|
Post by RMannix on Sept 6, 2005 12:00:18 GMT -8
Designed a web-based Air consumption Rate calculator, could be especially important diving with a J-valve and no SPG for the hardcore vintage divers. It allows planning dives with most tank sizes and allows for doubles and triples. Has all the tank specs I could find, but if anyone has specs (actual CF capacity, length, working pressure, weight, etc) on vintage tanks (38's, etc) I'd like to add them to the database. 68.60.223.114/sachome.htm
|
|
|
Post by jrvance on Sept 6, 2005 13:29:56 GMT -8
nice site, ;D ill be ready use that after i get a tank reg octopus spg bc well im saving my money
|
|
|
Post by Ron Hearn on Sept 6, 2005 17:14:56 GMT -8
More unnecessary task loading tools. It wasn't needed in the days of Sea Hunt and I don't think we need one now to dive vintage, but hay! thanks for the data.
Ron
|
|
|
Post by RMannix on Sept 7, 2005 4:39:52 GMT -8
Columbus didn't need a GPS, but I'll bet he would have used one if it was available.
|
|
|
Post by Ron Hearn on Sept 7, 2005 7:35:42 GMT -8
The world doesn't need PADI to learn to dive, but were stuck with them.
Ron
|
|
|
Post by luis on Sept 7, 2005 9:15:45 GMT -8
Thanks Rich Nice tool. Would it be possible to down load it so I can run it off line?
On a separate subject: do you ever dive up here in Maine? I just notice you are not to far away.
|
|
|
Post by RMannix on Sept 7, 2005 9:55:49 GMT -8
Thanks Rich Nice tool. Would it be possible to down load it so I can run it off line? On a separate subject: do you ever dive up here in Maine? I just notice you are not to far away. The web version uses a SQL Server database that few users would have installed. I'll be duplicating the whole thing as a Visual Basic .exe with the tank data in user updateable files that can operate off line, might be Thanksgiving before I finish it. Haven't been to Maine yet. With the fuel costs staying close to home. My truck/boat/trailer combination wouldn't do well trailering long distances either. I trailer twice a year and keep my boat slipped.
|
|
|
Post by dogsbodydiving on Sept 7, 2005 12:23:24 GMT -8
I take it you have done extensive testing on this? ? If so who with and what are the results?? Other than that your butts going to be on the line. Kim
|
|
|
Post by jrvance on Sept 7, 2005 13:21:19 GMT -8
thats the problem nowdays, person a does something nice, person b screws up, and person c sues over it
i hate all these stupid lawsuits
i cant believe a guy who shot himself in the foot get 3 millionn bucks of the gun company
|
|
|
Post by RMannix on Sept 7, 2005 14:52:22 GMT -8
I take it you have done extensive testing on this? ? If so who with and what are the results?? Other than that your butts going to be on the line. Kim Tested by ME and validated against 32 years of logged dives. The SIMPLE math in the code should hold its own in any court of law. Anyone who wishes to use this and sue me had better have a printout of their dive plan (which now includes the warnings) and prove that they dove it AS PLANNED. If they lost the data, I will still have it.
|
|
|
Post by duckbill on Sept 7, 2005 23:12:39 GMT -8
Hi RMannix. Great job on your web page! SAC seems to be overlooked in today's diving world. I don't have any tank specs for you, but do have a couple of corrections/comments if you are open to hearing them. Just say so and I'll be back. Thanks.
|
|
|
Post by RMannix on Sept 8, 2005 5:27:34 GMT -8
Hi RMannix. Great job on your web page! SAC seems to be overlooked in today's diving world. I don't have any tank specs for you, but do have a couple of corrections/comments if you are open to hearing them. Just say so and I'll be back. Thanks. Anything is welcome
|
|
|
Post by luis on Sept 8, 2005 10:43:31 GMT -8
Hi Rich
I am looking forward to using the “Visual Basic .exe” stand alone version. That sounds like a nice little project.
What a coincidence, last night I was looking through an old dive bag and found two of the old round “Time Depth Computers (TDC)”. They were both dated 1972 and they are both for steel 72 tanks only. They both have a SAC range of 0.5 to 2 cfm. The small one made the common mistake of assuming that 72 cu ft was at 2250 psi. The large one is correct with approx. 65 cu ft at 2250 psi. The printing on the large one is flaking off since these are plastic discs that rub against each other.
If you would like, I can e-mail you an Excel spread sheet with some tank data that you may find interesting. It has some related information like volumes, but I actually wrote it to calculate working and hydro testing stresses. It also calculates the design stresses based on the appropriate codes (CFR 49).
I know what you are saying about “staying close to home” due to the price of gas, specially towing a boat. Here in southern Maine I dive mostly from shore. There are good dive spots right of the coast.
|
|
|
Post by luis on Sept 8, 2005 10:59:54 GMT -8
I ran a few hypothetical examples with your calculator and what I ran checked out fine.
The only thing I found was in the tank data, the: Tank: PST E7 90 Material: Steel Actual Capacity (cubic feet): 80 I think the label is supposed to be: PST E7 80
|
|
|
Post by RMannix on Sept 8, 2005 11:14:16 GMT -8
I ran a few hypothetical examples with your calculator and what I ran checked out fine. The only thing I found was in the tank data, the: Tank: PST E7 90 Material: Steel Actual Capacity (cubic feet): 80 I think the label is supposed to be: PST E7 80 I'll take care of this when I get home from work. Any data you feel might be useful is welcome.
|
|