i think I flew into class c airspace accidentally withoutestablishing communication

I still maintain that it is imperative to have a course-line plotted
on a paper chart for all but the shortest VFR flights.

Consider the VFR over the top flight whose pilot hasn't plotted the
course on a paper chart and suffers a sudden electrical system
failure. Terrestrial landmarks are obscured by the undercast, so it's
not possible to estimate bearings from them. Barring the use of hand
held electronics, how is he to ascertain his current position and
route to a safe landing?

I pull out my portable GPS and determine my best option.

Ron Lee