X-Plane 10.30+ Sukhoi Shkval VTOL Fighter. Unlike most VTOL fighter concepts where the aircraft were `flat risers' taking off in the flight attitude, the Shkval was a supersonic tail sitter VTOL fighter concept in a similar vein to the Ryan X-13. Designed to be launched from a transporter-erector trailer similar to a mobile missile launcher, the Shkval would have been an excellent point defence fighter requiring a minimal operational footprint. Documentation includes a short history of the aircraft, flying tips and credits. By Graham Algeo.