Feet Per Minute Conversion Question

"Lennie the Lurker" wrote in
message
om...
| (JJ Sinclair) wrote in message
...
| feet per sec X 0.508 = meters per sec
|
| This from the 1987 SSA MEMBERSHIP HANDBOOK.
|
| Haven't seen an updated book in 20 years. It has lots of
useful information,
| like this in it.
| JJ Sinclair
|
| 1 meter =39.37 inches. Methinks someone screwed up, like
JJ. Maybe
| try .3048, just seems to agree with fact, and good math,
not new math,
| not french math, either. Nautical mile 6080 feet, as
against 5280 for
| statute mile.
|
| nautical mile - statute mile =1.1515
|
| statute mile - nautical mile = .8684

Lennie,
6080 feet is the United Kingdom Nautical Mile
6076.115 feet is the United States Nautical Mile
According to the conversion program I use (Prokon, by Harold
Schwartz, Jefferson City, MO)
Cheers, John G.

"John Giddy" wrote in message ...
"Lennie the Lurker" wrote in
message
om...
| (JJ Sinclair) wrote in message
...
| feet per sec X 0.508 = meters per sec
|
| This from the 1987 SSA MEMBERSHIP HANDBOOK.
|
| Haven't seen an updated book in 20 years. It has lots of
useful information,
| like this in it.
| JJ Sinclair
|
| 1 meter =39.37 inches. Methinks someone screwed up, like
JJ. Maybe
| try .3048, just seems to agree with fact, and good math,
not new math,
| not french math, either. Nautical mile 6080 feet, as
against 5280 for
| statute mile.
|
| nautical mile - statute mile =1.1515
|
| statute mile - nautical mile = .8684

Lennie,
6080 feet is the United Kingdom Nautical Mile
6076.115 feet is the United States Nautical Mile
According to the conversion program I use (Prokon, by Harold
Schwartz, Jefferson City, MO)
Cheers, John G.

So change the last two digits to correct it. Then try to read that
off your VSI. I don't use converstion programs, just an old copy of
the math tables published by Industrial PRess, copyright 1929.
Sometimes factors applied with my old Post Versalog. Close enough for
most matters, except for nitpickers.

Ups, make that;
Hundreds of feet per minute times 0.508 = meters per second.
JJ Sinclair

How do I convert Meters/second to Leagues per Hour? I need the answer
to five significant digits.

I also need to convert wing loadings from Kg/square meter to
tons/acre.

Can I do the conversion in Winpilot?

You seem like a swell person. I have two tickets to the rodeo. Maybe you
would like to have some Chinese food and a couple of brewskis, then we can
go to rodeo together. You will really enjoy it. Try to rent some Levi's
though. I don't think a starched collar is appropriate.



"Gene Nygaard" wrote in message
m...
"Pete S" wrote in message
...
Looks like they made the mistake of assuming that a nautical mile was
6000
feet when it's actually 6080 ft

No, it's actually 1852 m in today's world. Your 6080 ft is 1853.184
m, all around the world since an international agreement on the
definition of the yard (and thus feet, inches, etc.) over 40 years
ago.

Gene Nygaard
http://ourworld.compuserve.com/homepages/Gene_Nygaard/

tons/acre = Cos( furlongs/ weekend)
Jon.



"Liam Finley" wrote in message
om...
How do I convert Meters/second to Leagues per Hour? I need the answer
to five significant digits.

I also need to convert wing loadings from Kg/square meter to
tons/acre.

Can I do the conversion in Winpilot?

Nygaard is a troll. He is *not* a glider person. He gets his jollies
by trying to "show off" his supposedly superior knowledge of units of
measure. Ignore him.


(Gene Nygaard) wrote in message om...
"Pete S" wrote in message ...
Looks like they made the mistake of assuming that a nautical mile was 6000
feet when it's actually 6080 ft

No, it's actually 1852 m in today's world. Your 6080 ft is 1853.184
m, all around the world since an international agreement on the
definition of the yard (and thus feet, inches, etc.) over 40 years
ago.

Gene Nygaard
http://ourworld.compuserve.com/homepages/Gene_Nygaard/

Hey Gene, What kind of glider do you fly? Methinks you are a troll
and should leave this newsgroup alone with your misguided "superior"
knowledge of weights and measure. This is a newsgroup for soaring.

Gene Nygaard wrote in message . ..
On Sun, 24 Aug 2003 14:38:07 +0100, "W.J. \(Bill\) Dean \(U.K.\)."
wrote:

On the Equator.

Wrong.

There have been some geographical miles based on the equatorial
circumference, but I've never seen them called nautical miles. There
was one geographical mile equal to 4 minutes of arc on the equator, or
about 7.421 km; I have a copy of a map using these units.

Nautical miles have normally been defined to be some midrange,
midlatitude value for a minute of arc as you travel north-south along
a meridian.

At the equator, 1 minute of longitude is 1.001795 nmi.

But 1 minute of latitude (geodetic latitude, the kind normally used)
at the Equator is only about 0.9950 nmi.

W.J. (Bill) Dean (U.K.).
Remove "ic" to reply.


"JJ Sinclair" wrote in message
...

Navigational question for the day;
One minute of latitude = 1 nautical mile.
At what point on the earth does 1 minute of longitude = 1 nautical mile?

JJ Sinclair.

It is at some place close to the equator, where the circumference of
the earth at that latitude is 40.0032 Mm, rather than the 40.007495 Mm
at the Equator (WGS-84 ellipsoid). A latitude close to the arccosine
of 40.0032/40.007495, or about 3½ degrees from the Equator either
north or south (a more exact value depends on which type of latitude
you use, as well as which ellipsoid you use to approximate this).

To help see this better, your "minute of longitude" at a latitude of
60 degrees would be about 0.50 nmi, and at the poles a
"minute of longitude" is 0 nmi. It is actually the minute of latitude
as you travel along a meridian (constant longitude) that most people
consider in evaluating the fit of a nautical mile to the Earth.

Now, at what point is one centigrade of latitude equal to one
kilometer?

Gene Nygaard
http://ourworld.compuserve.com/homepages/Gene_Nygaard/

My vario is calibrated in megaparsecs per millenium. Very
handy.

Troll = Ugly devil liviin' under a bridge, (see also motorcycle cops with
radar guns (usually under a bridge)).
Trolls = More than one ugly devil (also found in newsgroups)
Trolling = Fishin' with fake bait from a slow boat.
Cheers!