Look at this thread
http://www.rcuniverse.com/showthread...hreadid=223084
This plane tends to assemble NOSE heavy. Mine has a Saito 100 on it, (21 oz including muffler) and I still had to move servos and battery to the rear to balance. Read the above thread for details. I suggest you NOT put anything heavier than 21 oz on the nose or you will HAVE to add tail weight to balance.

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