Name the term used to describe military aircraft designed primarily for air-to-air combat against other aircraft, an example being the Albatros Dr.II, a German prototype single-seat triplane, fitted with twin machine guns?
Albatros Dr.II The Albatros Dr.II was a German prototype single-seat fighter triplane, the sole example of which flew in the spring of 1918. It was similar in many respects to the D.X biplane, employing among other features the same 145 kW (195 hp) Benz Bz.IIIbo engine and twin 7.92 mm (.312 in) machine guns.
Gotha Go 149 The Gotha Go 149 was a military aircraft developed in Germany in the mid-1930s for training fighter pilots. It was a conventional low-wing cantilever monoplane with tailwheel undercarriage, the main units of which retracted inwards. The wing was wooden, while the monocoque fuselage was metal. Two prototypes were constructed, and an armed version was also proposed as a light home-defence fighter ("Heimatschutzjäger") armed with two 7.92 mm (.312 in) MG 17 machine guns, but the "Luftwaffe" did not purchase either version of the design, and no further examples were built.