X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 30 [X] Return-Path: Received: from mail05.syd.optusnet.com.au ([211.29.132.186] verified) by logan.com (CommuniGate Pro SMTP 5.1.3) with ESMTPS id 1619118 for flyrotary@lancaironline.net; Wed, 29 Nov 2006 02:57:24 -0500 Received-SPF: none receiver=logan.com; client-ip=211.29.132.186; envelope-from=lendich@optusnet.com.au Received: from george (d220-236-156-13.dsl.nsw.optusnet.com.au [220.236.156.13]) by mail05.syd.optusnet.com.au (8.13.1/8.13.1) with SMTP id kAT7ussj020696 for ; Wed, 29 Nov 2006 18:56:56 +1100 Message-ID: <00d601c7138b$f29436d0$0d9cecdc@george> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Metric Date: Wed, 29 Nov 2006 17:56:57 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00D3_01C713DF.C339FA60" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 X-Antivirus: avast! (VPS 0651-2, 28/11/2006), Outbound message X-Antivirus-Status: Clean This is a multi-part message in MIME format. ------=_NextPart_000_00D3_01C713DF.C339FA60 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Jarrett, When traveling around the US on my 'Aussie speedo metered' (metric) = Harley, I had to mentally calculated all speeds on the go. I found the easiest system was using was using the 5/8 fraction i.e. = 100 k's and hour are approximately 60 miles an hour ( 100 k's/8=3D 12 = approx x 5 =3D 60mph) I don't try to go into decimal points when doing = it in my head, as all I want is the approximate whole number. I learned how to do this as I have an old 73 Landcruiser, with miles an = hour Speedo - the system is the same but inverted i.e. 8/5 this.e. ( = 60mph/5=3D12x 8 =3D 96 K's) ----- Original Message -----=20 From: H & J Johnson=20 To: Rotary motors in aircraft=20 Sent: Tuesday, November 28, 2006 11:48 PM Subject: [FlyRotary] Re: Metric 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 =20 Date: Tuesday, November 28, 2006 2:55 am=20 Subject: [FlyRotary] Re: Metric=20 > Hi John;=20 >=20 > Ok, I didn't realize you were referring to=20 > matching your US=20 > odometer to distances up here. Not a problem up here as every=20 > vehicle sold=20 > in Canada since 1977 has the odometer in Km. And from wheat to=20 > steam and=20 > everything in between, it drove everybody from farmers to=20 > engineers nuts at=20 > first. I was 10 when it was switched and wasn't impressed at the=20 > time as I=20 > was having enough trouble learning the 3 "R"s, but it turns out to=20 > havebenefitted me as I can easily use both systems without the=20 > need for mental=20 > conversion (except temp, never did care for the Fahrenheit thing),=20 > but my=20 > Dad who all along has embraced the metric system still mentally=20 > converts(even though he is loathe to admit it), while my much=20 > younger brother has=20 > never really known anything but metric. I can tell you that many=20 > things are=20 > much simpler to calculate using metric. Steam tables are one of=20 > the nastiest=20 > examples I can think off. Not something many people ever have to=20 > deal with,=20 > but a good example of how much simpler and strait forward that=20 > metric can=20 > make something.=20 >=20 > While I still have memories of dreading the=20 > changeover, in=20 > hindsight it was really all that painful and it will benefit future=20 > generations. Dave, correct me if I'm wrong but I believe the US=20 > military has=20 > changed over or are in the process of it now? So while you=20 > naturally want to=20 > resist it, if not your kids, then your grandkids will benefit from=20 > a change=20 > while they're young enough to adapt easily.=20 >=20 > I'm tempted to answer some of the other e-mails regarding=20 > economic benefits=20 > etc. but I really can't see what continuing this discussion has to=20 > do with=20 > rotary engines in airplanes, so I've decided to leave it at this.=20 >=20 > Now if wasn't currently -29C here (that's -20F for=20 > you SAE=20 > 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=20 > to talk=20 > about!=20 >=20 >=20 >=20 > Todd (resistance is futile. you will be assimilated J)=20 >=20 >=20 >=20 > From: Rotary motors in aircraft [flyrotary@lancaironline.net] On=20 > Behalf Of John Downing=20 > Sent: Monday, November 27, 2006 6:20 AM=20 > To: Rotary motors in aircraft=20 > Subject: [FlyRotary] Re: Metric=20 >=20 >=20 >=20 > Todd; When you leave Michigan and travel east towards Niagara=20 > Falls, you=20 > pass through the rural farm land all laid out in mile square=20 > sections. The=20 > signs are in km and the odometer is in miles and all the distances=20 > needconversion. I didn't think it was broke, but they changed it.=20 > When you=20 > look at the bushels of wheat per acre, it really gets more involved, = > hectoliters per hectare??, that change must have driven allot of=20 > ole farmers=20 > nuts. Just my casual observation from the farm. JohnD=20 >=20 > ----- Original Message -----=20 >=20 > From: Todd Bartrim =20 >=20 > To: Rotary motors in aircraft=20 >=20 > Sent: Monday, November 27, 2006 12:25 AM=20 >=20 > Subject: [FlyRotary] Re: Metric=20 >=20 >=20 >=20 >=20 >=20 >=20 >=20 > I have seen this in Canada and none of the distances match=20 > anything you see.=20 >=20 >=20 >=20 >=20 > I don't get this? Care to elaborate?=20 >=20 >=20 >=20 > Todd (matching distances everywhere I look)=20 >=20 >=20 -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ ------=_NextPart_000_00D3_01C713DF.C339FA60 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Jarrett,
When traveling around the US on my = 'Aussie speedo=20 metered' (metric) Harley, I had to mentally calculated all speeds = on the=20 go.
I found the easiest system was = using  was=20 using the 5/8 fraction i.e.  100 k's and hour are approximately 60 = miles an=20 hour ( 100 k's/8=3D 12 approx x 5 =3D 60mph) I don't try to go into = decimal points=20 when doing it in my head, as all I want is the approximate whole=20 number.
I learned how to do this as I have an = old 73=20 Landcruiser, with miles an hour Speedo - the system is the same but = inverted=20 i.e. 8/5 this.e. ( 60mph/5=3D12x 8 =3D 96 K's)
----- Original Message -----
From:=20 H & J=20 Johnson
Sent: Tuesday, November 28, = 2006 11:48=20 PM
Subject: [FlyRotary] Re: = Metric

