ORIGINAL: Gordon Mc
If distance is the issue, fix the distance - or at a minimum use a combo - such as no X mph+ passes more than Y ft out from the flightline or more than Z ft to either side of show central.
You wanna measure speed AND 3 dimensional placement of the plane......we can't even enforce a 55 pound rule, and all you need for that is a bathroom scale!
ORIGINAL: Gordon Mc
... and so, when there is an incident involving a 55lb giant scale racer that was going 240+ mph before it hit the bus full of nuns (d'ya remember them from the other thread ?

), and it is shown that the AMA has no speed limits in place for these aircraft, then what ? The fact that the AMA has imposed speed limits on some models, while ignoring other types, would probably
increase the chance of a succesful prosecution against the AMA, not decrease it.
Well right wrong or indifferent, the EC says that they think an isolated case of property damage or even death (even of nuns and orphans) will be handled by the insurance coverage we have now. The nightmare scenario is fire, burning 1 million acres of California or Florida and getting picked up by the national media. The feeling is that turbines and turbines alone have a uniquely greater chance of causing such a scenario to occur, hence the special consideration for turbines.