Dear Guy, Personally, I don't understand the spirit of the AA rules if we accept expensive powerfull heavy jet on one side and light propeller plane on the other?! (like Robert Herzog told you as well) I don't understand either why biplane, triplane, etc. shoud be keept away from a competition which mix prop plane, helicopter and jet... Keep it affordable: A 3m plane is expensive! But to travel with is even more expensive and difficult. (some wellknown and sponsorized pilots keep their plane on the other side of the Atlantique for the next event due to that reason!) That's why we need limits. Keep it natural: The 8kg limit from Donatas is a very good start. A usual 8kg biplane is around 1.8m and a 8kg monoplane around 2.2m (fuel, smoke, battery, etc included?...) As told before, this allows cheaper gas engines. If somebody can build a 2.5m biplane at that weight: congratulations, that's just well done! The spectators will see a different kind of flight: "Great isn't it!" Keep it free: About the noise: throttle is a proportional control. You can really enhance a flight on music with the noise of your plane (engine, but prop or even the whistling of the plane :-) If nobody can hear the music, I don't think the points will be good. Why a pilot could not make the engine/prop screaming during some hard rock or classical fortissimo!? Just my 2cents Best regards, Benoit ----- Original Message ----- From: Guy Revel To: ciam-f6-wg@xxxxxxxxxxxxx Sent: Wednesday, July 08, 2009 2:52 PM Subject: [CIAM-F6-Working_Group] Artistic Aerobatics model weight Dear all, As most of you know, the amendment proposals that were not discussed during the last CIAM Plenary will be presented again at the next meeting. One of these proposals may need further discussion. It concerns the deletion of the weight limit for F6A airplanes. It has been pointed to me that the amended rule (2 m maximum wingspan, no weight limit) woudl open the way to multiplane monsters (think about a 2-metres, 15 kg, DA-150-powered Ultimate. This would obvioulsy negate the spirit of the present AA rules. One of the options I was offered was to further limit the wingspan for biplanes, as it is done with some freestyle classes. However, thinking about it and noting the fact that biplaned have completely disappeared from the competition circuit for years., I tend to think that the most adequate solution would be to limit AA competitions to monoplanes. Your input, please. Guy R.