Hi Dave, I have 2 YS 110's, one in my Ultimate 10-300 , and one in my World Models Super Chipmunk. Both Engines are running perfectly. I run in desert conditions (very high summer temps, 100 +) at sea level in Kuwait with a rich setting, Cool Power 20, 20 fuel, that great green stuff. The performance on both engines is fantastic.

My question is, will the 110 be powerful enough to fly a Segull Edge 540? I'm not into 3D flying. The recommended size is 120 to 180, but a very good review in RC Model World September 2005 copy (UK Publication) suggested a 120 would be more than adequate. Flying weight (in the review) was 6KG or 13.2 lb. What's your view?