Why is the Curtiss SB2C not generally referred to as Helldiver II?
Short answerAlthough the earlier SBC also carried the name, wartime writers generally did not treat the SB2C as a numbered sequel.
NotesThe SB2C was not generally referred to as Helldiver II. Although the earlier Curtiss SBC also carried the Helldiver name, many wartime writers did not realise that there had been an earlier aircraft with that name. That is the explanation offered for using Helldiver without a sequel number.