Daily Archives: Thursday, August 24, 2017

  • TruDesign Experts Discuss the Possible Return of Radio Navigation & Tips to Stay Safe Boating at Night

    Your TruDesign Professionals Ideas About the Benefits of Radio Navigation

    Raritan Engineering your TruDesigndistributors would like to share with you these topics we thought would be of interest to you this month regarding the possible return of radio navigation.

    Your TruDesign suppliers talks about how way back in the 1980s, when I was a young naval officer, the Global Positioning System (GPS) was still in its experimental stage.

    Using a global network of terrestrial radio beacons, Loran-C gave navigators aboard ships and aircraft the ability to get a fix on their location within a few hundred feet by using the difference in the timing of two or more beaco n signals.

    An evolution of World War II technology (LORAN was an acronym for long-range navigation), Loran-C was considered obsolete by many once GPS was widely available.

    The trial of an enhanced Loran service called eLoran that was accurate within 20 meters (65 feet) also wrapped up during this time.

    Over the past few years, the US Coast Guard has reportedmultiple episodes of GPS jamming at non-US ports, including an incident reported to the Coast Guard’s Navigation Center this June that occurred on the Black Sea.

    And in the event of a war, it’s possible that an adversary could take out GPS satellites with anti-satellite weapons or some sort of cyber-attack on a satellite network.

    Your TruDesign Specialists Give Further Information About the Usefulness of Navigating By Radio

    We are proud to be your TruDesign supplier. Remember to always come to us here at R aritan Engineering, where we always take care of your marine sanitation supply needs.

    The risk to GPS has caused a number of countries to take a second look at terrestrial radio navigation. Today there’s broad support worldwide for a new radio navigation network based on more modern technology-and the system taking the early lead for that role is eLoran.


    The eLoran system gets its enhanced accuracy in much the same way that enhanced GPS gear squeezes greater accuracy out of the civil GPS signal for tasks such as surveying and mapping-by usingdifferential correction.

    Because it uses low-frequency radio waves (in the 90 to 110 kHz range), it’s not likely that you’ll see eLoran integrated into your smartphone.

    [eLoran] is a deterrent to deliberate jamming or spoofing, since such hostile activities can be rendered ineffective, saidBrad Parkinson, the retired US Air Force colonel who managed the original GPS development program, acc ording to Reuters.

    And the South Korean government already has pushed forward plans to have three active eLoran beacons by 2019-that’s enough to provide accurate fixes for all shipping in the region should North Korea (or anyone else) attempt to block GPS again.

    Boating After Dark? Here Are The Rules For Navigation Lights In Missouri | Boating

    Turn on your navigation lights at sunset! That’s the reminder the Missouri State Patrol is issuing to boaters.

    Troopers on Lake of the Ozarks have reported several encounters with vessels failing to properly display navigation lights since Memorial Day weekend.

    The required navigation lights differ depending on the type and size of your vessel. State law requires boat operators to display the required navigation lights between sunset and sunrise.

    There are various combinations of lights which meet the requirements by state law.

    Navigation on the water at night is unique, and the Patrol points out that lights are imperative to prevent boat accidents. Light requirements are designed so other boaters are able to see one another and determine the direction they are traveling, but navigation lights will not necessarily help a boater see better at night.

    If you will be out on the water after dark, check your navigation lights before you leave the dock or ramp, Captain Turner reminded. When boaters understand and obey the law, and vessels are in good operating order, everyone’s experience on the water becomes safer.

    Remember to order your TruDesign parts hereat Raritan Engineering, We are your #1 expert in marine sanitation supply needs.

    via Boa ting After Dark? Here Are The Rules For Navigation Lights In Missouri

    via Bringing Back Radio Navigation

    The post TruDesign Experts Discuss the Possible Return of Radio Navigation & Tips to Stay Safe Boating at Night appeared first on .

  • Boat Cleaning Products Suppliers Share Pointers On Navigating Around Coral & Keeping Our Coral Reefs Safe

    Photo courtesy Mahina Expeditions, www.mahina.com

    Your Boat Cleaning Products Distributors Talk About the Best Way to Avoid Hitting Coral Reefs

    Raritan Engineeringyour boat cleaning products experts would like to share with you this week some great pointers on how to easily navigate around coral reefs.
    For the average cruiser, the half-day passages pose a special challenge. The temptation is to leave early and knock out all the miles in daylight, but as the crew races against time, exhaustion can set in and the bad decisions multiply.
    The crew ofTanda Mailaika, a family of six whose 46-foot Leopard catamaran was lost on a reef on the southwest corner of Huahine in French Polynesia last month, learned this lesson the hard way.
    The first error Govatos made was in planning the 80-nautical mile passage between Moorea and the anchorage Huahine. Anticipating the forecast winds of 20 knots from astern for most of the passage, he estimated about 10 hours for the passage, an average speed of 9-10 knots putting their arrival at 4 p.m., with plenty of light to enter Huahine’s reef pass.

    Your Boat Cleaning Products Specialists Discuss How Coral Reef Protection Isn’t Difficult

    Lessons: Yourboat cleaning productsprofessionals talk about how to be extremely conservative when estimating speeds for a passage. It is much better to err on the slow side. You can almost always slow down or even heave-to, but it is much harder or impossible to make up for lost time. Likewise, allow a healthy margin for error in weather forecasts, particular in areas where meteorological data is spotty.
    As Gavatos relates, he saw the sounder indicate 85 feet and then decrease intermittently from there. At first, he assumed the sounder was incorrect-that some anomaly was creating a false reading (as had happened before).
    Lessons: When navigating coral reefs at night, mile is cutting it too close. If you absolutely must hug the reef, you’ll want multiple navigation sources to confirm your position-your own senses being among them. Closed cockpits on big cats can take your senses out of action, a potential handicap when navigating near hazards.

    Coral Reefs Could Be Gone in 30 Years

    The world’s coral reefs, from the Great Barrier Reef off Australia to the Seychelles off East Africa, are in grave danger of dying out completely by mid-century unless carbon emissions are reduced enough to slow ocean warming, a new UNESCO study says.
    And consequences could be severe for millions of people.
    The decline of coral reefs has been well documented, reef by reef. But the new study is the first global examination of the vulnerability of the entire planet’s reef systems, and it paints an especially grim picture.
    Mass Bleachings
    By 2100, most reef systems will die, unless carbon emissions are reduced. Many others will be gone even sooner. Warming is projected to exceed the ability of reefs to survive within one to three decades for the majority of the World Heritage sites containing corals reefs, the report says. (UN announces new biosphere reserves, while U.S. removes some.)
    Reefs, often referred to as the rainforests of the oceans, occupy less than one percent of the ocean floor, but provide habitat for a million species, including a fourth of the world’s fish. They also protect coastlines against erosion from tropical storms and act as a barrier to sea-level rise.
    The consequences are already being felt by some people, and will quickly grow more severe, says Eakin’s NOAA colleague and co-author Scott F. Heron. Low-lying islands such as Kiribati, a string of 33 coral atolls in the central Pacific Ocean, already see saltwater inundating freshwater drinking sources.
    “If what the models projected back then has started to come true, even with all of their issues, then we should have good faith in the science of the current projections,” Heron says. “And those projections say if we don’t act there will be many, many serious impacts.”
    Time to Act
    “When someone needs help, the overwhelming majority of us will stretch ourselves to help out-it’s a human trait. It’s what makes us people,” Heron adds. “That the people most impacted by these changes are not necessarily people we encounter in our day-to-day lives does not remove our responsibility to help them.”
    Learn morefrom Raritan Engineering about finding the best boat cleaning products for you.