The Nieuport 20
was a development of the Nieuport 12
with a 110hp Le Rhône 9J rotary engine and various other adjustments. Thirty were ordered by the RFC in 1916, though only twenty-one were delivered. They served with Squadron Nos.1, 45, and 46, but they were disliked. By early 1917 they were pulled from the front lines and relegated to training and Home Defense.
This product comes in both 1:144 and 1:285/6mm/1:288 scales. The 1:285 product contains two aeroplanes, linked by disposable links, each with detachable propeller disks. (Propeller blades are hard to print at this scale.)
For more details and gaming information on the Nieuport 20, see https://linen.miraheze.org/wiki/Nieuport_20