With the failure of the Seamew the United States Navy issued a new specification for a scouting floatplane in June 1942. On March 31, 1943, an order for two prototypes was placed with Curtiss.
In the rear of the fuselage a stretcher could be carried.
Two 100 lb / 45 kg bombs could be carried in the central float.
When equipped with the ASH radar pod under the starboard wing for anti-submarine duties it could carry two 250 lb / 113 kg bombs under the port wing.