Read a lot of the posts here in the "Beginners" forum.
You can also do "Searches" for specific stuff, like "trainers", "engines", "First plane",....
Go to the "FAQ's" page too. There's So-o-o much stuff here on RCU, you just won't believe it! You could read for weeks and not run out of great info.
If you come up with a specific question, like in your other post, just ask!

Dennis-