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Post by moxie2 on Jul 29, 2017 11:32:03 GMT -5
So, I have been searching around the net and can't seem to get a straight answer on this question. When installing a Hunter Original, is there a difference in CFM when choosing the 4 or 5 blade option? While I do prefer the look of the 4 blade configuration, I want to move the maximum amount of air possible. Thank you for all the input!
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Jared H.
Full Member
Trying to get bi
Posts: 309
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Post by Jared H. on Jul 29, 2017 15:40:55 GMT -5
Yes. Four blades has been proven to move more air than, per se, five or six blades.
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Post by Adam D. on Jul 29, 2017 16:42:03 GMT -5
I prefer the five blade look better on the 4/5 bladed originals... The 4 bladed version I like the look as equal.. I don't like the look with the 4 blade configuration on the 4/5 models due to the fact the blades mount closer to the switch housing, and doesn't give an equal balance look wise between the blades and switch housing.. That seems to be a minor issue though..
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Post by Noah C on Jul 29, 2017 19:02:18 GMT -5
So, I have been searching around the net and can't seem to get a straight answer on this question. When installing a Hunter Original, is there a difference in CFM when choosing the 4 or 5 blade option? While I do prefer the look of the 4 blade configuration, I want to move the maximum amount of air possible. Thank you for all the input! Exactly what Jared said. It depends on which looks better in your opinion, but the four blade configuration moves more air, because there's less drag on the motor produced by the weight of the blades (since there's less of them) and there's more space between the blades for air to move...working with the same blades with the same surface area, this is a combination for more airflow. |
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Post by Obi-Wan Canopy on Jul 30, 2017 23:12:07 GMT -5
Yes. Four blades has been proven to move more air than, per se, five or six blades. Proven? |
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Post by Noah C on Jul 31, 2017 1:24:24 GMT -5
Yes. Four blades has been proven to move more air than, per se, five or six blades. Proven? Given the same blades, irons, pitch, and other specifications as a whole, or in other words, given the same fan. |
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Post by Tais on Jul 31, 2017 3:31:56 GMT -5
if the motor operates at the same speed and the pitch of all the blades are the same, by default the 5 bladed version should blow more air, as there will be more blades to push the air
i like the 4 blade version more
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Post by Noah C on Jul 31, 2017 12:38:11 GMT -5
if the motor operates at the same speed and the pitch of all the blades are the same, by default the 5 bladed version should blow more air, as there will be more blades to push the air i like the 4 blade version more At that point, even at the same exact speed, the 4 blade version would still move more air, since each blade would be working with the same surface area and dimensions, and there would be more space between the blades for air to move since there's less of them. But, the factor of the same speed is realistically void because less blades=less aerodynamic drag as well as less weight attached to the motor. All of these in conjunction and you have a faster fan that moves a bit more air. This is part of the reason why Industrial/commercial fan designs usually use 3 blades. And I do have to agree with you on the look of the 4-blade configuration, I do prefer that. The 5-blade configuration looks best to me on the 1930s/Art Deco originals of some 25 years ago, though. |
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Post by Parkman on Jul 31, 2017 12:56:45 GMT -5
I guess I'm the odd one out, I actually prefer Originals with the 5th blade. I don't know why..
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Post by Cole D on Jul 31, 2017 19:23:06 GMT -5
I guess I'm the odd one out, I actually prefer Originals with the 5th blade. I don't know why.. Me too, at least on the ones meant to have 5 blades. The older ones look fine with 4 but with the newer ones I like 5 better for some reason. |
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Post by Jonathan A. on Aug 1, 2017 12:19:08 GMT -5
if the motor operates at the same speed and the pitch of all the blades are the same, by default the 5 bladed version should blow more air, as there will be more blades to push the air i like the 4 blade version more At that point, even at the same exact speed, the 4 blade version would still move more air, since each blade would be working with the same surface area and dimensions, and there would be more space between the blades for air to move since there's less of them. But, the factor of the same speed is realistically void because less blades=less aerodynamic drag as well as less weight attached to the motor. All of these in conjunction and you have a faster fan that moves a bit more air. This is part of the reason why Industrial/commercial fan designs usually use 3 blades. And I do have to agree with you on the look of the 4-blade configuration, I do prefer that. The 5-blade configuration looks best to me on the 1930s/Art Deco originals of some 25 years ago, though. It's also been proven that 4 blades can blow more air than just 2 blades. |
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Post by Noah C on Aug 2, 2017 8:31:14 GMT -5
At that point, even at the same exact speed, the 4 blade version would still move more air, since each blade would be working with the same surface area and dimensions, and there would be more space between the blades for air to move since there's less of them. But, the factor of the same speed is realistically void because less blades=less aerodynamic drag as well as less weight attached to the motor. All of these in conjunction and you have a faster fan that moves a bit more air. This is part of the reason why Industrial/commercial fan designs usually use 3 blades. And I do have to agree with you on the look of the 4-blade configuration, I do prefer that. The 5-blade configuration looks best to me on the 1930s/Art Deco originals of some 25 years ago, though. It's also been proven that 4 blades can blow more air than just 2 blades. 3 blades is usually most effective of all blade configuration, but this depends on the type of blade. It seems that 4 blades works best for paddle blade designs. |
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Post by Jordan U on Aug 2, 2017 12:08:47 GMT -5
For a fan that can take 4/5 blades,, the 4 blade configuration will move more air..
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Post by becausecanadia on Aug 3, 2017 1:44:51 GMT -5
4 blades on Originals look so much better than 5
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