This topic is kind of funny when you think about it. We sailplane
pilots used to pride ourselves on being immune to "power failures" as
opposed to power pilots who would wet their pants at the thought of
losing power. We need nothing but the sun and our brains to keep us
aloft. Now I can think of at least two times in the past year I've
heard sailplane pilots announce over the radio they were terminating
their flights because they had electrical problems and their flight
computers were not functioning properly.