Hi Fred; >I'm not sure I completely understand why at higher speeds >your wing >angle of attack will be less.
Yeah, I know what you mean. That's where this model is a big help because you can see the results. As speed increases, so does lift. Therefore you have to add down trim to stay level, but not much. I tried +2.5 degrees AOA at the root and it makes the fuselage fly even more nose down at high speed. If I were to set the AOA at 0 degrees at the root then the fuselage flies more nose up (or level) at high speed but then it become too high at slow speed when landing. So as Mark said +1.75 AOA with 3 degrees washout is the best compromise I have observed with the AS-5046 root and AS-5045 tip airfoil and having a 0 degree horizontal stabilizer. Flying at 150 mph at low altitude (2500 ft)the fuselage is level. Flying at full throttle at 10,500 ft it flies slightly nose down, I don't know how many degrees (maybe 1.5 - 2.0) but if this flight model is anyway near correct then it's not enough to be conserned about. So, I'm going to stick to the plans on this one. Posted - Tuesday, 02/06/07 2:23 pm Regards Myron (Dan) Freeman Indpls, Ind. 46203 USA mfreem...@indy.rr.com
