Can anyone tell me where to get hardware other than Wicks or Aircraft
Spruce?
These are good places to look, but they don't have what the plans call
for.
Maybe someone can point me in the direction of finding rectangular steel
tubing.
Not square. Somewhere in the neighborhood of 1/2"x 1-1/2"
Try Dillsburg Aeroplane Works. See the back of Sport Aviation or
a Google.
Dave 'metalhead' Hyde