ORIGINAL: Hossfly
You simply list your event as a Fun Fly Event for Helicopters, such as, "XXX Club Helicopter Fun Fly." or whatever. A few airplane guys that do not read may show up, however you tell them that they were not invited.
That is exactly what I want to prevent. By being spelled out as Class C Rstricted to Helicopters then airplane pilots would not even look at it, even if they misread the name of the event.
Now go back and read the AMA rules you posted with an open mind, and you will find that what I have described is exactly what they say. >>>> Ref. Class C Events: The same date and area protection applies as in A contests. If restricted following the guidelines for Class B events, it should be listed as “C-restricted.”<<<<
Now go to Class B CONTESTS, as found under Sanctioned Events. Class B CONTESTS are described there, yet not mentioned in Contest Coordinator Guidelines. That is because no separation protection is provided for "B" contests or for "C-R" events. The restrictions for the B contest are only for PEOPLE.
The official Competition Regulations, General section, has no mention of C and C-R events. C and C-R are only found in the Membership Manual. Again IMO it's all a plan to keep the troops confused. HA!
I AM reading it with an open mind, hence the areas in bold. It seems that you have some insider information and a mind set that does not let you see the difference between airplanes and helicopters, or the difference between the IMAA, IRCHA, and the rest of us helicopter pilots. The heli pilots don't hold grudges against the IRCHA members and the IRCHA members don't have to display their membership as the IMAA people do. As an example there is not a single event in the world that is restricted to IRCHA memers.
ORIGINAL: KidEpoxy
According to the oposite view of the rule,
they would have to list a club swap meet at the hilton as C-Restricted to no-flying,
how else would folks know to not fly turbines or 40% Yaks inside the conference room swapmeet.
You obviously are not an AMA member and not read the magazine. THERE ARE Non-Flying events and flying events. There is no way a non-flying event can be confused with a flying event. Have you even looked at the back of the Magazine at the contest calendar?

You can also go here to quench your thirst for knowledge:
[link=http://www.modelaircraft.org/events/calendar.aspx]AMA Contest Calendar[/link]
Rafael