Advanced sealing technologies are needed for heavy fuel internal combustion (IC) engines that power small Remotely Piloted Aircraft (RPA).Advanced sealing and material technologies will be evaluated to provide improved durability, improved performance and reduced friction in small heavy fuel engine classes. Improvements will be established in engine designs and the material and coating pairs to reduce wear, reduce friction, reduce leakage and provide longer engine life. The material pairs and coating improvements that are discovered in this Phase I program will be applicable and transferrable to engine classes of rotary, reciprocating and new technology engines.
