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SIN 871-3 System Design, Engineering and Integration

SIN 871-4 Test and Evaluation

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SIN 871-4 Project 2: Handling Qualities Specification Requirements for Maritime Rotorcraft, VTOL UAV, and Heavy Lift Helicopters

Summary of Services Performed: Developing an aeronautical design standard and simulation toolbox to address the urgent needs of rotorcraft, heavy lift helicopter, and VTOL UAV handling qualities requirements for shipboard operations.

To provide rotorcraft design guidance for military rotorcraft flying qualities evaluation, a modern Aeronautical Design Standard 33, ADS-33E-PRF, was developed under the direction of the U.S. Army as a replacement for the obsolete handling qualities military specification MIL-H-8501A. ADS-33E-PRF addresses rotorcraft flying qualities specification requirements in a novel and comprehensive way so that many of the complicated rotorcraft flying maneuvers can be quantitatively assessed. Compared to MIL-H-8501A, Thus far, ADS-33E-PRF provides design and testing engineers with a comprehensive set of rotorcraft handling qualities requirements for modern rotorcraft design, manufacturing, and testing and evaluation. However, ADS-33E-PRF was developed primarily for land-based rotorcraft operations. The Naval rotorcraft flying qualities requirements were not adequately addressed in ADS-33E-PRF. There is an urgent need to expand ADS-33E-PRF in order to fully address unique Naval rotorcraft technology areas including shipboard rotorcraft handling qualities, VTOL UAVs, and heavy lift rotorcraft design criteria and mission task elements (MTEs).

This SBIR is to develop a technical basis for augmenting the current ADS-33E-PRF to accommodate the needs of improving its applicability to shipboard rotorcraft and heavy lift helicopter flying qualities specifications. The research effort will emphasize the new criteria development, the evaluation methodology formulation, and the analytical simulation toolkit integration. The detailed technical objectives provide the following: Advanced Rotorcraft Technology, Inc.

(1) Accomplish a thorough review of the current ADS-33E-PRF and conduct a comprehensive investigation of existing flight test and simulation data to identify areas which need improvement;

(2) Investigate and evaluate land-and sea-based rotorcraft operational differences and propose new specification criteria for shipboard rotorcraft operations;

(3) develop methods for simulation and/or flight test evaluation of the new specification criteria;

(4) Prototype a new handling qualities evaluation toolkit for shipboard rotorcraft operations that is compatible with industry standard simulation programs, such as FLIGHTLAB or MATLAB/Simulink; and (5) prototype the new toolkit by integrating it with FLIGHTLAB to demonstrate the functionality.