Skydemon reliability
SD is a great product and the CAA seems to be waking up to the fact it (and other GPS systems) are critical for the prevention of airspace conflicts. We all seem to be relying on it more and more. Some people seem to have stopped carrying charts.
I have only ever had one hiccup with it while threading the gap between Heathrow and Wycombe the dreaded 'no data' message came up . Fortunately it resolved itself quickly and I also had a marked chart to hand.
My question is, has anyone else ever had it fail in flight? Do we all trust it now to use as primary nav?