Tony,

Your opinion that models will not be developed for in AMA for a 5.5 kg limit is clear enough. It is your opinion.

Between RCU, the NSRCA list, and KFactors going back 20+ years, I have been quite vociferous regarding the distinction and differences between AMA and FAI F3A. It is not a difficult concept for me. I have always advocated AMA do what is best for AMA and not blindly FAI F3A.

My comments are based on the perspective of a competitor and competitive human nature - be it in pattern, or any other sport / event. Competitors push limits and exploit rules; a well proven concept in many competitive events, not just pattern.

I agree with many of your concerns, and think you make a number of good points. Decreasing the cost of pattern would be a good thing. Increasing accessibility to pattern and increasing the number of participants would be good things. Increasing safety margins is a good thing. I don't think increasing the weight limit will ultimately accomplish any of these things. If an increased weight limit went into effect for AMA, what would happen in 1 to 2 years when planes were built 1 oz over the new limit (overweight because of heavy paint, heavy lipos, heavy motor, heavy servos, etc)? We would be in the same situation all over again, just with heavier planes. So long as there is a weight limit, there will be planes pushing (and exceeding) the weight limit. And increasing the weight limit will provide an opportunity for AMA pilots to raise the performance bar by utilizing/exploiting the added weight - new designs, higher power systems, or something not yet considered - all of which or none of which may be realized - none of which could be realized if the weight limit is left alone.

Regards,

Dave