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The City of Jacksonville, Florida has cleared me
In an email received November 3, 2009 Subject: Background result for LAWRENCE DAVIS LAWRENCE DAVIS has completed his background screening and is cleared to volunteer Environmental Quality Division. … Read entire article »
Filed under: Artificial Reefs
RDP Plus – Those grey and black boxes
Understanding the color codes on the DSAT RDP as they relate to depth and time. Let’s pull out and dust off that RDP and begin on Table 1. Table 1, the No Decompression Limits and Group Designation Table contains a bit of information. You have Pressure Group Designation running up and down the left side (The A – Z characters), Depths (found across the top of table 1), Times (the numbers found in the blue/white boxes), grey and black boxes. Let’s focus on the grey and black boxes. Flip the RDP so you are viewing the side with Table 3. Locate the paragraph reading Safety Stops. Let me quote the section. “Safety Stops – A safety stop for 3 minutes at 15ft is required any time the diver comes within 3 pressure groups of a no-decompression limit, and for any dive … Read entire article »
Filed under: Training
RDP Plus – Calculating Surface Interval
You may have read the post on Calculating your No Decompression Limit, NDL and are here to learn more of what the RDP can do. Better stated, what you can do with your RDP! Note, even though electronic versions of the RDP are available, they are too simplified when compared to walking through the tables. The results of the two when compared should be very similar. Besides, they are electronic and didn’t I mention something about electronics going out and reverting back to the tables in my previous post? Ah huh.. So let’s move on. RDP Plus take the basics of calculating your No Decompressiong Limits and shows others ways to use your RDP. For example, to calculate the amount of surface time needed to support another dive to a specific depth for a specific amount of time. Let’s take a look … Read entire article »
Filed under: Dive Planner, Divetalking, Quiz, RDP, Recreational Dive Planner, Training
Calculating No Decompression Limit, NDL
We will start with the DSAT Air Tables. simply known as the Recreational Dive Planner, RDP. Using your DSAT Air Table, position the card so it looks like what you see above. Dive tables, what are they? Why do they exist? Why do I need to understand how to use a dive table? If I have and use a computer, do I still need to know how to use a dive table? Dive tables may be found in many forms. They may be online, on a hard plastic, water proof card, they may be flexible and/or foldable but what they all contain is a method to calculate our bottom times, surface interval times based on our planned depth, time at depth and our time between dives. Is it important to know how to work your dive tables? One question asked “If I’m wearing … Read entire article »
Filed under: Diver, Divetalking, Education, Open Water, RDP, Recreational Dive Planner, Reference, Training
St Croix February 2009
The video you are about to see is of the trip I made to St. Croix February, 2009. [xr_video id=”bc7607c633364139ad9d64d22bbb8653″ size=”sm”] Larry Davis … Read entire article »
Filed under: Travel, Trip Report, Video
Concrete/Culverts and Reef Balls
Soon after Spike was placed, in fact it was one month and one day after Spike was place, we placed 10 nm miles off Ponte Vedra, 19 nm SxSE of the Mayport Jetties, in an area knows as Floyds Folly, 750 tons of concrete/culverts and Reef balls, where two reef balls were memorial reef balls containing the ashes of Philip Busnot and Capt. Bill Newman. You have to go back to 2006 when Mandarin High School, using molds and donated concrete, began forming what’s knows as reef balls. The reef balls stayed on the front lawn of Mandarin High School for the next three years. Following the same process of acquiring funding, the city returns to the state, FWC in this case with the paper work requesting a grant. We get one and with city fundings and the helps of volunteers, … Read entire article »
Filed under: Reefs
Spike, the new Artificial Reef
It was around October 2008 when I heard about The Spike. There was a calling to see if the owners would be willing to donate her and volunteers to clean her. Between October 2008 and March 2009, very little was heard on the subject of “Spike.” Around mid March 2009, I was brought to see Spike. She was beautiful. Spike is a retired USCG Tender that served Mayport Florida from her commission in 1968 to her decommissioning 1988. The US Coast Guard turned Spike over to Jacksonville’s Safe Harbor Boys Home where she was used as a dormatory and for maritime training. Here I began taking photographs of her before anything changed. To document what would never be again, before it it lost. I also began to video the rooms and compartments, hatches, and passageways. Around April/May 2009 time frame things began to pick … Read entire article »
Filed under: Artificial Reefs, Reefs, Video, Videography, Wrecks
Hello and welcome to Divetalking
Hello and Welcome to Divetalking. … Read entire article »
Filed under: Uncategorized