NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: The mil as a unit of angle.
From: Richard M Pisko
Date: 2003 Mar 14, 00:09 -0700
From: Richard M Pisko
Date: 2003 Mar 14, 00:09 -0700
Back before the dawn of time (on Thu, 13 Mar 2003 15:50:24 -0400, to be exact), "Trevor J. Kenchington"wrote: >Richard Pisko wrote: > >> the old points on a compass rose can >> be matched to even numbers on the US mil system. For >> example: 0 is North and 1600 is East. 800 is NE. 400 is >> NNE. 200 is N by E. 300 would be NE by N, I think. >> >> I have no idea what would correspond to 100mils. > > > >North one-half East Thank you. >300 mils would be North North East one-half North. There is no such >thing as North East by North, which would be a full point northward from >North East and so identical to North by East (i.e. 200 mil). > Right. N by E (200), I see that now, and halfway to NNE (400) from there is NNE 1/2 N (300) because it is an odd hundred mil number. You mean I got the others right? :-) But would not 600 mils be NE by N since 800 mils is NE? >The >odd-numbered points are always named from the nearest cardinal or >ordinal point (e.g. North or North East), not from the intermediate >("inter-ordinal"?) ones like North North East. > >50 mil would be North one-quarter East and 150 mil North three-quarters >East. Again, the quarter points are named from the nearest cardinal or >ordinal point. > So Hitchcock's "North by North West" is a valid designation of the direction ... (looking for some paper) ... 5800 mils? Or perhaps 326-1/4 degrees? > >Now that wasn't really so hard, was it? Thank you. I thought I learned to box the compass up to 32 points a great many years ago, but I didn't remember the half points except as a term in sailing. Even the 32 were obviously blurred in my memory. >(Not to compare with the >complexity of lunars as a way of telling the time anyway!) > Umm... Where could I find something that explained the lunar system? There was a brief time period during the French Revolution that used a 10 (long) hour day of 100 (long) minutes per hour, and ... 100 (short) seconds per minute? Was one of the units called a lunar? I had a reference one time, but it seems to be gone. Checking the web, I discover there is the one time zone, X time, based on dividing the day into 100,000 as the unit, and starting the day at midnight (zero) on the international date line. Seems similar. >Trevor Kenchington Yours truly, -- Richard ...