Installing aircraft is really easy, in X-Plane 11, as long as you understand the steps. Basically, you do the following:
1) Download and unzip the aircraft files
2) Copy the entire unzipped aircraft folder to your X-Plane 11/aircraft folder
And you're done. But there may be other things you'll need to setup or tweak to get the aircraft to work properly. Follow along with me will I install aircraft and tweak settings for the aircraft.
INDEX -
00:00 Intro
02:38 Download aircraft
04:00 Checking for new aircraft installed in X-Plane 11
04:25 Special X-Plane Folder "Extra Aircraft"
5:45 Reloading...
07:00 Testing the aircraft's cockpit controls
11:40 Installing a different aircraft in a custom folder
14:10 Extracting directly to the aircraft folder
14:40 Using an installer to install aircraft (AFL C172)
19:50 Activation Process (Beaver)
20:20 Back to the installer (AFL C172)
21:45 Checking flight controls (Beaver)
27:45 Configuring BETA (STMA PC-12) Bravo Throttle
32:20 Testing Beta with correct aircraft (STMA PC-12 2nd version aircraft)
35:20 Configure Reverse Thrust (Carenado PC-12)