- easy to use & reiable Rules of Thumb
- simple formule for quick results
- easy explanations
- quick tips for may situations
- proven for any type of aircraft
- for all phases of flight
- for every pilot
Aero International "....the knowledge of math every pilot should have..."
Roger Magazin "...handy...made for pilots..for the next season a nice gift or just for yourself"
Gerhard Grohmann is an Airline Captain on Boeing 747-400, a Flight Instructor, a CRM trainer and a helicopter pilot.