Axial fans have been designed from experience and techniques borrowed from the Airbus design, computer simulation, and customer input. Axial fans are available in both direct drive and belt drive.

The axial flow fan involves the motor rotating a hub with blades mounted to or cast into it, which moves air parallel to the axis of rotation. This type of blower is primarily used in ventilation systems.

Navy Axial impellers are cast of aluminum that are not adjustable. These undergo stringent controls and inspections. The impeller is manually adjustable through the full range of pitch angles. All impeller components are X-rayed using real time radiography, and examined to ASTM E-155, prior to machining to assure casting integrity and quality. All impellers are precision balanced as a fan assembly to minimize vibration levels and assure smooth operation.

Axial fan casings are made of heavy gauge steel with flanges and welded seams. The casing is manufactured to a stringent tolerance for roundness, which assures proper blade tip clearance for optimal performance.