Plus shipping and handling * NOTE 1: All specifications for S1-C are for the updated CAD plans version. The CAD plans are highly recommended for all new projects. Please note that the CAD plans were drawn using CAD software, but are printed on paper. They are NOT available in electronic format. ** NOTE 2: S1-SS plans are SUPPLEMENTAL to the S1-C Plans and show ONLY the new SS wing construction. You must have a full set of S1-C plans AND the S1-SS Supplemental plans in order to build a Pitts S1-SS. Purchase Plans Online!