Being a Canuk myself, and growing up on the farm, I was exposed = to both=20 systems. My father talked in acres and miles [ still does] and = really it=20 makes sense as they land was marked out in the same sections as = any other=20 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=20 says go 4 miles north and 3 miles west, if you look on the speedo, 40 = miles/hr=20 is about 60km/hr so 4 miles is ~ 6km's. I used to navigate all over = the place=20 using this to 'convert' the directions into something usable/definable = by the=20 vehicles odometer. There are nice things about the metric system = however they=20 did complicate it more than needed. If you never use cm, cL you'll be = fine.=20 [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=20 heard this.

One thing I've always wondered about is, did the metric = people=20 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>=20

Date: Tuesday, November 28, 2006 2:55 am=20

Subject: [FlyRotary] Re: Metric=20

> Hi John;
>=20 =
>           = ;    =20 Ok, I didn't realize you were referring to
> matching your US =
>=20 odometer to distances up here. Not a problem up here as every
> = vehicle=20 sold
> in Canada since 1977 has the odometer in Km. And from = wheat to=20
> steam and
> everything in between, it drove everybody = from=20 farmers to
> engineers nuts at
> first. I was 10 when it = was=20 switched and wasn't impressed at the
> time as I
> was = having=20 enough trouble learning the 3 "R"s, but it turns out to
>=20 havebenefitted me as I can easily use both systems without the =
> need=20 for mental
> conversion (except temp, never did care for the = Fahrenheit=20 thing),
> but my
> Dad who all along has embraced the = metric=20 system still mentally
> converts(even though he is loathe to = admit it),=20 while my much
> younger brother has
> never really known = anything but metric. I can tell you that many
> things are =
>=20 much simpler to calculate using metric. Steam tables are one of =
> the=20 nastiest
> examples I can think off. Not something many people = ever=20 have to
> deal with,
> but a good example of how much = simpler=20 and strait forward that
> metric can
> make something. =
>=20 =
>           = ;    =20 While I still have memories of dreading the
> changeover, in =
>=20 hindsight it was really all that painful and it will benefit future =
>=20 generations. Dave, correct me if I'm wrong but I believe the US =
>=20 military has
> changed over or are in the process of it now? So = while=20 you
> naturally want to
> resist it, if not your kids, = then your=20 grandkids will benefit from
> a change
> while they're = young=20 enough to adapt easily.
>
> I'm tempted to answer some = of the=20 other e-mails regarding
> economic benefits
> etc. but I = really=20 can't see what continuing this discussion has to
> do with =
>=20 rotary engines in airplanes, so I've decided to leave it at this. =
>=20 =
>           = ;    =20 Now if wasn't currently -29C here (that's -20F for
> you SAE =
>=20 types) or if I'd gotten my shop heated before winter, then maybe I'd =
>=20 actually be working on my plane and have something more relevant =
> to=20 talk
> about!
>
>
>
>=20 Todd      (resistance is futile. you will be=20 assimilated J)
>
>
>
> From: Rotary motors = in=20 aircraft [flyrotary@lancaironline.net] On
> Behalf Of John = Downing=20
> Sent: Monday, November 27, 2006 6:20 AM
> To: Rotary = motors in=20 aircraft
> Subject: [FlyRotary] Re: Metric
>
> =
>=20
> Todd;  When you leave Michigan and travel east towards = Niagara=20
> Falls, you
> pass through the rural farm land all laid = out in=20 mile square
> sections.  The
> signs are in km and = the=20 odometer is in miles and all the distances
> = needconversion.  I=20 didn't think it was broke, but they changed it.
> When you =
>=20 look at the bushels of wheat per acre, it really gets more involved, =
>=20 hectoliters per hectare??, that change must have driven allot of =
> ole=20 farmers
> nuts.  Just my casual observation from the = farm. =20 JohnD
>
> ----- Original Message -----
>
> = From:=20 Todd Bartrim <bartrim@gmail.com> 
>
> To: = Rotary=20 <flyrotary@lancaironline.net>  motors in aircraft
> =
>=20 Sent: Monday, November 27, 2006 12:25 AM
>
> Subject:=20 [FlyRotary] Re: Metric
>
>
>
>
> =
>=20
>
> I have seen this in Canada and none of the distances = match=20
> anything you see.
>
>
>
> =
> I=20 don't get this? Care to elaborate?
>
>
>
> = Todd      (matching distances everywhere I = look)=20
>
>=20 

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