Many people who restore antique airplanes are faced with one major obstacle when putting their airplane back together... "How is it supposed to be rigged?"  Well friends, here is the suggested answer for at least 15 models of Wacos!  This document is the Aviation Safety Release No. 317 Dated April 7, 1949 as distributed by the CAA.  The subject is:  Rigging Data on Older Type Biplanes and states the following:

"Because of the numerous requests for rigging data on the older type biplanes, the following table is presented to assist field personnel in this matter. Only those aircraft of which  there are numerous models still flying are listed. The values given  were taken from manufacturer’s data on file with the CAA. Due to service changes alone in these older aircraft, it is not practical  to assume that all aircraft of a given model can be rigged in accordance with predetermined values and maintain satisfactory flight characteristics. The values shown are therefore presented only as a guide and it may be necessary to vary these values to obtain satisfactory flight characteristics."

The dimensions and angles given in the following table are measured from vertical or horizontal lines determined with the airplane in level attitude. Gap is measured between basic chord lines.