This 735nm leg would be the most complex I have ever flown. The flight would require transiting the air space of 5 countries and a climb to 14,000 ft over the Alps to Italy.
Crossing over the English channel.
Despite my best efforts with flight planning and weather analysis, I picked up ice on the wings over the Italian Alps. The plane slowed 20 knots due to induced drag. The RV does not have any de-icing equipment.
Flying through the clouds with higher terrain on either side of the airway was a real test of my avionics and accuracy of the charts.