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Christopher Sweeney
Northrop Grumman/Logicon Operations & Services
NASA Ames Research Center

Robert Nicholson
JSHIP (Information Spectrum, Inc.)
Patuxent River, Maryland

Joint Shipboard Helicopter Integration Process (JSHIP) is a Joint Test and Evaluation program sponsored by the Office of the Secretary of Defense. Under the JSHIP program is a simulation effort referred to as the Dynamic Interface Modeling and Simulation System (DIMSS). The purpose of the DIMSS project is to develop and test the processes and mechanisms that facilitate ship-helicopter interface testing via man-in-the-loop ground-based flight simulators. Specifically, the DIMSS charter is to develop an accredited process for using a flight simulator to determine the wind-over-the-deck (WOD) launch and recovery flight envelope for the LHA/UH-60A ship/helicopter combination. DIMSS is a collaborative effort between the NASA Ames Research Center and OSD. OSD determines the T&E and warfighter training requirements, provides the programmatics and dynamic interface T&E experience, and conducts ship/aircraft interface tests for validating the simulation. NASA provides the research and development element, simulation facility, and simulation technical experience. This paper will highlight the benefits of the NASA/JSHIP collaboration and detail achievements of the project in terms of modeling and simulation.

The DIMSS project consisted of three phases that follow an approved Validation, Verification and Accreditation (VV&A) process. The first phase will support the accreditation of the individual subsystems and models. The second will follow the verification and validation of the integrated subsystems and models, and will address fidelity requirements of the integrated models and subsystems. The third and final phase will follow the verification and validation of the full system integration. This VV&A process will address the utility of the simulated WOD launch and recovery envelope.

Download the full paper in PDF (4 Mb).

A hardcopy of this document is available by request from Kathleen Starmer.