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Posts: 8
Reply with quote  #1 

Hey guys what did you do with your wreck numbers that are still in Loran and not converted to lat/long?


Posts: 322
Reply with quote  #2 
I had some friends convert them with a program and check as many as they could before the change over.  Not much more you could do within the short time frame.

There will be allot of new old wrecks being re-discovered and re-identified up and down the whole coast.

Good Hunting!

Good Wreck Diving!

Posts: 8
Reply with quote  #3 

Do you know what program they are using?  Im running a pc based program onboard.  Is anyone willing to trade calibration files?  and or hang logs?


Posts: 130
Reply with quote  #4 
I would contact captain al
He has a program and can probably help with the corrections. He told me this summer the conversions have been spot on.

I learned how to dive online :D

Posts: 8
Reply with quote  #5 
Thanks Ant

There are 2 programs that I know of that can accurately do this.  I am currently running 1 of them. I am wondering if anyone else in South Jersey is using it besides the draggers.  I would like to trade calibration files as well as hangs - I have over 25000 in my marks list.  Many of which came from a draggers log.

Posts: 1
Reply with quote  #6 
Hello, I have used  P-SEA WIND PLOT which has a 50 dollar add on to the main program that has a ASF correction table. The table must be calibrated as you work through areas, and in particular as an example, anything around the Sandy Hook area requires constant calibrating from the ocean side to the Raritan Bay side which can change in some areas every 100 feet! Calibration tables take a good amount of time to come up with in a area, and I believe Carl Andren's - ANDREN SEAMARKS software which I also have, may have calibration points built into certain areas. These are donated by people who have the program and are helping others along. Go here:

Captain Bp...most of the draggers up this way and New England use WIND PLOT, and as you know it is easy to import/export files (use a thumb drive) as long as you have the program. I was up and over 30k in data points, ranging from as far north as the GOM to as far south as North Carolina. You then have to sort through dragger tows, closed zones and other minutia to get down to the 'nitty gritty' the hangs that are worth the time looking for.

Anyone who has worked with the data points that most draggers and scallopers have in their plotter, will find that many are generic hangs that are of no use to either wreck fishermen or divers. They are typically hang ups such as moonstones and other low rocks, mud, snags and other bottom anomalies that used to hang up the old time draggers. The modern draggers, clam boats and scallopers of the last few decades will easily plow through these snags. For those who dive, these data points are 'worthless.' The only wrecks they typically worry about are metal ships the size of the Coimbra.

Greg at WIND PLOT designed the program for commercial fishing applications. It is not intuitive, nor easy to navigate through to get the full functionality of the program. For wreck fishermen and divers, the best use of a program would be of a simple data base design, and the ANDREN is simpler to use and store information. Personally, an EXCEL spreadsheet is the best way for any recreational diver or fishermen to use to store their information on wrecks and hangs (spots to look for).

Getting back to finding wrecks.....

Many of the supposed shipwrecks you see in hang logs were from the original SEA GRANT dragger log which can be found here:

Many Loran-C numbers were actually Loran-A number conversions, and though some are good loran numbers, most are useless now in 2011. Many of the wrecks that are in the log were knocked out by the foreign invaders during the fifties through the time the original MSA was passed by congress in 1976. The rest, older wooden shipwrecks are gone, taken by time and the action of the sea, with the 'remanents',  buried under the sand.

For those looking for numbers off the New Jersey and New York coast, here are two pages that work off the AWOIS, but have an added twist entered into their spreadsheets:

I have done much more then my share of wreck hunting over the decades. There are online sources of information to find new wrecks to fish or dive. The vast majority of big shipwrecks are now common knowledge and easy to obtain a GPS location, without worrying about a calibration table or doing conversions of true Loran-C to phantom Loran-C.

As for getting WIND PLOT data points to find new spots, make friends with a draggerman, scalloper, or clam boat in Cape May, Barnegat Light, Pt. Pleasant or Belford. A couple of cases of a good American adult beverage can open a few doors to a new spot to fish or dive on.


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