[C320-list] How to assess Propane fill

[Mark Gillingham]

Warren,

Either way, it was a brilliant analysis.

Mark

Mark Gillingham | @markgillingham | gplus.to/MarkGillingham | Support a
struggling student <http://101010scholarship.info> | Harbor-To-Harbor Blog
<http://www.loftnet.com> | Speakeasy Photos
<http://picasaweb.google.com/mark.gillingham>

On Fri, May 6, 2016 at 9:12 AM, Warren Updike <wupdike at hotmail.com> wrote:

> Oh, shoot, I did it again. I made a mistake in the example below. The
> following line should be, 2.38Gal not Lbs in full tank. It should read:
>         Or, 10lbs / 4.2lbs/gal = 2.38(US)Gal of propane in full tank
>
> Actually, I just threw it in there to see if anyone was actually reading my
> stuff. Apparently not.
>
> Warren and Pattie Updike
> 1994 C320 "Warr de Mar" #62
> Middle River, Chesapeake Bay
>
> -----Original Message-----
> From: Warren Updike [mailto:wupdike at hotmail.com]
> Sent: Thursday, May 05, 2016 2:29 PM
> To: C320-List at Catalina320.com
> Subject: [C320-list] How to assess Propane fill
>
> Here is an accurate way to measure the level of propane in the tank. The
> only thing you need is a scale to weigh the tank.
>
> All propane tanks will have two weights stamped on the collar (top handle.)
>
> TW (Tare Weight) - weight empty
>
> WC (Water Capacity) - weight of tank when filled with water.
>
> Regulations limit the propane level to not exceed 42% of the WC
>
> Liquid propane weight 4.2 lbs/(US)gal.
>
>
>
> My "10lb" aluminum tank WC=23.8; TW 10.0
>
> Allowed propane weight it 23.8*.42=10 lbs
>
> Propane weight + TW = weight of tank when full (10 + 10 = 20 lbs)
>
> Or, 10lbs / 4.2lbs/gal = 2.38lbs of propane in full tank
>
>
>
> I.e. if tank weighs 17 lbs, 17 - 10 TW = 7 lbs of propane at 4.2 lbs/gal =
> 1.67 gal of propane or 70% full
>
>
>
> Some stations sell by gallon, others by weight. So, figure both and compare
> to what the attendant says when full.
>
>
>
> Warren and Pattie Updike
>
> 1994 C320 "Warr de Mar" #62
>
> Middle River, Chesapeake Bay
>
>
>
>
>
>