enforcing sound limits
In the NW region it's been made clear that we must follow the noise rules or the CD can ask anyone to land their plane if it is too loud. Three blade Mejzliks are standard on 100-150cc engines, and some have cannisters and are very quiet. I'm fortunate enough to have a quiet engine that can spin a two blade Bolly and still get 10's on sound. At the last contest no one earned a 0 for sound because everyone is doing their part to reduce noise pollution.