Multi-engine aircraft power plants and associated operating methods are disclosed. An
exemplary multi-engine power plant comprises a first turboshaft engine and a second …

A system is provided for multi-engine coordination of gas turbine engine motoring in an
aircraft. The system includes a controller operable to determine a motoring mode as a …

(57) ABSTRACT A system is provided for speed control during motoring of a gas turbine
engine of an aircraft. The system includes an air turbine starter, a starter air valve operable …

A system is provided for alternating starter use during multi-engine motoring in an aircraft.
The system includes a first engine starting system of a first engine and a controller. The …

An aspect includes a system for pre-start motoring synchro nization for multiple engines of
an aircraft. The system includes a first engine starting system of a first engine and a …

A system is provided for cross engine coordination during gas turbine engine motoring. The
system includes a first gas turbine engine of a first engine system, a first air turbine starter of …

A system for gas turbine engine motoring includes an air turbine starter coupled to a
gearbox of a gas turbine engine and a starter air valve in fluid communication with the air …

A method and control system for an aircraft using a gas turbine engine is provided. The
control system includes a controller that includes a load and engine control modules and …

Abstract Systems and methods for determining torque split among engines in a multi-engine
system using adaptive engine models are provided. In one embodiment, a method of …

Methods are provided for ensuring non-excessive variation of a gradient of an applied split
bias versus firing temperature of a gas turbine engine. It is determined that an incremental …