ORIGINAL: Qld Flyer
Hi guys. I've just bought a Seagull AT6 Texan and the recommended engine size is .46 - .52 2S or .72 - .82 4S. The model should weigh in around 3.5kg ( ~7.5 lbs for our American friends). I was originally going to put a Saito 82 FS in it but I've read lots of reports about this being a very thirsty engine. The fuel tank provided is only 200cc (7oz) which would give me a flying time of around 7-8 minutes. Would an OS 70 FS have enough power to fly this decently and any idea what the fuel consumption is for it?
Thanks
Shane
Hi Shane, Initially, I assembly my seagull At-6 Texan 40 size(wingspan 62 inches, fulselage 51 inches) with ASP 70 four stroke engine and use 12 X 8 APC propeller . During maiden fly, it look like the tail is heavy but i still able for safe landing(but cowling crack a litle and canopy broken but repairable). Therefore i use CG gauge to measure 5-6 cm (base on the manual book) from the wing leading edge. I found up it took approxiamately 200g weight to balance this plane. Therefore I change the engine to Magnum 91 four stroke and landing gear's wheel to 2 3/4 inch and add another 150g to fire wall to balance the CG (I used 6.5 cm) and the fuel tank remain unchanged. On full throttle it fly approximately 5 minute 40 second but I usually fly 1 minute full throttle(take off) 7 minute half throttle and 1 minute for landing and spare another 1 minute for emergency. I use 14 X 6 MA propeller.