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The lungs have no sensation. When you have a snorkel in your mouth you can be flat, horizontal on the surface, or vertical on the surface and still breath through the snorkel without noticing the difference. The NEDU (Navy Experimental Diving Unit) and all the commercial regulator (and...

Those are 1 pound and the belt is 1 inch width. Here is page 1 and 2 of the 1958 catalog.

I saw this picture about two weeks ago. It was talking about the Yoga class, but we can see in the background, some progress on the new pier. This was at least two weeks ago, does anyone has any newer pictures?

I am very sorry to hear about Bob. Bob was a great guy. We had some fun times in some of the vintage equipment gatherings. He was always great about sharing his heavy gear collection and some of his cool vintage Scuba gear. Here is a picture of him wearing a white T shirt. I am the handsome...

Does anyone has any updates on the progress of the Divi dive pier? I would love to see some pictures of the progress of new pier if you have any. Thanks

It is still in production, but I would consider it vintage design since it has been around for many decades. It was originally a Cressi Sub mask, but I see that there are clones now-a-days. It may be that Cressi doen't make that mask anymore... I am not sure. That mask was even used by the...

Hi @herman I just remember that the earlier tools that we used (from US Divers, now Aqua Lung) were not tapered. You had to put all the components in it and used the snap-ring tool to compress and place the snap ring on top of the stack of parts. Then you used the plunger to push all of it into...

I agree, even aluminum ones will show some shavings. My experience is that seem to fall on top of the filter... or at least those are the ones that we can see. :oops: .

^^^ different monster.

Yes, it is OK. Back in the 70's, when I worked at Divers Service Center we always used a 1/4" diameter dowel. With the old dowel method you had to use a small dowel so that you can use a snap ring tool to compress the snap ring and inserted. The snap ring has to be in position around the dowel...

@herman tool was excellent. Similar tools are available from a couple of sources below. Before we had that type of tool we used to use the old dowel method. I started using the dowel method over 50 years ago. I did it long enough, but I will never do that again. It works, but there are better...

I did find some of my pictures from Crash Boat beach, from the early 70's. They are not very good pictures, but they are the best that I have. These are just scans of 4 pictures at a time. I have not been able to find the negatives. On the top left picture you can see the two north piling...

I found these pictures in the website about the "History of Crash Boats" (in my previous post). The picture below doesn't show the outer structures, but it is very cool to see. Borinquen Crash Bt. Basin "Borinquen Field, in Aguadilla, Puerto Rico, 1945. Later renamed Ramey AFB. Today the...

It is always a good day when I learn something new... It is just as good when I am able to teach something to someone. Thanks :cool: As a kid, I always heard that story and I never question it since it made total sense looking at the finger piers. Well, after more than 50 years I decided to...

Here are a couple more pictures. I have not found any pictures showing the bridge structures between the piling structures. From what I remember, they were massive. They were not for vehicles, only foot traffic (they had steps at both ends), but they were wide and rugged. I wish that I could...

I had a Nikonos II in the 70's, but I rarely took pictures above the water. So I sad to say that I really don't have pictures. But I went to Google maps and downloaded a bunch of pictures. In one of the pictures it shows 4 out of the 5 piling structures, then three and finally they are all...

It is amazing how much Crash Boat Beach has change over the years. Actually, the beach itself has not changed much, just the pier. I started diving Crash Boat Beach in 1971 and all through the 70’s, the piers were all intact. Not only were the outer pilings (dolphins) were all intact, but even...

Mark Gresham is not an engineer. He is very knowledgeable, but I actually did some minor consulting for him years ago.

Hi Bob, In general, I will have to agree with what @Wookie , @grantctobin , and @broncobowsher have said, but with the limited information from the OP, there are obviously some assumptions being made. Maybe he already has a market, a very specific market or something… He does say “scba” (not...

I have seen the Farallon one, but I have never seen that one.