carl goldberg makes a 30% ultimate arf thats meant for a 75cc but i would definitly go with the aero-works 33% ultimate and the zdz my friend has an a.w. edge with zdz 80 and verticals pretty good think how much h-9 sukhoi weighs the a.w. shouldnt be any much more but really try to keep it light, lithiums, use 1 servo on all the surfaces even rudder and CF goodies and it can really come out really light you can easily loose 3 or more pounds compared with people that use da twins and 3w twins theres a website troybuiltmodels.com that tells u to go with the 80 less weight almost same power less money and you can get all of the CF stuff there too ive flown and seen a bunch 100cc planes with zdz80's on them they even fly better then the ones with 100cc twins on them you hav probably already gone through this with the h-9 sukhoi but it will be a task to get it to balance rite but you can usually just lengthen the engine box no biggy i think the reason why everyone is using a twin like a DA or 3W is because they dont rattle your plane as much and there much more quiter than the 80 but with the proper exhaust on the zdz you can get it pretty quite also i think is because the 3w and DA are know as the so called caddilac of engines, but newayz thats juz my 2cents,dean

X-treme Dean

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