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I have been in touch with another person, Scott who posts here, and in one thread described that I have two scuba units upstairs for use in case of a fire that would cut my wife and I off from exiting downstairs in our house. It would give time for us to access and deploy the emergency ladder we...

This link just appeared in the "Resources" area of ScubaBoard, but I thought it should also be here. https://www.sukellushistoriallinenyhdistys.fi/ancient-diving/

I have just finished re-qualifying my 1980s Canon F-1N in an Ikelite housing to use again, using film. I started out by doing a leak check in my utility room sink, then decided it was time to put it into the water at the Tualatin River in Tigard, Oregon. The water was not deep, but I was...

This is a historical document from the Rubicon Research Repository achieves that I downloaded years ago. It is: EVALUATION REPORT 9-60 EVALUATION OF DACOR DIVING LUNG WITH DIAL-A-BREATH FEATURE By R.L. Gwinn, MMI(DV), UNS G.M. Janney, LTJG, UNSR 21 Deceember 1959 "It is recommended that the...

I had the privilege of attending the Altitude Diving Conference in 1973. This was held in coordination with NAUI, and I attended as a representative of the U.S. Air Force, 304th Aerospace Rescue and Recovery Squadron, Pararescue Section. I was also a NAUI instructor at the time. The...

Did you ever wonder how the Scubapro first stages got that low pressure (LP) line out of the end of the first stage? Well, that happened because the Navy Experimental Diving Unit (NEDU) in 1970 evaluated the Scubapro Mark I against the Mark V, and found that the Mark I out-performed the Mark V...

This file came from the Rubicon Foundation Achieve, which is no longer available. It is titled: COMPARATIVE EVALUATION OF SWIM FINS W.G. Fischer Navy Experimental Diving Unit Washington, D. C. 1 March 1957 This document contains 57 pages of information on swim fins from the late 1950s. It...

This thread is a repository of the information on altitude diving I gained in the 1970s through NAUI's Altitude Diving Conference. I have notes from that conference, but first here is the E.R. Cross article in TechniFacts from Skin Diver Magazine, November 1970. It also contains a short...

I have been diving for many years, and enjoyed the Scubapro Shotgun Snorkels. I still dive my old ones, and was wondering why this series of snorkels have been discontinued? These are some of the best snorkels ever produced. SeaRat

I just put together a post on the Basic Diving area, where I had mentioned capillary depth gauges as compensating for altitude. I decided to elaborate, and this is what I said:

I have been collecting different masks for decades, and have recontly gone to Goodwill to get snorkels and masks to try out. Many people pick up a cheap mask and use it on a vacation to warm water, then give it away to Goodwill for next to nothing. But I see that this Icon mask is available...

I am going to start this thread by posting my dive log from a 2011 dive in the Clackamas River. This will be a rather long post, but it explains the first dive in which I actually witnessed the Pacific lamprey spawning in our rivers. This spring I again witnessed this spawning event, and was...

As a former U.S. Air Force Pararescueman (1967-1977), and a fairly regular member of these Scubaboard forums, I have been asked to put together a thread on USAF Pararescue as it applies to SCUBA diving. But in order to do that, I need to tell you a bit about what Pararescuemen (PJs) do, and...

I was posting in another solo diving thread about divemasters who say, "if you dive alone, you die alone," and talked about my solo diving over the years. I also said that if some divemaster challenged me about solo diving, I would ask if he (almost always a "he") had ever made a parascuba jump...

I have been posting in a different thread (Beyond Drag...) about a different style of underwater swimming I have been working on since the 1970s. While I am not disabled, I am now 70 years old, and I want to get these ideas out so people who could benefit from them can start to use them. One...

Not many people remember that there is a technique used by vintage divers which allows us to talk underwater. It is a very inexpensive technique, and requires only the use of an oval mask (or other mask that allows sealing around the entire face). Here it is...

The following is a You Tube video I put together after a dive in the Clackamas River, Oregon at High Rocks in Gladstone, Oregon on July 2, 2015. Salmon in Trouble shows dramatically the result of low stream flows leading to increased water temperatures, which places the salmon on their run up...

There has been a discussion on a different thread about whether a double hose regulator is "vintage" or "modern," based on whether it has low pressure and high pressure ports (modern configuration) or lacks that ability. I wanted to show that these features have been available for many years on...

I'm new to the underwater video game, and got my GoPro video camera for last Christmas. What I want to do is to learn to use GoPro Studio, and put together both training videos and educational videos of my favorite dive site, High Rocks on the Clackamas River. To that end, I filmed my first...

Yesterday, I had a failure of my Suunto Cobra high pressure hose. It was significant, but I decided to dive it as I was diving shallow and could get to the surface without problems (no overhead environment). Here's a photo of that problem: I posted this in the Nautilus CVS thread, but it...