SAE ARP 4755 Turboshaft / Turboprop Gas Turbine Engine Test Cell Correlation

The SAE ARP 4755 standard, developed by the Society of Automotive Engineers (SAE), includes a recommended practice and test method for the correlation of test cells used for performance testing of turboprop and turboshaft engines. This standard applies to both dynamometer and propeller-based tests.

Test cell correlation was performed to determine the effect of any particular test cell enclosure and equipment on the performance of an engine relative to that engine's baseline performance. Although no original equipment manufacturer actually refers to the standard, the experience and knowledge of several original equipment manufacturers contributed to the development of this standard. Each engine manufacturer has its own practices regarding correlation and these are used by these original equipment manufacturers to establish certified test facilities.

The SAE ARP 4755 standard benefits the original equipment manufacturer, commercial users, repair stations, military warehouses and mid-level maintenance activities. The special cases where the information in this standard will be useful are as follows:

• Helping to correlate test cell data between engine and airframe companies supporting commercial and military requirements
• Helping to provide a method for associating test cells for military maintenance facilities and commercial repair stations
• Helping to create and update correlation applications for new test cells and maintain existing test cells
• Assisting an engine manufacturer's facility in correlating test cells used for engine development and acceptance to the applicable engine model specification

Known turboprop/turboshaft test cell correlation methods include, but are not limited to:

• Back to back
• Between cells
• correlation engine

The correlation engine procedure is the most common method recommended for correlation of a motor test cell.

Among the numerous test, measurement, analysis and evaluation studies it has given for businesses in various sectors, our organization, with its trained and expert staff and advanced technological equipment, has a test cell correlation of turboshaft / turboprop gas turbine engine within the scope of SAE ARP 4755 standard. It also provides testing services for