![IJTPP | Free Full-Text | Axial Impeller-Only Fans with Optimal Hub-to-Tip Ratio and Blades Adapted for Minimum Exit Loss IJTPP | Free Full-Text | Axial Impeller-Only Fans with Optimal Hub-to-Tip Ratio and Blades Adapted for Minimum Exit Loss](https://www.mdpi.com/ijtpp/ijtpp-08-00007/article_deploy/html/images/ijtpp-08-00007-g003.png)
IJTPP | Free Full-Text | Axial Impeller-Only Fans with Optimal Hub-to-Tip Ratio and Blades Adapted for Minimum Exit Loss
![Model propeller geometry (left). Details of the blade-hub attachment... | Download Scientific Diagram Model propeller geometry (left). Details of the blade-hub attachment... | Download Scientific Diagram](https://www.researchgate.net/publication/317074613/figure/fig6/AS:639596438245376@1529503082095/Model-propeller-geometry-left-Details-of-the-blade-hub-attachment-for-the-controllable.png)
Model propeller geometry (left). Details of the blade-hub attachment... | Download Scientific Diagram
![Piranha Replacement Blades - Set of 4 - Fits "A" size 4-Blade Hub - 14D x 18P - RH Rotation - "Pointed Ear" - Ace Propeller Piranha Replacement Blades - Set of 4 - Fits "A" size 4-Blade Hub - 14D x 18P - RH Rotation - "Pointed Ear" - Ace Propeller](https://acepropeller.com/wp-content/uploads/Piranha_4-blade-Pro_Kit-pointed-blade-1-min-600x600.jpg)
Piranha Replacement Blades - Set of 4 - Fits "A" size 4-Blade Hub - 14D x 18P - RH Rotation - "Pointed Ear" - Ace Propeller
![Sections from hub to tip of the blade used for three-dimensional design... | Download Scientific Diagram Sections from hub to tip of the blade used for three-dimensional design... | Download Scientific Diagram](https://www.researchgate.net/publication/282952765/figure/fig4/AS:392034373390336@1470479686019/Sections-from-hub-to-tip-of-the-blade-used-for-three-dimensional-design-of-blade-profile.png)