RE: any body have the kit of 1/2a hobby shack sst?
Ooops sorry didn't know the pedigree of the silly thing. I just bought the kit, presumably like everybody else, because it was too cheap to pass up.
A friend, who builds stunters (to perfection) CNC cuts his foam cores, mostly hollowed, on the machine and uses balsa sheeting and capstrips, then carefully removes the foam in the bays between the cap strips.
He claims there is still a slight weight gain over a built up wing, with the advantage being a worthwhile increase in rigidity.
A compromise he deems worth the effort. All one needs is a CNC foam machine and the skills to use it :-)
My view remains steadfast : the 1/2A SST should stay a forgotten footnote, it really wasn't a memorable item.