Sciolistes my post was meant to point out that using DR navigation and map reading is a basic skill that will get you from point A to point B in areas where map reading is possible, however to not use modern aids such as GPS is rather foolish considering all the work it saves allowing you to concentrate on looking outside more.
Ocean flying is not the only place that map reading is not a reliable option, there are vast areas of the earth that are desert and have nothing but light brown sand from horizon to horizon with nothing to use as a point of reference for your location. When flying in the Sarah desert we pinpointed our progress every 25 miles by marking X's on the map using the GPS as our method to determine same......I have been using GPS ever since it replaced Loran and it has been so reliable that I would say it was as close to 100% accurate as I could ever want.
I am building a Cub as a play toy and it will not have any mechanical instruments in it, nor will it have a VOR or ADF or any of those ancient devices in it.
It will have a Dynon EFIS with the engine monitoring system and for navigation it will have my new ATC portable GPS from Anywheremap.
For communication it will have a Garmin radio, intercom and transponder.