So, as shown in my Tutorial, I present the Northrop A-17 Nomad:
This is very cool but I'm entirely not sold on the use of grey lines for window panel edges. I thought the mostly-agreed-upon standard was to use a single strip of the original color surrounded by two black lines. From this photo, it seems very similar to the SB2U and TBDs I have just drawn, which were styled by looking at previous USAAF/USN aircraft in FD scale from this period.