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If I'm correct the iF20 is a one-design class, not a formula class.



The iF20 is most definately a Formula class.

Sadly because all the other builder quit, Nacra decided to turn this Formula class into the Nacra 20 One-design class. They did change the name however, thereby leaving iF20 as being a pure formula ruleset.

Wouter

Wouter Hijink
Formula 16 NED 243 (one-off; homebuild)
The Netherlands