FSX/P3D. Two of the best rides in Aerosoft's toy chest have just been updated! The PBY Catalina has been updates to version 1.21 with P3Dv3 installers and the Twin Otter updated to version 1.12 which addresses a number of fixes including full P3Dv3 compatibility. See the full change logs via the source link. What is that Twotter team up to these days anyway? Hope it's something good!