The small scale transonic tunnel is a 1:12 scale version of the Transonic Wind Tunnel (TWT). This facility is used for low cost wind tunnel testing on small models in the early development stages of a new program. It is also used for the calibration of flow angularity meters and other flow survey probes to be used in the TWT.

Facility Capabilities

• Mach number range from 0.3 to 1.2
• Incidence range up to 20˚
• Small strain gauge sting balances
• Wall mounted half model balance
• Pressure measurements using ESP modules
• Provision for Schlieren windows in the test section side walls

Technical Information

• The test section is 22.86 cm (9 in) wide by 20.32 cm (8 in) high with perforated walls of 20% open area.
• The tunnel is powered by an ejector driven from the 10bar (145psi) high pressure air reservoir.
• Supersonic speeds are attained using the flexible nozzle