Optimization of Rotorcraft Flight Following Engine Failure

Dynamic optimization methods can be used to provide quick and low‐cost iterations in rotorcraft analysis and design, and to generate benchmark results for flight tests. In this paper, key steps in the effective application of dynamic optimization methods are identified. Numerical solution algorithms are reviewed. The uses of dynamic optimization methods are illustrated with examples of flight path optimizations for both helicopter and tiltrotor aircraft following engine failure. In these examples, flights after an engine failure are formulated as dynamic optimization problems. Performance indices and constraints are properly selected so that conclusions can be drawn about rotorcraft performance boundaries following an engine failure.