IAS is a long way from Auto-Throttle or Auto-Land. It's just something that is nice to have when your plane is pointed straight at you in variable winds to give you a little more confidence you are not going to drop into a hole before the threshold.

Plus this thing is very easy to install. The tube diameter is not that critical. On my Flash I'm using an Eagle Tree Pitot Tube from a prior install. In my F-5 it's the right gun. I'll take some pix later this week.<br type="_moz" />