SO who knows what the AS350C was ?. One of the early Canadian ships shows c to d to b on its registration.
Mark C-GMEY Serial No 1004
Common Name Aerospatiale Type Certified Model AS 350B
Identification Plate Model AS350C TRANS D TRANS B
Base Of Op. - Country CANADA
Base Of Op. - Province Quebec
Base Of Op. - Location Les Cedres
File Location Dorval Basis for Eligibility for Registration Type Certificate - H83
Type of Registration Commercial
Category Helicopter Weight (Kgs) 1950
Manufacturer Societe Nationale Industrielle Aerospatiale
Year of Manufacture 1979
Country of Manufacture FRANCE
Link to all you need to know about AS350 models
http://www.aviationtoday.com/cgi/rw/...=1003as350.htm