I just got off the phone with the City of Dublin (In Ohio) and they allow ANY types of planes with ANY sizes and ANY weight as long as they don't exceed AMA's limit in the local parks like the 78-acre treeless park by my house. What's best is you don't even need AMA registration in this county and city to fly in Gov't owned property. Dont' get me wrong, you can still get into trouble if you cause damage to property or people.
Rock on... (this statement came from the parks supervisor so what he/she says goes

)