USCG Loran shut down comments, worth making

Ben Ellison

Ben Ellison

Panbo editor, publisher & chief bottlewasher from 4/2005 until 8/2018, and now pleased to have Ben Stein as a very able publisher, webmaster, and editing colleague. Please don't regard him as an "expert"; he's getting quite old and thinks that "fadiddling fumble-putz" is a more accurate description.

5 Responses

  1. Dan (b393capt) says:

    ** Reprint from Aero-News Network **
    AOPA Says Loran May Take On New Life In Age Of GPS
    Mon, 10 Sep ’07
    Notes Satellite-Based Nav Still Has Its Problems
    GPS isn’t perfect… and during outages pilots need a suitable backup. The Aircraft Owners and Pilots Association says while most pilots use VORs, the FAA plans to decommission them in the next 15 to 20 years.
    Enter loran… or should we say, reenter loran.
    Last year, the Coast Guard, which operates and maintains loran transmitting stations, proposed to pull the plug on this technology. AOPA pointed out that it still may need to play an important role in the nation’s navigation and airspace surveillance system. The Coast Guard then decided to take a more studied approach.
    But recently, the Coast Guard asked users to weigh in on its future. If it’s retained, the Coast Guard listed options on how to manage it. Loran was more popular until GPS came along. GPS has proven to be easier to use and more affordable for primary navigation.
    “It’s premature to talk about management options until the FAA and Coast Guard decide if loran is suitable for aviation use as a backup to GPS,” said Randy Kenagy, AOPA senior director of advanced technology. “We can discuss how to manage it later.”
    Over the next two decades, the FAA plans to decommission VORs and radar systems and make the transition to ADS-B (automatic dependent surveillance-broadcast) as the primary surveillance system for air traffic control. Because ADS-B requires GPS to report an aircraft’s position to ATC, a GPS failure could leave pilots without electronic navigation and air traffic controllers blind unless an alternative positioning system were available.
    In its recent comments to the Coast Guard, AOPA laid out various performance parameters for a backup system such as being available for instrument operations throughout North America and the Caribbean; providing uninterrupted service for 30 minutes after a GPS outage; and adding no more than 10 percent to the cost of a navigation or dependent surveillance system.
    “While loran appears to be a viable option—among other options—many questions and policy issues remain,” Kenagy said. “Those would have to be resolved before the FAA, Coast Guard, and the aviation industry can develop an implementation strategy.”

    Last month, the US Coast Guard announced that due to economic conditions, they would be closing down the 24 LORAN-C (Long Range Aid to Navigation)
    stations operated under the auspices of the USCG. LORAN stations provide navigation, location and timing services for both civil and military air, land and marine users. According to the USCG, LORAN-C is approved as an en route supplemental air navigation system for both Instrument Flight Rule (IFR) and Visual Flight Rule (VFR) operations. The LORAN-C system serves the 48 continental states, their coastal areas and parts of Alaska.

  3. Ben Ellison Ben Ellison says:

    Thanks! I picked up on this a few weeks ago and have been trying to figure out how real the threat of Loran shut down is, and whether we civilians can do anything about it.
    Valuable material:
    The nut, well stated:
    “The Department of Homeland Security perseverates in its bureaucratic befuddlement, blindly adhering to single-thread PNT, ignoring the crucial concern of GPS back-up and truly robust PNT.” (PNT = positioning, navigation, and timing)

  4. Sandy says:

    Washington Monument Ploy. Hey, it works!

  5. John C Payne says:

    The announcement regarding Loran C shutdown is a disturbing one and I use it as a backup to my GPS, and given news reports this week of possible degradation of GPS services as satellite replacement launches are delayed the voyaging sailor will be double whammied. Leisure sailors have suffered as technology relentlessly marches on with GMDSS consigning HF radio and weatherfax being under threat, and the switchover while worth the enhanced safety is expensive. Whilst fiscal austerity is a mark of recessions doing so for relatively small cost savings at the expense of maritime safety is folly

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