A direct decentralized approach to the design of integrated flight/propulsi
on control (IFPC) systems is considered to reduce complexity and validation
drawbacks of centralized designs. The imposed triangular decentralized str
ucture on the IFPC controller allows for separate evaluation of the engine
controller as well as for the evaluation of the achievable performance of t
he overall IFPC system. H-infinity, techniques that require the solution to
a Riccati-like equation are used to develop the design method. This method
is applied to an aircraft aeropropulsive model, and the results indicate t
hat the approach may be a vital alternative to other techniques appearing i
n the literature.