If I could afford it that would be my engine of choice for 3d. That engine in an Extreme Flight yak would be great. I used to have an UltraRC katana that I wish had a 160. It would have come in under 10lbs with that motor. Anything under 12 lbs and you will have an outrageous combo. If anyone wants to give me or loan me one I'll be happy to put it in a 3d plane. You can right it off as sponsoring a college student. LOL