L13
Contributor
I don't think anyone said "gota use metric." The beginning of the side track was @MarkA 's comment that:Not sure how this devolved into "gotta use metric". We were discussing SAC and RMV. Use whatever units you like. I'm "bilingual" with respect to units and will converse with you in your native tongue if you aren't.
The first part is objectively true for anyone starting from scratch, and for anyone mentally flexible enough to be "bilingual." Once you've invested enough effort in another system, it may no longer be true.
The second part is sadly not true given the number of people who believe that the fact that the USD is the world's reserve currency has anything to do with the relative value of a unit system. I'm not sure the US will ever reach the "Time to join the rest of the world and go metric."
Even the metric people didn't switch to a metric system for units of time, so they shouldn't be too judgemental of those who don't go metric for the rest(pointing at myself here).
I raised my kids "bilingual" so they won't be handicapped by their country of origin. Actually, I think it gives them an advantage over the metric only kids as well.
As for the magic number 11.1 liters, and 2.6 cuft/100psi :
One makes sense as the standard unit of volume, which is also volume per standard unit pressure, and is the well known rating for the tank.
the other is arbitrary "factor" of volume per not standard (and kinda almost metric like) pressure, and is not a standard tank rating so needs to be precalculated. To use it we have to convert the standard units of pressure to a not standard unit (admittedly easy), and then we do the depth compensation by using a third unit of pressure.
