Dan,
The drawing njumber in the 1st post is a Vought0Sikorsky number. Out Courasir is, in fact, a Vought-Sikorsky unit and all our drawing are Vought-Sikorsky drawings. Vought and,later Chance-Vought inherited these, but they all say "Vought-Sikorsky" on the boarder in the master drawing information area.
No real point, just FYI.