Area navigation using GPS has been around (for us) for about 30 years. Before that we did mostly the same thing using LORAN for a while. But, the National Airspace System was designed around VHF Omni- Range navigation stations, VORs, that long preceded GPS. Technically, there are three types: VORs that just provide azimuth information, […]

Albert Einstein is reputed as saying that everything should be made as simple as possible, but no simpler. In March, Manage Your Electrons, attempted to explain certain concepts and principles without overwhelming readers unfamiliar with batteries and electrical systems. In so doing, we may have violated Einsteins directive, because weve gotten a lot of mail complaining at our oversimplification. So, here is a more detailed explanation of much of what we conveyed in that article.