Originally Posted by nleksan
I love the new 180mm AP182's, they actually are the absolute best 180mm+ fans you can buy, and fix all the issues that the previous APs have.
Static pressure is also a dynamic value, and the more static pressure, the more airflow through a restricted area. You can basically see it as a measure of how a fan will perform in any situation aside from totally free air.
I am on my phone, but you can Google and find plenty of fan roundups showing the poor performance of the 120/140 APs.
I don't doubt that they perform poorly... I just wanted some citing... google is good enough though.
I don't want to get into a definition of words battle because I screw them up all the time BUT... When you say Static pressure is also a dynamic value (by definition it can't be) I think you mean that the pressure drops in a near linear way in regards to the RPM, CFM, and Restriction.
I have a hard time believing this and I am not trying to upset you but if you could actually give a link for that one when you have time please do. I simply want to learn about this it is not that I am directly challenging you. It is just that I once thought what you think now and I was absolutely schooled by someone who knew a lot more and had a science background. After his very detailed explanation and some fact checking on my part to make sure he wasn't full of it I came to the following conclusion: Static pressure can only give you insight into a fans performance under the most restrictive situations and that it can't really be compared from one company to another since testing standards have not been made which could result in wild variations.
Again though no surprise that the APs are not good for radiators but I would have thought it wouldn't necessarily have anything to do with it being designed to direct air but more that it wasn't designed to force it as much as some of the other brands. Also my experience with the APs is limited specifically to the 180s. I thought the AP fans ability to direct air had more to do with the thing it had in the front than to do with the blade profiles it sounds like I may be wrong... because those things up front shouldn't affect it's ability to have a high static pressure at least by much.Edited by givmedew - 6/25/13 at 6:53pm