Jim, Looking at your 1020 map as well as 1610 map, it seems that all the lines are straight. Since a bearing is really a great circle, shouldn`t they be curved on that map projection? Or is it possible for your base map to be based on great circles even tho we don`t really know the center, since that is what we are trying to locate? As someone else mentioned a while ago, NOT using great circles, but drawing straight lines on a flat map can cause large errors at several hundred miles distance, defeating the purpose of this exercise.
This is a separate issue, of course, from making correxions for magnetic declination, which is also essential if using a compass. 73, Glenn Hauser ____________________________________________________________________________________ Do you Yahoo!? Everyone is raving about the all-new Yahoo! Mail beta. http://new.mail.yahoo.com _______________________________________________ IRCA mailing list [email protected] http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: [email protected]
