Hi everybody, I'm a french Flight Simulator add-ons developer and I have developed a free aeronautical calculator and converter who called FsUcalc. This software can calculate different formulas like the ideal vertical speed, the route time (including SIDs, STARs and Approach), the plane consumption, different VFR calculus (drift, ground speed, cross wind), ... More informations here : http://www.fs-utilit...roduits/fsucalc I've been fully translated the software in English and it will be released Sunday, December 15th. You can follow this release on Facebook and Google+ and already register to www.fs-utilities.com to be inform exactly when FsUcalc will be released. If you have any answers you can post it. Best regards,