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Smithsonian: National Air and Space Museum

Steven F. Udvar-Hazy Center

Chantilly, VA


One of the fans at the Smithsonian’s Steven F. Udvar-Hazy Center failed catastrophically. To replace the failed fan, the client would have had to remove the side of the AHU and bring in a crane to lift the new fans into the unit.

Equipment Being Replaced:

Two large belt-driven plenum fans. 

New Equipment

Array Type: IntelliCUBE XL

Tech Specs: 86,892 CFM, 6.31 TSP


Mainstream designed a modular fan array with components small enough to go through the existing doorway of the air handler. By utilizing Mainstream’s IntelliCUBE XL fan array, there was no need to use a crane to install the new fans. The old fans were removed and the new fans were installed over a weekend. An estimated $35,000 a year in energy savings will be realized because of the energy efficiency of the PMEC motors.

Mainstream provided this government building with:

Lower Costs

Better Efficiency

Simplified Maintenance