Originally Posted by PatternFlyer
it is not a modification, it is a correction.
Not just myself. there have been more than a few guys with 62" Osiris ending up with up trim after building the plane following the manual.
Back in the earlier days of this thread (April '11) I noted that my first Osiris needed massive up trim and more than one thought I must be doing something wrong and one person thought that the factory could not have made a mistake and it was something I was doing. But the incidence on that plane was WAY off (see post 1816, p. 122
). I didn't have an incidence meter at the time. On Osiris #2, the incidence appears to be +0.05. The flying results, however, are such that the model still needs up trim and flies "tail low". Happy at last to see my version of events validated.... CG @ 7" and AUW 7.0 lb.