Supersonic flight, turboprops and 3-D printing dominated headlines this week for GE Aviation during the European Business Aviation Convention & Exhibition (EBACE) held in Geneva, Switzerland.

Feeding a world expected to house 9 billion people by 2050, poses huge challenges for global food security. Agricultural aviation can help.

When GE Aviation bought the Czech turboprop builder Walter Aircraft Engines in 2008, it hadn’t developed a propeller engine in decades. Over the last seven years, engineers in both Prague and in the U.S. worked diligently to develop a new advanced turboprop engine (ATP) that could change the propeller industry.