Comments on: Having more than 2 blades on this is less efficient but also quieter

Comments on: Having more than 2 blades on this is less efficient but also quieter–some have as many as 10 https://jeopardyanswers.org/having-more-than-2-blades-on-this-is-less-efficient-but-also-quieter-some-have-as-many-as-10/ Tue, 11 May 2021 22:33:41 +0000 hourly 1 https://wordpress.org/?v=6.5.2