I checked our file on the 204BA. The surface area "should" be 6.8 sq. ft.
measured in the "traditional" manner: SQR(Ae^2+Ab^2). This is what YS 1.5
calculates also. The separate areas for the elements (Ae) and boom (Ab)
are: Ae=6.15 and Ab=2.9. I beleive that the max area used by the
cross-flow principle would be Ae (6.15 sq. ft.). The manual shows 7.27 sq.
ft. I am not sure where this comes from. I'll try to locate the old
files. I would not worry about the element clamps, however you may wish to
consider the boom-to-mast bracket since it presents a flat surface area to
the wind. Perhaps the 7.27 sq. ft. comes from the CW setting and the
73 Roger WB0DGF
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