Hello guys! This is my first post in this forum, so let me introduce to you. I am Miguel Marzán from Spain, and I am putting together a Brodak's Strega ARC.
I have build many scratch planes, and this is my first ARC, I am very happy with it because it comes everything straight, well glued and pretty well sanded. I have reinforced the flap horn boxes with fiberglass and also rounded off the leading edge. I also have done a mechanism to take apart the wing and some weight lightening. I have covered the wing and stabilizer with mylar.
And now, I am stuck with the control linkage, and need your expert advice. I am using the standard horns, but in my box came a strange (for me) flap control horn which is not the typical 90º degree between the line formed with the holes and the part which goes inside the flap. I mounted it and glued it as usually. I trimmed the neutral with the bellcrank, flaps and stabilizer aligned in neutral position and everything OK, but when testing up/down travels I noticed that the flaps have the same up/down travel (about 40º, that I think is OK), but the elevator has more down than up travel and less movement than the flaps (less than 30º). I have the carbon fiber rod attached to the lower hole on the flap horn and the middle hole on the elevator horn. Is this normal? I think this travel difference is caused by the flap horn. What do you think about it? Any advice of how can I set up this to have a symmetrical movement with this type of horn?
Thank you in advance and have good flights this weekend!