Mission Equipment Package Research Articles

한국형 기동헬기 자체진단 시험 설계 및 입증

임무탑재장비 체계는 한국형 기동헬기의 임무 수행을 위해 전자장비 구성품들을 통합한 항공전자 체계다. 자체진단 시험은 숙련된 요원, 특수 시험장비의 필요성을 감소시키주며 체계의 정비를 위한 비가동 시간을 줄여준다. 갈수록 복잡성이 증가하고 있는 항공전자 장비에 대한 자체진단 시험 기능의 필요성이 더욱 커지고 있다. 본 논문은 한국형 기동헬기 항공전자 체계에 구현한 자체진단 시험 설계 및 입증에 대해 설명한다. Mission Equipment Package(MEP) system is a collection of avionic components that are integrated to perform the mission of the Korean Utility Helicopter(KUH). Built In Test(BIT) reduces the need for skilled personnel and special test equipment, and reduces maintenance down-time of system. The increasing complexity of avionics equipments has resulted in an increased need to provide BIT functions. This paper describe the development and verification for the KUH MEP system BIT.

한국형 가동헬기 임무탑재장비 요구항법성능 구현

A number of navigation improvements are envisaged : Differential GPS - WAAS, LAAS, and Performance Based Navigation. The GPS receiver verifies the integrity(usability) of the signals received from the GPS constellation through a process called receiver autonomous integrity monitoring(RAIM) to determine if a satellite is providing corrupted information. This paper describe the RAIM function and Performance-Based Navigation implementation of Mission Equipment Package(MEP) for Korean Utility Helicopter.

한국형 기동헬기 임무탑재장비체계 설계 및 입증

Mission Equipment Package(MEP) system is a collection of avionic components that are integrated to perform the mission of the Korean Utility Helicopter(KUH). MEP system development is classified mission-critical embedded system but KUH MEP system developed including flight-critical data implementation. It is important to establish the good development and verification process for the successful system development. This paper describe the development and verification process in each phase for the KUH MEP system. MEP system design is verified through the qualification test, system failure test and compatibility test in System Integration Laboratory(SIL).

한국형기동헬기 임무컴퓨터 비행필수기능 설계

Avionics system tends to be designed to have the integrated architecture, and it is getting difficult and complex to verify the flight-critical function because of sophisticated structure. In Korean Utility Helicopter, mission computer acts as the MUX Bus Controller to handle the data from both communication, identification, mission/display and survivability equipment inside Mission Equipment Package and aircraft subsystems such as fuel system and electrical system while it is interfacing with Automatic Flight Control System and Full-Authority Digital Engine Control via ARINC-429 bus. The Flight Displays which is classified as flight-critical function in aircraft is implemented on Primary Flight Display after mission computer processes data from AFCS in order to generate graphics. This paper defines the flight-critical function implemented in mission computer for KUH, and presents the static and dynamic test procedures which is performed on System Integration Laboratory along with Playback Recorder prior to flight test.

Using structured benchmarking to fast-track CMM process improvement

Sikorsky Aircraft designs and manufactures helicopters. In today's environment of glass cockpits, fly-by-wire control systems, and special missions, we are also in the integration business-which, from this article's perspective, translates into embedded software. We develop large systems in-house, such as the Comanche Mission Equipment Package, comprising hundreds of thousands of lines of code, and we are deeply involved in enhancing large legacy systems for our Black Hawk and Seahawk platforms. Sikorsky Aircraft in pursuit of a Capability Maturity Model rating, determined that software benchmarking would help its process improvement and assessment effort. The article describes how Sikorsky prepared for benchmarking trips, structured its questionnaire, aggregated results and evaluated lessons learned.

Mission and concept evaluation for a multirole, mission-adaptable air vehicle

The paper describes the results from a concept exploration study to assess the feasibility of a modular/reconfigurable rotorcraft designated the “multirole, mission-adaptable air vehicle (MRMAAV)”. The initial phase of the study consisted of developing mission and operational requirements for the vehicle. This phase resulted in the assessment that the aircraft should be considered primarily an attack vehicle but with the capability, through reconfiguration, for performing several alternate missions. Evaluation of several high-speed rotorcraft concepts led to the selection of two platform configurations for further study. These included the variable-diameter compound helicopter (VDCH) and the joined-wing tilt rotor (JWTR). Detailed sizing efforts focused on the VDCH as the more feasible of the two concepts. Innovative aspects of the air vehicle include variable-diameter main rotor, turboshaft/turbofan convertible engine, virtual-canopy cockpit, and reconfigurable payload bay. The mission-equipment package is highlighted by an autonomous remote sensor platform. The study identifies areas which best lend themselves to a modular or reconfigurable design approach and describes in detail a candidate vehicle meeting the MRMAAV objectives.

Subjective Measurement Assessment in a Full Mission Scout-Attack Helicopter Simulation

A full mission helicopter simulation was conducted in support of the US Army's Rotorcraft Pilot's Associate Advanced Technology Demonstration. Four crews flew four doctrinally correct scenarios under two mission equipment package conditions. The Advanced Mission Equipment Package (AMEP) contained additional equipment and longer sensor ranges than the Baseline Mission Equipment Package (BMEP). Following each run, pilots filled out the NASA Task Load Index (TLX) workload scales and a perceived situation awareness (SA) scale. TLX ratings were lower for the AMEP, while SA ratings were higher for the AMEP. A similar inverse relationship was found in the scenario effects. A stepwise multiple regression found a significant relationship between SA ratings and three of the component TLX subscale ratings. Both perceived workload and situation awareness ratings indicate a benefit from the advanced technologies available on the AMEP. These measures were also sensitive to the varying demands of the scenarios and pilot responsibilities.