Yes it was the 1/28 scale kits together in one box. The Triplane was molded in red, the Camel in green, and the SPAD in tan iirc. The SPAD was a huge problem for 8 year old me because I did not have any brown paint for the camo, only green and red which I mixed together on the advice of my parents and which predictably looked awful.
I built them all, can't remember their eventual fate but I'm guessing it involved copious amounts of lighter fluid and firecrackers.