Hi Matt,

Where is the other thread about gas engines for pattern use? I lost it. It is about the pilot from Taiwan planning to build gasoline engine for pattern. I got a question: Why not consideration to small 4 cycle engines? I just got a trimmer 4 cycles and work incredible well. I think the 4 cycle have more torque at lower rpm that is convenient for pattern or precision aerobatics. Clearly the YS have been proving this fact for years. There could be an important detail that I am not aware. However, I think I need to ask the question. Probably you already tried or discussed. If that is the case, I apoligize in advance.