More muscle for mid-sized planes! Put...
Put more power in your .40-size model the easy way: just drop in a 55AX engine. It has the same bolt pattern as the 46AX for no-mod retrofits, but it also has the added displacement it needs to swing bigger props — and everything you need for better 3D, precision and sport flying.
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14.3 oz (404 g) w/o muffler
18.52 oz (525 g) w/ muffler