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NASA NTRS · 20240008170

Tiltrotor Test Rig Wind-Tunnel Test Data Catalog

C W Acree, Jr
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Abstract

The Tiltrotor Test Rig (TTR) is a large-scale proprotor test system for the National Full-Scale Aerodynamics Complex (NFAC). The first wind-tunnel entry was completed in November 2018 with a modern, 26-ft diameter proprotor. The rotor tested was the Bell Model 699, an AW609 rotor modified specifically for wind-tunnel testing. The primary purpose was to complete the development of the TTR, including systems integration with the NFAC. Testing included axial flow up to 273 knots, conversion mode from 30 to 100 deg nacelle angle, and hover/vertical climb conditions. Additional testing included aerodynamic tares, motor tests, thermal tests, modal vibration tests, and other checkout activities. This report lists the test conditions achieved and the types of data acquired and saved in the database.

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C W Acree, Jr. 2024-12-01. Tiltrotor Test Rig Wind-Tunnel Test Data Catalog. https://ntrs.nasa.gov/citations/20240008170

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