Subsonic, Transonic Wind Tunnel

Independently Owned & Operated Subsonic, Transonic Wind Tunnel

Calspan’s Subsonic, Transonic Wind Tunnel, is the only independently owned and operated wind tunnel in the United States. Our staff is known for its flexiblity and responsiveness to our customer’s needs. Customers appreciate this approach, as it enables them in real time, to refine test programs. Wind Tunnel test programs that support the various phases of an aircraft’s development. A benefit that results in the efficient execution of test programs.  This efficiency promotes less time required to down select and perform design optimization. Calspan also offers to its customers, the management of model design and fabrication (prior to program commencement).

Our Subsonic, Transonic Wind Tunnel facility is fully compliant with the JAFAN 6/9 security specification and is approved to support testing at the Secret-SAP level (when required). Customer models, data, and related program information are all handled in a strictly proprietary manner.  This protects, the sensitive nature of the work we conduct on behalf of our customers.  Additionally, all Calspan Subsonic, Transonic Wind Tunnel staff (including support staff) carry U.S. government clearances, at the Secret level or above. Test and Calibration Areas, Model Buildup Rooms, Control Room, Data Reduction Room, and Customer Processing Rooms can all be secured to allow for the processing of classified information.

Our Subsonic, Transonic Wind Tunnel Services:

The Markets We Serve & Our Data Processing

Calspan has developed specialized tests, instrumentation, and data acquisition systems to evaluate the performance of Military Aircraft + Weapons, Space Access Vehicles, Ram Air Turbines and Passenger + Commercial Aircraft.

Throughout these test programs, our wind tunnel experts provide customers with high-quality data that is specifically formatted to each customer’s requirements.

Take a virtual tour of our facility

Calspan’s Subsonic, Transonic Wind Tunnel is a continuous flow, variable density, closed-circuit facility with an 8 foot x 8 foot test section. 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. Other details about our test facilities include:

• Maximum Mach Number of 1.30
• Stagnation Pressures of 0.25 to 3.25 Atmospheres
• Reynolds Numbers up to 4.5 x 10^6 per foot (Conventional)
• Reynolds Numbers up to 10.5 x 10^6 per foot (Ejectors)

Meet The Leaders Of The Subsonic / Transonic Wind Tunnel Team


Calspan uses innovation, creative engineering, and insightful expertise to help guide projects to success based on a simple premise: following industry best practices, partnering and collaborating with customers, and using a process of continuous improvement. To learn more about some of our Subsonic / Transonic Wind Tunnel team members, select any of the names below.