Polar Chart for C30 TRBS Owners have questioned the optimum run angle for best VMG to a down wind mark.  Here are the polar numbers for a C30 Tall, ( w/ folding prop and standard keel) .  Below are 6 wind speeds and associated vmg and run angles:   

WIND    VMG     ANGLE (optimum)
 6           3.194       143
 8           4.055       145
10          4.862       158
12          5.588       166
16          6.517       174
20          7.158       175