Large Body Aircraft Accessories Test Stand

The Large Body Aircraft Accessories Test Stand is a specialized piece of ground support equipment designed to facilitate the testing, maintenance, and certification of hydraulic and pneumatic components used in large commercial and military aircraft. This test stand ensures that critical aircraft accessories function correctly and meet stringent safety and performance standards before being installed or returned to service.​

Technical Details:

1. Dual Independent Hydraulic Circuits: The test stand is equipped with two separate hydraulic circuits, each capable of delivering up to 25 gallons per minute (GPM) at pressures reaching 3,000 pounds per square inch (PSI) or 20 GPM at 6,000 PSI. This configuration allows for simultaneous testing of multiple components under varying conditions, enhancing operational efficiency.​

2. Low-Pressure Dynamic Circuit: An additional low-pressure circuit provides up to 10 GPM at 250 PSI, catering to components that operate under lower pressure requirements.​HII Group Asia

3. Hydrostatic Testing Capability: The stand includes a hydrostatic circuit capable of pressures up to 10,000 PSI, enabling the testing of components that must withstand extremely high pressures.​

4. Pneumatic Testing: A pneumatic circuit utilizing gaseous nitrogen (GN2) operates up to 6,000 PSI, allowing for the testing of pneumatic components and systems.​HII Group Asia

5. Advanced Control Systems: The test stand features both manual control panels (MCP) and a programmable logic controller (PLC) with a human-machine interface (HMI). The HMI displays real-time data, including flow rates, pressures, temperatures, calibration settings, diagnostics, and warning signals, providing operators with comprehensive monitoring and control capabilities.​HII Group Asia

6. Comprehensive Instrumentation: Instrumentation includes high-precision transducers and flowmeters that do not require removal for calibration. An Instrument Verification Set (IVS) can be connected to verify the accuracy of these instruments, reducing downtime and maintenance efforts.​HII Group Asia

7. Optional Pump and Motor Test Console (P&MTC): The test stand can be expanded with the addition of a P&MTC, which enables the testing of hydraulic pumps, motors, and power transfer units. This modular approach allows facilities to enhance their testing capabilities as needed.​HII Group Asia

8. Fluid Compatibility: The system is compatible with various hydraulic fluids, including MIL-H-5606 and MIL-H-83282, or others as specified by the customer.​HII Group Asia+1HII Group Asia+1

9. Safety Features: Built-in safety mechanisms include pressure relief valves, emergency stop functions, and alarms for out-of-range parameters, ensuring safe operation for both personnel and equipment.​

Applications:

• Functional Testing: The test stand allows for the functional and operational testing of hydraulic and pneumatic components such as actuators, control valves, pumps, and motors. By simulating real-world operating conditions, it ensures that each component performs to its design specifications before installation in an aircraft.​

• Maintenance and Overhaul: During routine maintenance or overhaul processes, components can be tested to identify wear, leaks, or other issues. This proactive approach helps in maintaining aircraft reliability and safety.​

• Certification and Quality Assurance: Manufacturers and maintenance organizations can use the test stand to certify that components meet regulatory and quality standards. This is particularly important for components that have been repaired or refurbished.​

• Research and Development: The test stand serves as a valuable tool in the development and testing of new hydraulic and pneumatic components, allowing engineers to validate designs under controlled conditions.​

Technical Specifications Table: