One fear users have with freeware is performance. Some freeware (like the Zibo 737) is actually heavier on your CPU than payware because it runs so many custom systems.
If you install only one addon from this list, make it . x plane 11 addons freeware
These are payware‑level free aircraft: One fear users have with freeware is performance
: A powerful program that allows you to download and import satellite imagery (orthophotos) into X-Plane for realistic terrain. giving him a realistic ground crew
: He added , giving him a realistic ground crew, and Cloud Art , which turned the default "cotton ball" clouds into towering, ominous cumulonimbus.