40% scale Extra 330 Indoor!

My friend from Germany Thomas Schunk demonstrate his amazing 3 meter wing span Extra 330 SC in 2014 year Dortmund intermodellbau expo. This is unique RC model build for show flying in indoor areas. Plane is build mainly from light weight depron with some fiberglass and carbon reinforcements. Equipment used in this plane: Four (~10kg) servos. 70a esc. additional Jeti bec. 6s 2500 mah battery pack Hacker A40L with gearbox 6,7:1 Special light propeller , milled and covered with film. Ready to fly weight is