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Can a fan with shorter blades work as well as a normal blade-sized fan? - Quora
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Airfoil Fan Blades
Axial Airfoil Impellers - Continental Fan Manufacturing Inc.
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Airfoil as used in an axial flow fan blade [1]. | Download Scientific Diagram
Centrifugal Fans - Aerotech Fans
Applied Sciences | Free Full-Text | Optimization of Multi-Blade Centrifugal Fan Blade Design for Ventilation and Air-Conditioning System Based on Disturbance CST Function