With the risk of being mocked I still like low-tech when possible....I
am setting the wing incidence angle at the moment and have found that I
get better than the required precision when I use a 1/4'' tube with
water in it attached to the leading and trailing edges- that gets me a
precision of less than the 0.05' called for in the book, 1mm up or down
and you see it easily.
This also avoids the errors that can accumulate from the various tools
the book calls for but admittedly may not be equally good for all
purposes, over shorter distances it may not be so precise so extensions
to the surfaces may be needed for a good reading.
The price of course, is around 50 cents plus water and then there is the
time needed for calculations, but there is no way to get a false reading
unless I allow air bubbles to get trapped in the tube....
Happy new year to all,
Alex, trigear 529
|