Pneumatically Pumped Up

Dean Sigler Electric Powerplants, Sustainable Aviation 4 Comments

Robert J. Englar is Principal Research Engineer at the Georgia Institute of Technology’s Georgia Tech Research Institute in the Aerospace & Acoustics Technology Branch. Responsible for research project direction and development of advanced technologies in aerodynamics, he added a different type of discipline to those presented at the fifth Annual Electric Aircraft Symposium last April in Santa Rosa, California. His research combines attempts to achieve low noise, high lift and short takeoff and landing (STOL) capabilities while applying pneumatic power to the equation. Not to be confused with inflatable rafts, pneumatic, in this case, refers to the careful routing of high-pressure airstreams over very different airfoil and high-lift device surfaces, and has led to measured coefficients of lift in the …

The Verticopter® , an Adaptable and Expandable Convertiplane

Dean Sigler Electric Powerplants, Sustainable Aviation 4 Comments

Oliver Garrow, founder, designer, and President of Garrow Aircraft LLC, says it right up front, “My design is completely counterintuitive.”  Pilots are used to counterintuitive thinking.  Push the nose down and add power when you’ve stalled and are heading groundward anyway, for instance.  But the logic of what Garrow is doing becomes apparent only when you see the Verticopter® flying.  Adaptable for varying flight characteristics, the Verticopter can be powered by one or more motors.  A single motor, for instance, would provide a simple solution for a conventional takeoff and landing (CTOL) aircraft.  A short takeoff and vertical landing (STOVL) airplane might use two or more motors.  Full vertical takeoff and landing (VTOL) would require four to six motors.  Motors can …