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• High Quality Data • High productivity • Low cost per data point • Immediately usable “final" data • Quick and flexible scheduling • Detailed test planning • Strict customer confidentiality • Dedicated staff in highly-skilled disciplines • Established Quality Management System The Calspan Corporation (Calspan) Transonic Wind Tunnel (TWT) is the largest test facility of its kind in the USA, providing quick response, impartial, customer oriented services since 1947. Con- tinuously serving the U.S. and International aerospace community for more than 57 years, the TWT has accumulated over 140,000 hours of testing. Our demonstrated expertise in Performance, Stability & Control (S&C), Weapons Integration, Inlet, Jet-effects, Acoustics, Loads, and Semi-span test capabilities has enabled Calspan to make significant contributions in assessing the aerodynamic performance and S&C characteristics of aircraft and weapon systems. The TWT is a continuous flow, variable density, closed circuit, facility with an 8 x 8 foot [2.44 x 2.44 meter] test section. With a maximum Mach number of 1.35, the tunnel may be operated at stagnation pressures ranging from 0.25 to 3.25 atmospheres. Test conditions are set via independent control of Mach number and one other pressure-dependent variable for constant Reynolds number, static pressure, dynamic pressure, or total pressure operations. Shock attenuation and de-blocking to achieve transonic speeds in the TWT is accomplished through uniformly perforated test section boundaries, a concept originated and developed at Calspan. Maximum Flexibility Four cart systems allow for Sting, Captive Trajectory Simulation (CTS), Reflection Plane, and Island Fairing model mounting capa- bilities.Test and data acquisition procedures are integrally keyed to either pause or continuous sweep operating scenarios in the pitch, yaw, or roll planes.All data reduction computers are contained within the TWT control room, allowing the user quick access to data results and provides excellent control over computing program or presentation changes as required. TRANSONIC WIND TUNNEL General Capabilities ▲ Inlet Optimization Bay Acoustics Stability & Control Weapons Integration Performance Validation Flutter Component Loads Jet Effects Total Vehicle Development
