But, Loran C was at one time the electronic means to locate oneself on a map, especially along water ways. Boats with extra equipment always had this device and alot of airplanes could utilize it.
Now that I think about it though, I remember only one trainer having it installed out of 5 or so Cessna 152s in stock, that I used while training for PIC. Of course, I started out in a 150 Aerobat with the basic comm set and I was just happy learning to land my first few lessons. One day, I got my hands on a newer 152 that was real easy on the eyes. I think all planes are easy on the eyes--especially when in the air. I wanted to learn how to use this Loran C, but my instructor said it wasn't necessary--I suspected his knowledge of it was limited at best.
This was at a time I when I was soloing and asked my instructor if we could do spins, NO, and eventually,I asked all of the available instructors if they would teach me spins, NO! Blank looks, stares met me at every request. They had done their spin training to get their certifications, but I wasn't required to have it to get my private pilot certification. Also, their excuses included the notion that it would tumble the gauges and do irreparable harm. Always thought we could cage a gyro, but no forward progress here at this time.
Having accepted all the no's available, I forgot about the Loran C and spin training.
Ok, now the Loran C is being disabled as costly and unnecessary to the U.S.A for redundancy and safety. I wonder what we have as a backup to GPS? The constellation of satellites are getting older and eventually, the replacements in space will need to be replaced, but as I understand it--newer generation GPS satellites aren't a top priority now. Another question, begs, who has Loran C still installed in their cockpits? If GPS failed, how long before it went back online?
China and Russia are putting up their own GPS type systems for their strategic value, but all of the systems are incompatible at this time. China's systems are 3 to 5 times more expensive than ours and not yet as accurate. It'll be like our space program. We can hitch a ride aboard Russian spacecraft, because we will not have an active space program to lift human cargo beyond 2010 and we can use the other global powers' GPS type systems when we don't fund the USA version any longer. ...... lakotahope
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Coast Guard sounds death knell for loran-C
The U.S. Coast Guard gave notice Jan. 7 that it will start decommissioning the long range navigation (loran-C) system beginning Feb. 8.
All loran stations will cease transmission by Oct. 1, according to the notice. While loran-C is not now widely used for navigation, government and independent agencies have recommended using an enhanced version of it, eLoran, as a national backup system for GPS. The termination of loran will leave the country without a single national backup system in the event of a GPS outage.
“Recent reports have shown that the constellation of satellites is vulnerable to outages and service disruptions,” said Craig Spence, AOPA vice president of operations and international affairs. “AOPA has long cautioned against decommissioning loran before a separate navigation system is established as a backup.”
The vulnerability of satellite coverage was made clear in 2007, when a scheduled Navy training exercise in the Port of San Diego unintentionally jammed GPS signals, shutting down satellite-based navigation, tracking, and cell phone services. Outages could become more frequent as older satellites reach the end of their operational life: A Government Accountability Office (GAO) report released in 2009 concluded that many of the older satellites in use could stop working faster than they can be replenished, possibly resulting in reductions in service as early as this year.
In the event of a loss of GPS-based services, the Coast Guard says that the Department of Transportation (DOT) has determined that sufficient alternative navigation aids currently exist and that loran is not needed. However, a 2006 Independent Assessment Team (IAT) report commissioned by the DOT and Department of Homeland Security (DHS) found that “eLoran is the only cost-effective backup for national needs … . It is a seamless backup, and its use will deter threats to U.S. national and economic security by disrupting (jamming) GPS reception.” IAT reiterated its support of eLoran in 2009.
The DOT and DHS jointly recommended in 2007 that eLoran be the national backup for GPS, and DHS formally announced in February 2008 its intention to implement eLoran as a national positioning, navigation, and timing system to complement GPS in the event of an outage or disruption in service.
Loran-C has been periodically slashed from budgets over the past several years, but it has always been restored pending a decision on what system will be in place if satellite services are disrupted. Decommissioning loran-C would eliminate the infrastructure upon which a potential eLoran system would rely.
The 2010 Department of Homeland Security Appropriations Act, signed into law in October 2009, allows for the termination of the system subject to the Coast Guard certifying that termination of the signal will not adversely impact the safety of maritime navigation and DHS certifying that the infrastructure is not needed as a backup to GPS or to meet any other federal navigation requirement. The Coast Guard determined that those certifications were made.
According to the Office of Management and Budget, shutting down loran-C will save $36 million in fiscal 2010 and $190 million over five years.
