NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Plotting LOP's
From: Robert Eno
Date: 2006 Jun 8, 13:31 -0400
From: Robert Eno
Date: 2006 Jun 8, 13:31 -0400
G'day Mike, Your comment resonates with me. In 1983 or '84, I took a night course in surveying course at the local University of the City in which I was living at the time. A good portion of the course entailed doing field work such as precision levelling and using theodolites to map out geographic features. The final exam, upon which 100% of our final mark was based, consisted almost entirely of math problems; more precisely, trigonometry. My mind went completely blank for the first hour of the three hour exam. I can still feel the panic after all of these years. All's well that ends well: I recovered my senses and ended up with a respectable B+ after burning through the exam with a resolute sense of purpose. Fast forward 20 some years to a remote site where I was assisting a survey tech in mapping out an abandoned military base. He set up a black box with a powerful telescope after which our summer student and myself scrambled -- with an ATV -- all over an area measuring several square miles armed with a reflector rod (I can't remember the actual name of the device). I think the survey tech had to set up maybe three times. After two 8 hour days of this, the techie loaded the contents of his black box into a computer and presto! He had a detailed map of the immediate area complete with contour lines, lakes, buildings, rocks and anything else that struck our fancy. And I didn't see him perform a single calculation. Our summer student, however, was rather tired from all of the racing around. Indeed, everything has changed. Robert ----- Original Message ----- From: MIKE BURKESDate: Thursday, June 8, 2006 10:00 am Subject: Re: Plotting LOP's > Yes Robert I cannot agree more! I am preparing for a career change to > surveying (anyone know of any entry level positions?) and that > field also > has undergone the eletronic transition. With these data collectors > even the > time honored field book is electronic but I can understand time is > money!Mike Burkes > > > >From: Robert Eno > >Reply-To: Navigation Mailing List L@LISTSERV.WEBKAHUNA.COM>>To: NAVIGATION-L@LISTSERV.WEBKAHUNA.COM > >Subject: Re: Plotting LOP's > >Date: Thu, 8 Jun 2006 09:29:30 -0400 > > > > > > > > > >Does anyone besides me see the irony in all of these discussions > about>electronic plotting, excel spreadsheets and turbo-charged > calculators with > >stainless steel exhaust risers against the backdrop of traditional > >celestial navigation? > > > >I will admit I own a Celesticomp V and use it on occassion when I > really>need a quick fix, however, I derive immense pleasure from > actually reducing > >my sights longhand (notwithstanding I use a scientific calculator > to do the > >math), and then plotting the LOPs on a good old fashioned > plotting sheet; > >whether it be homemade or commercially produced. This is part of > the joy of > >the craft and I find it therapeutic and relaxing. Think of sight > reduction>as foreplay. Ya gotta work hard and incrementally in > order to get to home > >base. And when you do, what can be more satisfying than a series > of tight > >LOPs on a plotting sheet and the knowledge of a job well done? > > > >Give me pencil and paper anytime...and yes, a set of trig and log > tables.> > >Robert > > > > > > > > > > > >----- Original Message ----- > > > >From: Guy Schwartz > > > >Date: Wednesday, June 7, 2006 11:40 pm > > > >Subject: Plotting LOP's > > > > > > > > > Has anyone come up with a method of having a computer plot LOP's > > > with Excel or other standard software. > > > I know there are specialized products such as Navigator and Star > > > pilot that will do it. > > > Thanks > > > Guy >