Very Low Noise, High Efficiency Propeller Designs for Small UAVs

"The objective of this project is to develop an expansion chamber/exhaust muffler system which will optimize the fuel economy/power density of small two-cycle compression engines while simultaneously providing 16 db or greater noise reduction.State-of-the-art validated computer models will be employed with the objective of minimizing the number of experimental iterations required to achieve the objective. The current commercial practice for producing expansion chmber/muffler systems fortwo-cycle engines (chainsaws, weed eaters, etc.) is divided into two categories: Low volume engine production (less than 1,000 units per year): The engine producer contracts with an outside supplier for the design, manufacture, and supply of the unit. The current business model of C-K Technologies would be to act as thedesigner/supplier of systems for the low-volume two-cycle engine applications. An identified market exist specifically for noise reduction of model airplane engines. This market will be served by producing product for the engine producer as well as kitsfor retrofitting existing engines. These kits would be provided for distributors who provide product for this market. Mid volume/high volume engine production: Due to the need to be cost competitive in the marketplace, the engine manufacturer typically produces the expansion chamber muffler integral to the engine manufacturing operation. The objective of newand advance