Hi All
Having filled and sanded our wing surfaces, we thought that they were pretty
good and thus ready for smooth-prime. So smooth-prime we did. However the
smooth-prime and a trusty lead lamp show that things are not as good as we
originally thought. Most of the inconsistencies are easily rectified, however,
it became apparent that there is a dip just in front of and just behind the
spar. It is only small, and cannot be seen in normal lighting conditions. I
would say that the dip is about 0.5mm deep approximately 2cm either side of the
spar.
So the questions are this.
Do we
a) Leave it alone as its effect on the airflow over the wing will be
negligible
Or
b) Fill the dip and sand to blend it into the surrounding surface.
If a, what is the best method? You see, when we were filling this part
before, it was filled high and sanded down until the cloth on the spar could
just be seen under the filler. I guess that what was happening was that the
skin over the foam was flexing in a downward direction whilst being sanded and
the spar wasnt, hence the discrepancy in the curve.
Any ideas that might help us on this issue?
Cheers
Eddie
G-SELF. Jabiru 3300 powered classic
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