Indoor Turbine RC Model!

This post is a bit off topic for a website devoted to electric radio control flight. But below is an incredible video of a true RC model turbojet flying indoors!

This remarkable flight took place at the recent Model and Hobby Fair in Leipzig, Germany. The builders and pilots, Christian Huber and Jurgen Schonle, used a Diamond plan produced by Aviation Design.

Wingspan is 2.4 meters and the length is 3.1 meters. The model weighs about 5.5 lbs and uses eight ounces of fuel. Building materials were 6, 3 and 1.5 mm Depron. The engine is a T-20 Hummingbird Lambert.  The engine can operate at up to 235,000 rpm.

As you can see in the video the model handles very well. Keep in mind there is no prop wash over the control surfaces to aid in responsive flight controls with the turbine thrust exiting out the rear of the aircraft. Note the retractable gear and half flaps, needed for the slow flight in the indoor display area. The pilots report they only needed half throttle for the demo.

Also a wise move to have the fire department literally on scene should anything go amiss with the turbine engine. Amazing!