KSP 1.7.2(Now 1.7.3) and TweakScale used. I've played this game more than 3 years and that helicopter and it's swashplate are my best work. Almost 6 month ago I created a helicopter with Infernal Robotics and huge internal swashplate, but it was difficult to fly because of incremental control and some freezes of the game. Breaking Grounds inspired new life in this old vehicle... EY-30 It's kind of a semi-copy of Mi-26 Parts: 180-186 Main rotor diameter - 25.8 m (8 blades) 110-140 rpm