RE: Dynaflite 81" Spitfire
Big improvement with the OS160/18x8 prop but mine full up weighs in @ 16lbs. The extra weight is from covering (super coverite/paint) and the extra scale details. All in all, 16lbs for an 80" warbird is pretty good, 12lbs would be great. It balances perfect with the OS160. With the OS1.08 I had to add some lead in the nose. If you're really close to 12lbs, the OS1.08 will fly it just fine. With the OS1.08 it was clocked at 90 mph on a level pass. With the OS160 it's got to be more like 105 mph. Again in the air with OS1.08 it was fine but on take off I felt it was borderline. The G-26 would be a good power match but I think it's to bulky for that narrow nose. Nice thing about the OS160 is it's not that much larger than the OS1.08 It really is a great flying airplane, I'm still flying mine after 5 years. Hope that helps.