Dave Winrock
I'm New Here
I am rebuilding a RV-6 and in fitting the new wing I checked the other one that was undamaged and found it has a 1" forward sweep. The tip is forward of the root edge by that much. Is this a problem?
Dave
Dave
I do have both wings on and spent a lot of time today rechecking my measurements. It looks like I have 13/16" forward sweep on the right wing from end to end. It also looks like I have 2 degrees of angle of attack. The plane had been flying like this for years so I am thinking of just matching everything. Do you think this would cause me any problems?This might seem like an elementary question, but how did you measure the sweep? Did you have the new wing installed? It is very difficult to get an accurate measure of wing sweep without both wings on.
If the new wing is on and has no sweep, and the old wing has 1", then you have a problem. You could sweep the new wing forward to match, or fix the sweep in the old wing. This would require new rear spar attach fittings (not such a big job, don't ask how I know.)
If you took the measurement without both wings attached, I'd wait until you have both wings on, take another measurement then re-evaluate.
Small variations from the nominal sweep and incidence angle will have negligible effect. But, try to get the incidence angle the same on both wings, as close as you can. Measure the incidence at several locations along the span of each wing, and average the results, as there is usually some small variation depending on exactly where you measure.I do have both wings on and spent a lot of time today rechecking my measurements. It looks like I have 13/16" forward sweep on the right wing from end to end. It also looks like I have 2 degrees of angle of attack. The plane had been flying like this for years so I am thinking of just matching everything. Do you think this would cause me any problems?