In development 作業中
Some more useful links for flight planning:eAIP Japan: includes all the information about Japan's airspace
Check AIC 052/20 for flight planned routes
羽田空港飛行コースホームページについて: a site showing the runways and approaches in use for Haneda airport
Squawk.ID: a site ran by VATSIM Japan Division (VATJPN) controllers; explains more about the Japanese airspace!
Lastly, Our fleet list: has the PBN capability, ModeS, Seat Configuration, and operation range information to enhance your experience.