Ralf Keber

EASA OPS rules for Flight Time Limitations (FTL) are valid since 18.02.2016.EASA FTL Calc helps you

Multiply Me is a simple but effective trainer for the first multiplication tables with eight trainin

Tools For Pilots is a small collection of tools.It is designed as an universal app with different iP

Cold Weather Altitude Correction is a tool for visualizing and calculating approaches at low tempera