The cycle is one takeoff and landing , meaning engine start,climb,cruise,landing and shutdown. As far as engine is started in ground and shutdown it is not considered as a cycle since no Aerodynamic forces/Loads are acting e.g when engine is tested in Test cell it is not considered as a cycle. In the case of IFSD it will be considered as a cycle as the engine went through most of the phses of a cycle.

P.Raghupathy.

The cycle is one takeoff and landing , meaning engine start,climb,cruise,landing and shutdown. As far as the engine is started in ground and shutdown it is not considered as a cycle since no Aerodynamic forces/Loads are acting e.g. when engine is tested in Test cell it is not considered as a cycle. In the case of IFSD it will be considered as a cycle as the engine went through most of the phases of a cycle.