This is a 1/144 Vickers F.B.5 "Gunbus" aircraft. The F.B.5 was the world's first purpose-built fighter aircraft, serving from February 1915. At first they were parceled out sparingly to protect reconnaissance machines, but as of July 1915 they started equipping full squadrons, with six squadrons of the RFC and No.1 Squadron, RNAS. They served through mid-1916.
This plane comes in 1:144 and 1:285/6mm/1:288 scales. The 1:285 product contains two aeroplanes
, each with a propeller disk instead of blades. They are joined by disposable links to keep the price down, since single-part models are more affordable. You can break the links with nail clippers, wire cutters, or similar.
For more details and gaming information, see https://linen.miraheze.org/wiki/Vickers_F.B.5