Always on course to land and in the air: with PNA-navigation devices PNA navigation devices are becoming popular: this is Street navigation devices that also have a customized moving-map software with aeronautical charts. There are such intelligent combined devices including Siebert aviation needs: the dealer is for pilots and Luftfahrtbegeisterten established last but not least the PreisLeistungsverhaltnis of products is particularly appreciated for decades. This applies also for the PDA navigation devices such as the sky map M5. The aviation map material of both devices includes the digital ICAO map for Germany, as well as Visual approach charts and is compatible with the Flight Planner so pilots can effectively take advantage of the electronic flight preparation. The model sky-map M5 offers a large and bright 5 “display with automatically unhidden view approach charts and can be easily operated via touchscreen.