By applying an elegant aerodynamic alteration to the propulsion system of propellers, rotors and turbofan engines, deltaBurn achieves extraordinary changes to propulsive efficiency. We don’t alter the thermodynamics of the engine core, instead, we change the efficiency the propulsion disk. This results in achieving normal, rated thrust levels at a lower power output form the powerplant driving the propeller, or rotor or fan. Lower power translates into lower fuel burn and results in lower heat rejection losses while significantly lowering stresses on the propulsion disk and the engine core.

The video clip below shows  a high-speed ground run with the left engine modified, i.e., equipped with our unique modification. Pay attention to the engine stack. The numbers are impressive.