represents the first vessel (Entech Design) of this series by the yard.

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Standards Navigation Offshore Oil Port Authority Salvage Ship Repair Sonar Winch
rss | archive | history | articles | privacy | terms and conditions | 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: 0.1630 sec (6 req/sec)