Posted by JR Gordon on December 01, 1999 at 00:43:01:
In Reply to: Re: Cyliders posted by divewizard on November 30, 1999 at 21:39:26:
Hello,
I don't wish to argue for the sake of argument, and if I did, this would not be the mountain I'd chose to die on. I am willing however, to discuss the tank preferences for educational purposes; albeit mine or yours. I have a few additional clarifications with regards to the differences.
1). The HP 120 is actually only 90.5 cu.ft. at 2640 psi. The LP 95 is 104.5 cu.ft.at 2640psi, (95 cu.ft.is at the rated fill pressure of 2400psi). The difference is +14.5 cu.ft. of air.
2). The diameter of the HP120 is 7.25 inches. The diameter of the LP95 is 8.02 inches, a difference of 3/4 inch. Therefore,the larger diameter LP tank puts the center of gravity exactly 3/8 of an inch further off your back, hardly significant. And remember, the LP95 is 4 inches shorter.
3). As for overfills, that was my point exactly. You can't get a 3500 psi fill on a boat; I don't know where you can get a settled fill of 3500psi onshore. You can however get settled fills of 3000psi. At 3000psi(settled), the HP 120 carries 103cu.ft. The LP95 @3000psi(settled)carries 119 cu.ft. The difference is +16 cu.ft. of air.
4). You can buy the LP95's for $250. +-.
Sincerely,
JR Gordon