Welcome to aviation.chFind here a lot of aviation related online-tools to lookup or calculate all kind of stuff. All you need is your browser to make them work. Online Calculators
JAR Medical Calculator
To keep aviation safe, health standards must be determined and maintained for all pilots. Calculate online the validity/expiration of your JAR medical.
Logbook time calculator
This calculator help to easily sum up times in the hh:mm format.
Convert units of measurement
such as Temperature, Length and many others often encountered in aviation and engineering.