On Sun, 24 Aug 2003 02:28:58 GMT, Ralph Jones
wrote:

On 23 Aug 2003 12:54:18 -0700, (Steve B)
wrote:

I think in Feet Per Minute... I must be from a different country.

How do you convert Kts per Sec / Meters per sec / Kilometers etc... to
Feet per minute

1 nautical mile = 6076.115 feet.

Actually, 1 nmi is defined as 1852 m, your feet figure is a conversion
accurate to that many places.

1 knot = 1 nautical mile per hour = 1.1508 mph = 101.3 feet per
minute.
1 meter = 39.37 inches.

That was the U.S. definition from 1893 until 1959. Today, we have
units defined exactly as 1 yd = 0.9144 m or 1 ft = 0.3048 m or 1 in =
0.0254 m.

1 kilometer = 1000 meters = 0.621 miles = 3281 feet.
1 meter per second = 3.281 feet per second = 197 feet per minute.

For practical purposes, 1 knot = 100 feet per minute is close enough
for glide computations. Also, one minute of latitude covers one
nautical mile on the ground, so the vertical lines on a chart make an
excellent nautical mile scale.

Sure, but also 1 mm on those charts equals 1 km (regional charts) or 2
km (sectional charts). So, since you are using charts drawn to a
metric scale, an ordinary ruler in millimeters also makes an excellent
kilometer scale. Don't need one of those fancy, expensive plotters if
you use sensible units that fit the scale of the charts.


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