Description / Abstract:
Purpose:
The purpose of this recommended practice is to establish a standard
format for the presentation of
helicopter mission data, which will provide data required to establish
airframe and/or engine
component life.
Application:
The primary application of the data presented by the procedures of
this document is in the
preliminary design phases of a life cycle. Due to the lack of actual
in-service data, the
information gives the designer the initial estimate of the expected
engine duty cycle.
The preliminary design data should be modified as additional data are
obtained form service
experience. Examination of flight recordings of the pertinent
parameters will provide a more clear
definition of the mission.