;C.500 Simoun I:Experimental, one built. ;C.520 Simoun:Experimental, one built. ;C.620 Simoun IV:Experimental, one built. ;C.630 Simoun:Initial production version with
Renault Bengali 6Pri engine, 20 built. ;C.631 Simoun:Modified version with a
Renault 6Q-01 engine, three built. ;C.632 Simoun:Similar to C.631, one built. ;C.633 Simoun:Modified fuselage with a
Renault 6Q-07 engine, 6 built. ;C.634 Simoun:Modified wing and take-off weight with either a Renault 6Q-01 or Renault 6Q-09 engine, 3 built. ;C.635 Simoun:Improved cabin layout and either a
Renault 6Q-01 or
Renault 6Q-09 engine, 46 built and conversions from earlier versions. ;C.635M Simoun:Military version with either a Renault 6Q-09 or
Renault 6Q-19 engine, 489 built. ==Operators==