I found that one (actually from the globalsecurity.org website, via GIS), but it's not near good enough. Sadly, it's the *only* drawing I've found. I was promised some scans, but they never arrived. :-[
Would be interesting to know the reasons behind the decidely different sail designs between US and USSR subs. Is it a reflection of the USSR's home base/operational area being more ice covered, hence the shorter and broader sail design?