As originally posted by Paul:
Peter von Keyserling sent me an excellent diagram that contains both spar and sail dimensions. I have posted it in the Copperhead section.
Further, Peter writes:
The mast is a 3" diameter aluminum tube by 9 feet 9 inches long. Very similar to a Sunfish mast. A marconi SunChaser (mfg'd by Snark) mast, boom and sail is a drop-in replacement for the Copperhead rig and is a bit faster.