gps-speedsurfing
Dagresultaten
 
1Marco Bal42,77
2Marco Bal37,84
Low wind.
Also tested a "Sonnstag" 43.5 fin SL2 Proto.
very soft, but it worked ok if there was enough wind.
manual posted because I had put off the GPS during the day, so I had to combine 2 tracks.

Very long time ago I used the formula and especially the 12.0m2
I felt my back during the pumping, so I just waited for a gust.
P7