Mailing List flyrotary@lancaironline.net Message #34559
From: Todd Bartrim <bartrim@gmail.com>
Subject: Re: [FlyRotary] Re: Metric
Date: Tue, 28 Nov 2006 12:24:36 -0800
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Yes, it's called Universal Transverse Mercator Grid, or UTM. It is an option on every GPS reciever on your settings menu. And if you don't like the rest of the metric system then you're really going to love this one. It's units are based in meters and instead of latitude it's called "northing" or "southing" while longtitude is "westing" or "easting". Units north of the equator are simple because every unit increase is equal to 1 meter. However units west or east are only equal to 1 meter at the equator so become smaller as you near the poles. (much like using knots for a measurement on a map with long and lat). This is the primary system in use for all resource sector maps in this region (forestry, mining, etc.) Unfortunatly all aviation charts and recreation maps are still using the lat/long system.
   Google UTM and you'll find greater detail that I'm certain most of you don't want to know :-)

Todd

On 11/28/06, H & J Johnson < hjjohnson@sasktel.net> wrote:

Being a Canuk myself, and growing up on the farm, I was exposed to both systems. My father talked in acres and miles [ still does] and really it makes sense as they land was marked out in the same sections as any other farm land[1 mile by 1 mile]. One trick I figured out to help me follow directions was to use a speedometer to convert like a slide rule. If someone says go 4 miles north and 3 miles west, if you look on the speedo, 40 miles/hr is about 60km/hr so 4 miles is ~ 6km's. I used to navigate all over the place using this to 'convert' the directions into something usable/definable by the vehicles odometer. There are nice things about the metric system however they did complicate it more than needed. If you never use cm, cL you'll be fine. [instead only use mm and mL or meters and litres]

Someone mentioned that a cc isn't a ml, care to explain? I've never heard this.

One thing I've always wondered about is, did the metric people figure out a way to navigate the globe? [ie Lat/Long]

 

Jarrett Johnson [not an advocate of either system]

 

----- Original Message -----

From: Todd Bartrim <bartrim@gmail.com>

Date: Tuesday, November 28, 2006 2:55 am

Subject: [FlyRotary] Re: Metric

> Hi John;
>
>                Ok, I didn't realize you were referring to
> matching your US
> odometer to distances up here. Not a problem up here as every
> vehicle sold
> in Canada since 1977 has the odometer in Km. And from wheat to
> steam and
> everything in between, it drove everybody from farmers to
> engineers nuts at
> first. I was 10 when it was switched and wasn't impressed at the
> time as I
> was having enough trouble learning the 3 "R"s, but it turns out to
> havebenefitted me as I can easily use both systems without the

> need for mental
> conversion (except temp, never did care for the Fahrenheit thing),
> but my
> Dad who all along has embraced the metric system still mentally
> converts(even though he is loathe to admit it), while my much
> younger brother has
> never really known anything but metric. I can tell you that many
> things are
> much simpler to calculate using metric. Steam tables are one of
> the nastiest
> examples I can think off. Not something many people ever have to
> deal with,
> but a good example of how much simpler and strait forward that
> metric can
> make something.
>
>                While I still have memories of dreading the
> changeover, in
> hindsight it was really all that painful and it will benefit future
> generations. Dave, correct me if I'm wrong but I believe the US
> military has
> changed over or are in the process of it now? So while you
> naturally want to
> resist it, if not your kids, then your grandkids will benefit from
> a change
> while they're young enough to adapt easily.
>
> I'm tempted to answer some of the other e-mails regarding
> economic benefits
> etc. but I really can't see what continuing this discussion has to
> do with
> rotary engines in airplanes, so I've decided to leave it at this.
>
>                Now if wasn't currently -29C here (that's -20F for
> you SAE
> types) or if I'd gotten my shop heated before winter, then maybe I'd
> actually be working on my plane and have something more relevant
> to talk
> about!
>
>
>
> Todd      (resistance is futile. you will be assimilated J)
>
>
>
> From: Rotary motors in aircraft [flyrotary@lancaironline.net] On
> Behalf Of John Downing
> Sent: Monday, November 27, 2006 6:20 AM
> To: Rotary motors in aircraft
> Subject: [FlyRotary] Re: Metric
>
>
>
> Todd;  When you leave Michigan and travel east towards Niagara
> Falls, you
> pass through the rural farm land all laid out in mile square
> sections.  The
> signs are in km and the odometer is in miles and all the distances
> needconversion.  I didn't think it was broke, but they changed it.
> When you
> look at the bushels of wheat per acre, it really gets more involved,
> hectoliters per hectare??, that change must have driven allot of
> ole farmers
> nuts.  Just my casual observation from the farm.  JohnD
>
> ----- Original Message -----
>
> From: Todd Bartrim <bartrim@gmail.com
>
> To: Rotary <flyrotary@lancaironline.net>  motors in aircraft
>
> Sent: Monday, November 27, 2006 12:25 AM
>
> Subject: [FlyRotary] Re: Metric
>
>
>
>
>
>
>
> I have seen this in Canada and none of the distances match
> anything you see.
>
>
>
>
> I don't get this? Care to elaborate?
>
>
>
> Todd      (matching distances everywhere I look)
>
>

--

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