Powered by a Rotax 914 turbocharged engine, the Stemme S10VT and the new S12 represent the latest in touring motorglider technology. With a 50:1 glide ratio, 18,000-foot service ceiling and day and night VFR capability, the aircraft can be used for competition and long-distance travel. Aviation Consumer magazine editor Larry Anglisano took a closer look at the aircraft at the Soaring Society of America's national convention in Greenville, South Carolina.