Magnum or OS .52 plenty of engine. Flies very scale, wide speed range. Lots of rudder in turns. Scale aerobatics, nothing insane. Goes together easily, take your time figuring out the cabane struts. MT engine mounts aren't the sturdiest, they actually flex quite a bit. NOt so much a problem with a small engine. All in all a great plane, a little pricey but well worth it. Looks fantastic in the air.

Andy