Yacht Engines

Yacht Engines


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Yacht Engines

Yacht Engines

A yacht is a pleasure boat and is used for commercial tourism or for private purposes. Yachts are designed for cruising in marinas, inland waters, and areas close to the coast. It is generally not designed to face the ravages of the ocean.

For the yachts to cruise around it needs engines for propulsion. The propulsion engines are usually diesel engines and are mounted on both side of the keel, on the port and starboard sides. There are many makes of yacht diesel engines in service, to name a few, they are Mercury, M.D.U., Caterpillar, MAN, Volvo Penta, Hyundai.

Yacht engines are four stroke engines, i.e. it requires four strokes to complete one cycle resulting in two crank revolutions. The piston has two strokes down wards and two strokes upwards, i.e. the reciprocator motion of the piston is converted to rotary motion at the crank (crankshaft). A rotary motion is transmitted to the gear box and through the propeller shaft the rotary motion is further transmitted to the propeller.


 Yacht Engines

Yacht engine speed ranges vary from medium to high speed. The medium speed engines range is from 300 - 800 revolutions per minute (RPM) and high-speed engines range from 800 -2,000 RPM. A reduction gear is engaged to reduce the engine RPM to an acceptable limit at the propeller. Propellers are generally more efficient at lower RPM. By and large, the reduction gear is fitted aft of the yacht engine but in some cases, it is fitted forward of the yacht engine. The reduction gear enables to reduce the RPM of the engine to suit the propeller.

Yacht diesel engines come in two configurations, i.e. in line or I engine and VEE or V engine. In an I engine the piston moves upwards and downwards in vertical direction. However, in a V engine the configuration the pistons is in angular direction and it moves in an upwards and downwards. . The number of units varies from 3 cylinders to generally 12 cylinders. Typically there are two yacht diesel engines, one on the port side and the other on the starboard side, thus there are two propellers. The horsepower of the engines varies from 200 per engine to 1,000 per engine.

To boost the power of a Yacht engines are turbocharged. Blowers are provided to supply air to the turbochargers. I engines have 1 blower whereas in V engines there are 2 blowers fitted

The engines are designed to provide optimum speed to the yacht. The smaller yachts- 30 feet length has higher cruising speeds as compared to 140 feet yacht. Depending on the design, the top speed of a small yacht is generally around 40 knots. And the cruising speed of around 30 knots. However, the top speed of a big yacht is around 22 knots with a cruising speed of around 15 knots.

Constellation Marine Surveyors have 20+ years of average experience in yacht inspections, pre-purchase surveys and overall condition surveys. We are available 24X7.

By: Engr. Ramesh Krishnan

Qualfied and Impartial Client Representation for Yacht Inspections, Yacht Condition Appraisals aim is to deliver an honest, intelligent and technical report as guidance to Yacht buyers, and lenders. We have a large team of experienced, qualified professional yacht surveyors, Engineers, Architects who offer worldwide service as well as valuable insight for yachts purchase working with owner or yacht buyers to suit requirement, timelines and reporting prompt requirements. Constellation Yacht Surveyors offer bespoke surveying requirements for high value super, Yacht, and pleasure crafts, with an informed and technical submission that your dream boat is a sensible financial Yacht Registration, Boat Structures And Engines, Yacht Inspection, yacht surveyors dubai, yacht surveyors abu dhabi, survey companies, survey report, boat surveyor, boat inspection, yacht services in dubai, yacht services llc, yacht dubai marina, yacht rental dubai, yacht for sale, yacht master, yacht rental abu dhabi, yacht dubai, yacht abu dhabi, a yacht sailing, yacht bay, yacht bay marina, yacht broker, yacht club, yacht charter, yacht club dubai, yacht charter dubai, yacht crew jobs, yacht captain jobs, yacht cruise dubai, yacht dubai marina, yacht dubai rent, yacht deals dubai, yacht dubai price, yacht engineer jobs, yacht engineer, yacht for sale dubai, yacht for rent, yachting, yacht hire, yacht in dubai, yacht jobs, yacht jobs dubai, yacht jobs in uae, yacht jobs middle east, yacht jobs in abu dhabi, yacht marina, yacht price, luxury yacht dubai, luxury yacht abu dhabi, marine yacht surveyors, yacht Yacht Condition Appraisals surveyor qualifications, yacht quantity surveyor, global yacht & ship surveyors, yacht paint surveyors, luxurious yachts, luxury yacht price, luxury yacht cost, survey, survivor, marine surveyor, surveying engineering, Qualfied and Impartial Client Representation for Yacht Inspections, Yacht Management, Yacht Marine & Yacht to Yacht buyers, and lenders. We have a large team of experienced, qualified professional yacht surveyors, Engineers, Architects who offer offer building yachts for sale in Dubai. yacht buyers to suit requirement, timelines and reporting prompt requirements. Constellation Yacht Surveyors offer bespoke surveying requirements for high value super, Yacht, and pleasure crafts, with an informed and technical submission that your dream boat is a Yacht Condition Appraisals. Yacht Registration, Boat Structures And Engines, Yacht Inspection, yacht surveyors dubai, yacht surveyors abu dhabi, survey companies, survey report, survey, survivor, marine surveyor, surveying engineering, Qualfied and Impartial Yacht Inspections, Yacht Management, Yacht Sale & Purchase Inspections technical report as guidance to Yacht buyers, and lenders. We have a large team of experienced, qualified professional yacht surveyors, Engineers, Architects who offer worldwide service as well as valuable insight for yachts purchase and registration needed in UAE. buyers to suit requirement, timelines and and technical submission that your dream boat is a sensible financial proposition or a tub conditions and economies. Yacht Registration, Boat Structures And Engines, Yacht Inspection, yacht surveyors dubai, yacht surveyors engineering,