The Propulsive Wing replaces the conventional fuselage with an extremely thick wing with partially embedded, distributed cross-flow fans for both thrust and flow control. This configuration maintains smooth airflow, increasing lift, decreasing drag, and preventing stall. The cross-flow fan propulsive wing is essentially a modular technology, which can be integrated into a wide array of aircraft, in both size and mission specifications. It is fully scalable and easily reconfigured to meet changing requirements. CFF advantages are applicable to many sizes of aircraft ranging from small UAVs to large unmanned and manned military, experimental, private and commercial passenger, and cargo planes. Propulsive Wing, LLC holds an exclusive license to the patented technology, which was originally developed at Syracuse University under NASA funding.
Cross-flow fans, partially embedded within the airfoil section, draw the flow in from the suction surface and exhaust the flow out at the trailing edge. The fans can be powered by any motor or engine. The propulsive airfoil has the ability to draw in substantial amounts of air and maintain attached flow regardless of angle of attack, allowing operation at angles of attack over 45 degrees and lift coefficients of more than 10 at takeoff and landing for extremely short ground roll. In cruise, the combination of distributed boundary-layer ingestion and wake filling increase propulsive efficiency, while distributed vectored thrust provides substantial improvements in pressure drag. A combined propulsor, flow control device, and cargo-carrying platform with 34% thickness-to-chord ratio cross-section (and the potential to increase to 50% or more), the Propulsive Wing provides a compact, cost-effective STOL solution for cargo-transport. With its unique thick-wing design, Propulsive Wings can carry 3 times the payload weight and 10 times the internal payload volume of conventional systems. For this reason, the aircraft is considered an aerial utility vehicle, or AUV. The platform is also highly maneuverable, generates low noise, and offers a high degree of user safety due to the elimination of external rotating propellers.