FSX Supermarine Seafire Mk47. The final version Mk. 47 was powered by a 2375 hp Rolls Royce Griffon 85 engine giving it a maximum speed of 723 km/h (452 mph) at 6242 m (20,500 feet). It was armed with four Hispano 20 mm cannons and up to eight 27 kg rockets or 675 kg bombs mounted beneath the fuselage and wings. This final Seafire variant had a distinctive look and impressive performance. It flew in operations in Korea. Updated for FSX with new airfile, Dp, effects, panel and textures by A.F. Scrub.