scope:

Use/Relationship: The Loads/Environment Spectra Survey (L/ESS) System Development Report will be used to define the system (for example, flight hardware, flight data download equipment, data processing, data transmission, software) on which to perform an L/ESS to obtain operational usage data that can be used to update or confirm the design spectrum, identify when usage changes occur that warrant an update, and provide the data needed to establish or update a baseline spectrum.

a. The L/ESS System Development Report shall identify the time-history data to be recorded, such as, vertical and lateral load factors, roll, pitch and yaw rates, roll, pitch, and yaw accelerations, altitude, Mach number, control surface positions, selected strain measurements, ground loads, and aerodynamic excitations. The report shall identify the data to be recorded to characterize the thermal and chemical environments within the aircraft and associated with aircraft basing. The report shall identify instrumentation and/or sensors that are part of the L/ESS system.

b. This DID contains the format, content and intended use information for the data deliverable resulting from the technical requirements described in Task IV of MIL-STD-1530, Aircraft Structural Integrity Program (ASIP).

(Copies of this document are available online at http://quicksearch.dla.mil.)