Model Variants (Including Prototypes)
E13A - Base Series Designation
E13A1 - Designation covers prototype models and initial production models.
E13A1a - Improved communications equipment; Redesigned float pontoons.
E13A1a-S - Night Flyer Conversion Model
E13A1b - Based on the E13A1a model but fitted with an Air-Surface radar system.
E13A1b-S - Night Flyer Conversion Model of the E13A1b model.
E13A1c - Anti-Ship Model; fitted with downward-firing 20mm cannon.
E13A1-K - Dual-Control Trainer Model