National Transonic Facility Shut-Down Reinstallation.
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The NTF is a high-pressure, cryogenic, closed-circuit wind tunnel that uses supercold nitrogen gas at high pressure to duplicate true flight aerodynamics. The NTF can accommodate models as small as one-fiftieth the size of an actual aircraft. Unlike conventional wind tunnels, this facility can adjust airflow to match model size.
Mach Number: 0 – 175 mph
Reynolds Number: 0.1 to 1.2
Pressure: 4 x 106 to 145 x 106 per foot
Temperature: -250 to 150°F
Test Gas: Nitrogen and ambient atmosphere
Test Section Size: 8.2 x 8.2 feet
Area: 66.8 feet
Drive Power: 135,000 horsepower
National Transonic Facility Fact Sheet
