Daily Archives: Saturday, May 5, 2018

  • Raritan Marine Products Blog: Choosing the Best Bow Thruster For You

    How to Choose the Right Bow Thruster

    Great Points to Keep In Mind When Looking For You New Bow Thruster

    Raritan Engineering Company your Raritan marine products experts would like to share with you these topics we thought would be of interest to you this month regarding how to choose the best bow thruster for your needs.
    Your Raritan marine products suppliers talk about how bow thrusters come in many styles and sizes. Before choosing a thruster for your boat, many factors should be considered with guidance from knowledgeable dealers and installers.
    Consider these factors when choosing the best bow thruster:
    • Strength of winds and currents – The more the wind and water move in your environment, the more power you’ll need from your thruster.
    • The boat’s profile – The higher and longer your boat’s superstructure, the more pressure a thruster will need to push against a cross wind.
    • Bow shape, interior space – The deeper your bow is in the water, and the more interior space is available forward, the more easily a bow thruster can be fitted.
    The example shows the different wind speeds that two different thruster installations can encounter and the increased leverage gained when the thruster is positioned further forward.
    Significantly lower installed cost, more responsive performance, no mounting holes below the waterline, virtually silent operation.

    Don’t Make a Hasty Purchase! Do Your Research

    Browse Raritan marine products here at Raritan Engineering, and see how we always take care of your marine sanitation supply needs.
    Tunnel-style thrusters
    Although occasionally found on smaller boats (less than 30′ in length), through-the-hull or tunnel-style thrusters are usually found on larger boats. 
    First, two large holes must be cut or drilled on either side of the hull below the water line for the tunnel/tube to be passed through the boat. Correct tunnel placement is critical and requires a skilled installer experienced in structural fiberglass repairs, because the area around the tunnel on the hull’s exterior will require fiberglass work, paint and gelcoat. It’s not uncommon for a through-the-hull thruster to experience leakage over time that can void the boat owners hull warranty. 
    Sideshift thrusters
    Sideshift invented the original externally mounted bow thruster. Choosing a Sideshift bow or stern thruster offers numerous advantages over traditional tunnel-style thrusters. Significantly lower installed costs.
    So don’t forget these great points when considering your next bow thruster purchase. 1) Strength of winds and currents – The more the wind and water move in your environment, the more power you’ll need from your thruster;  2) bow shape, interior space – The deeper your bow is in the water, and the more interior space is available forward, the more easily a bow thruster can be fitted;  and 3) the boat’s profile – The higher and longer your boat’s superstructure, the more pressure a thruster will need to push against a cross wind.

    Largest ship ever to set sail

    
<p>The world’s largest ever cruise ship, Symphony of the Seas, is nearly ready for its official maiden voyage on April 7, with Royal Caribbean putting the finishing touches on their new ocean liner before it departs from Barcelona. </p>
<p>The new ship, which will set sail in early April, surpasses her sister <em>Harmony of the Seas </em>in size. </p>
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    The world’s largest ever cruise ship, Symphony of the Seas, is nearly ready for its official maiden voyage on April 7, with Royal Caribbean putting the finishing touches on their new ocean liner before it departs from Barcelona.  The new ship, which will set sail in early April, surpasses her sister Harmony of the Seas in size. Symphony of the Seas was built in the Chantiers de l’Atlantique shipyard in France and is the fourth ship in the Oasis class. 

    The ship cost Royal Caribbean more than AUD $1.7 billion to construct. The 230,000 tonne ship features a large waterslide on the pool deck. With the ship standing more than 18 decks high, the view from the waterslide is bound to be impressive. The outdoor pool area also features a children’s water park.
    Similar to many of Royal Caribbean’s other ships, passengers will be able to surf on the ‘FlowRider’. After all the excitement on the pool deck, you wouldn’t be blamed for taking a nap on one of these comfy deck chairs. There will more than 2100 crew members on each voyage to help keep things running smoothly. There will be at least 20 different dining options for passengers to try out. And while it’s the world’s largest ship for now, Royal Caribbean already has plans to build bigger and better by 2021. 
    Choose your Raritan marine products here and see how we provide you the best products in the marine sanitation industry today.

    Be sure to watch our latest video on Raritan marine products below.  

  • Always Keep These Spare Engine Parts When You’re Cruising

    Dan Dickison
     

    Spare Engine Parts

    Journeying sailors depend on their engines a great deal more than they like to admit. Although the internet has helped close the gap between parts providers and cruising sailors in far corners of the world, the long-term cruiser nevertheless needs to thoroughly consider which spare components and supplies he needs to carry with him.
    Fuel Filters
    We found fuel filter components all over the world, but obtaining the quantity and micron ranking we needed to have was no guarantee. Remember that you have at the very least a couple of filters: a remote main filter in between the tank and the engine, as well as a factory-installed secondary filter on the engine itself.
    Fuel Injectors
    Suggested service intervals for fuel injectors vary by manufacturer, but fuel contamination as well as carbon accumulation is such a typical issue that numerous cruising sailors carry at least one extra injector. If you bring a full set (certainly not cheap) you can still operate your boat while your injectors are being cleaned and serviced. (In the Caribbean, we mailed ours back to the U.S. for servicing).
    Motor Oil
    In case you’re picky about engine oil– and you should be– you might find your preferred oil in some countries. In some cases it is actually available under a different name, and with a little research you could sort this out. Generally speaking, you’ll manage to find diesel engine oil with the specified American Petroleum Institute (API) certification or its equivalent practically everywhere you can buy fuel. For long-term cruising, carry a minimum for six changes, or about 600 hours of engine operation.
    Oil Filters
    Oil filters are another concern. There are a lot of selections of oil filters in the world that it pays to do a little research. In Vanuatu, we discovered Napa filters that corresponded our Volvo filters but cost much less, but, once again, if you go this particular course you really want to make sure you are getting the right filter. The moment you do find the right filters, purchase them. They’re a lot harder to find than engine oil.
    Belts
    You’ll need spare V-belts with regard to you alternator, particularly if it’s the high-output kind. It is nearly impossible to evaluate the quality of a V-belt simply by looking, and when you leave the US, it’s harder to locate the industrial-rated V-belts that you need for high-output alternators. Most belts you locate abroad are fractional-horsepower automotive belts that won’t last long driving a 100-amp alternator, even if you have a dual-belt-drive system (extremely suggested high output alternators).
    Gearbox
    Most likely one of the most neglected component of the power train is the gearbox. Gearbox fluid does not last forever, but how frequently should you change it? A few engine owner’s manuals don’t even give replacement intervals. Mechanics Nick talked with said the oil in a common two-shaft gearbox, such as the Hurth, should be changed at least at every other engine oil change, or 200 hours of operation. This is simply a preliminary list, but it deals with the most common items.
    Raritan is still the most dependable name on the water when it comes to reliability, service and innovation.