A newbie here all. I’m busy reading lots of posts and threads to move through the steepest part of my newbie learning curve as fast as I can. I will have many questions over time (I’ve already posted a few). For this post, I just want to understand two abbreviations I keep seeing. The fist is “AC” which I understand to refer to the drone. If I’m right, I‘m stumped on what AC means if spelled out. The second is “YT,” which has come up in connection with tutorials of various kinds. I’m clueless on that one. I’m sure most of you know what those mean, and I’d appreciate the enlightenment. Thanks.