Advanced Materials for the Design of Lightweight JP5/JP8/DS2 Fueled Engines for Unmanned Aerial Vehicles (UAVs)

The XS-Air engine should provide the highest power density with both diesel and gasoline piston engines. This would be especially true in smaller engines in where turbos or blowers are impractical. The XS-Air engine can solve the aviation industry problem of the potential phasing out Av-gas. The spark ignition XS-Air engine should be able to burn pump gas and still generate extreme power densities, due to its two stroke operation, constant boosting pressures, large working stroke, and the reduction of parts and weight of the engine. The SI XS-Air engine is highly boosted during start up and idle and its boost will not change when reaching full rpm. The diesel XS version will even be more attractive than the gasoline XS engine as it will be more powerful, the fuel consumption will be much less, the heat rejection will be much lower, and as diesel fuel does not contain lead it is much more environmentally friendly than Avgas.