Who did the flight planning?

7pm tonight (in the UK), got a text from Grant, “Evening Geoffrey, sorry to bother u but we r trying to plot a route from Chateau Thierry LFFH to Chambery Challes Les Eaux LFLE and we are struggling with the mountains in the way, any thoughts?”

Further texts explained that they could get to LFHS Bourg Ceyzeriat but no further.

Out with the map and a nifty (free) piece of flight planning software – AirMate – on my iPad that I’ve been trying for a little while and I came up with the following route for the boys, from LFHS South to LFXA Amberieu en Bugey and then follow the railway line through the valleys to Chambery:

Tsk, who did the flight planning for this trip?