Ricardo has long been engaged in the marine sector and fully understands the challenges of increasingly strict emissions legislation, the imperative of improving ship energy efficiency and reducing fuel consumption, while also minimizing total construction and operating costs. Ricardo supports the marine industry in meeting these challenges by offering its expertise in clean technology, energy storage solutions, hybrid and electric propulsion systems, fuel efficient engines, next generation gearbox and driveline technology, and electronic & telematics systems.

Ricardo is your ideal partner from emissions reduction, energy efficiency and fuel consumption optimization, to complete propulsion system specification and development:

* Complete ship architecture simulation for maximum fuel efficiency through optimization of energy management strategy and evaluation of energy storage options based on intended operating conditions and duty cycle
* Advanced engine design and development
* World-class expertise in exhaust aftertreatment and emissions control technologies including selective catalytic reduction and exhaust gas recirculation, and waste heat recovery
* Gearbox and driveline system design and development with high quality in-house niche manufacturing capacity
* Design and development of hybrid propulsion systems
* Energy storage system design including battery packs, high speed flywheels and hydraulic energy storage concepts
* Expertise in control systems and electrical architecture integration
* Design of control architecture for fuel cell systems
* Proven intelligent transport concepts adaptable for marine use including weather based routing, autonomous ship management, collision avoidance navigation, and prognostics & condition monitoring

Key benefits of the Ricardo service:

* One-stop shop for marine engineering support
* Cost savings built-in from the concept stage through access to deep technical expertise and use of advanced CAE tools such as the proven and powerful Ricardo software products WAVE, VECTIS and SABR
* World-renowned expertise in diesel and gas engine design and development.
* Innovative and imaginative engineering solutions for all types of large commercial vessel

Ricardo has been active in the development and optimization of marine propulsion engines throughout its history. We fully understand the marine industry’s needs for exceptional robustness and reliability and also how these are increasingly compounded by the imperative to reduce fuel consumption and meet emissions regulations while also optimizing whole life operating costs.

An unparalleled portfolio of marine propulsion engine engineering services:

* Complete new engine design and development programmes including large and medium speed diesel and gas engines
* Engine upgrades for performance and/or emissions improvements
* Calibration (IMO Tier 2 and Tier 3) and classification support
* Unique and high value technical solutions to help any engine or ship builder fulfil their propulsion system requirements specifications
* Strategy maps and market investigations
* Manufacturing set-up and sourcing support
* Supplier qualification, selection and management
* One of the world’s leading large engine design teams with in-depth knowledge of the latest combustion, aftertreatment and control technologies
* Cost, design and performance benchmarking
* Failure investigations and problem resolution of existing propulsion systems

marine engineering

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The company Weems & Plath is situated in the Chesapeake Bay city of Annapolis, Maryland, where it was founded many years ago by Captain Phillip Van Horn Weems. Capt. Weems was a foremost navigator of his era, teaching at the US Naval Academy and later from a navigation school he founded. Charles Lindberg studied with Weems before attempting his solo trans-Atlantic flight. Admiral Byrd, a classmate of Weems at the Naval Academy, came to him for instruction before setting out for the North Pole. A century earlier, Carl Plath’s company in Hamburg, Germany, began producing professional sextants and magnetic compasses. The business developed the first gyrocompass installed on a commercial vessel in the year 1913. In 1928, Captain Weems became the North American distributor of C.Plath instruments, and thus the alliance of the two names into Weems & Plath. The business remains in our day a chief manufacturer of precision marine navigation instruments. The original C.Plath corporation eventually merged with two other marine instrument companies, Sperry Marine and Decca.

Today, Weems & Plath offers a extensive assortment of high-quality nautical instruments for the boat, home, or office. The wide-ranging collection consists of everything from conventional ship’s clocks and barometers, to waterproof binoculars, to nautical oil lamps, to ship’s bells… even lifeboat compasses. The assortment also contains a considerable collection of conventional precision navigation instruments (dividers, parallel rules, plotters, etc.) and an assortment of other nautical products. Beautiful weather instruments for the home or backyard include All Conant Custom that are handcrafted using the finest materials including solid brass, stainless steel and copper housings, optical-quality glass and precision components. Many items also can be personalized, such as the chart weights, and make terrific presents for navigator in your household or workplace.

About Weems Navigation

In today’s time of the satellite Global Positioning System, it is a trouble-free task to determine one’s position very accurately. A small, low-priced GPS receiver determines the accurate latitude and longitude in a heartbeat. Even less than century past, however, navigation was far more uncertain and time consuming. Whereas the marine sextant, sea-going clock, and complex tables and calculations worked well enough for ships but not so for the newest technological innovation of the time, the airplane. As an answer for navigation at the speed of airplane flight, Weems developed an innovative system that required two shots of the sun with a modified sextant, a precise time reading, and referencing tables in his Line of Positions book with pre-calculated positions. Precise time was key, however, and even a few seconds variance could be the difference between life and death. To facilitate time accuracy, Weems invented the “Second Setting Watch”, a watch that assisted navigators synchronize unerringly to Greenwich Mean Time (GMT). Aviators were then able to determine their location in a few moments without the need to do time-consuming, difficult mathematical computations.


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Electrical connectors heat shrink butt connectors. Heat shrink butt connectors are used to splice two wires together with a water proof weather proof seal. The use a heat shrink butt connector you will first figure out what size wire you are splicing together. The heat shrink butt connectors come in different sizes for the size wire you need to splice together.

The first heat shrink butt connector is white and it is for size 24 to 22 gauge wire. The next is red 22 to 18 gauge wire. Then blue for 16 to 14 gauge wire. next is yellow for 12 to 10 gauge wire. Then the colors start all over again like red for 8 gauge and blue for 6 gauge and yellow for 4 gauge. Now that you know what size wires you will be splicing together you can choose the proper heat shrink butt connector for the splice. Lets say that we have 14 gauge wires that we need to splice together, we will use the blue 16 to 14 gauge heat shrink butt splice. First we will strip the wire ends about 3/16″. We will then take one end and insert it into one of the holes on the heat shrink butt splice. Next we will use our crimpers to crimp the heat shrink butt splice where we inserted the wire. Make sure to use the insulated spot on your crimpers so that you do not tear or rip the heat shrink insulation on the connector. After we have our wire crimped into the butt splice we will then repeat the process with the other wire into the other end of the butt splice. Now that we have the wires spliced together by the heat shrink butt connector we are ready to create the seal. To seal the heat shrink you need to apply heat to the connector.

You can use a lighter or a mini torch or a heat gun. I prefer using a mini butane torch to seal heat shrink. Run the heat along the heat shrink butt connector and you will see the insulation start to shrink around the connector. Run the heat back and forth uniformilly until the heat shrink on the connector contracts fully and you may see the sealant ooze out from the ends. You will then know that connection is done. Allow it to cool for a few seconds and thats it, you now have a water proof splice using a heat shrink butt connector. There are many brands of heat shrink butt connectors. I recommend using one that is made in the USA and is UL listed. Heat shrink butt connectors can be very expensive, but if you search the internet you will be able to find them at a reasonable price. The prices range from 20 dollars per 100 to as much as 100 dollars per 100. I have noticed if you purchase them from a place that sell marine wiring products they will inflate the price highly, so stay away from marine stores.

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