As a “clean sheet” airplane design, Bye explains the eFlyer 2 has been developed from the start to specifically serve the flight-training market. Early prototypes of electric airplanes had limited endurance, but with recent advances in battery technology, Bye’s eFlyer 2 has a target certified reach of 238 nautical miles or three hours of range, plus VFR reserves. “When you look at the typical flight-training mission being 1 to 1.3 hours long, and required cross-country flights being 50 and 100 nautical miles long, our eFlyer 2 fits perfectly into that mission. And it costs just $3 to $4 per flight hour for the electric ‘fuel’ to operate,” he says. This low per-hour operating cost may explain why Bye Aerospace is being flooded with orders from flight schools around the world, including receiving 150 new orders since displaying the eFlyer 2 at EAA AirVenture in Oshkosh, Wisconsin, in July.