SPAD S-XII 1917 Type: Fighter Manufacturer: Société Pour L'Aviation et ses Dérivés Designed By: Louis Béchereau First Introduced: 1916 Powerplant: Hispano-Suiza 8C, Water cooled V-8, 200 hp. Wingspan: 8.00 m Length: 6.40 m Empty Weight: 587 kg Loaded Weight: 883 kg Maximum Speed: 203 km/h Service Ceiling: 6850 m Crew: 1 Armament: 1 ×x 37 mm Puteaux single shot cannon 1× 0.303 in (7.7 mm) Vickers machine gun on some versions
Wright Hispano-Suiza H-3, V-8 Engine Power rating: 242 kW (325 hp) at 1,800 rpm Displacement: 18.47 L (1,127 cu in) Bore and Stroke: 140 mm (5.51 in) x 150 mm (5.91 in) Weight: 281.2 kg (620 lb) Famed designer Mark Birkigt was from Switzerland, but his aircraft engines were built elsewhere. Hispano-Suiza engines were under license in the United States. Improvements in the Model H-3 made by Wright Aeronautical raising its output as high as 280 kW (375 shp).