I have never ever seen anyone else post a tutorial on how to work on this website, and how to start. Asides from one of them listed.

I have been around for 2.6 years now, meaning, I have some knowledge to give. Now, this isn't pertaining on how to build, it's why and what else you can do. If you're very new to Simpleplanes, don't do what I did and be afraid to interact with members of this community. Now, I gave someone this advice:
For your first few builds, worry about making it functional, then, worry about their looks. You can choose what to upload, and when.

What does it mean?

The whole idea to this, is simple, your first few builds should function how you want them to. No need to worry about looks, soon after, you should start testing as well. When you have an idea of the how this game works, you should then start making them look nicer. There are many tutorials right here in the forum's.

Remember, you should talk to people.
Without speaking to people, you're limiting yourself, you could learn valuable lessons from someone, the person doesn't have to be super high up in the ranks, there's always something to be learned.

Now, onto how to do some of the Forum Formatting.
Remember, any space is to allow you to see the formatting.
A double asterisk: ** , around your text makes it bold.
A single tag, before a sentence, #makes it big.
A single asterisk, around your text, makes it italicized.
To get an image in your forum, ! [] (), remember, you to type .PNG, or .jpg at the end of link, (in the parentheses)
How to hyperlink? [You put text like this] (With a link)

Other Advice from things I have learnt:
If you don't like a user, just, keep away from them.
This website is different from a lot of other game Websites.
Drama will happen, if you find yourself in it, there's no need to do anything, other than apologize.

Mods (Modifications) are only available on PC.

Do not tag a Moderator without need, but do tag them if you require one.

Useful Links:
Rules
The Point System
Bogdan's Useful Post
Armyguy1534's useful Post
Believe me, it won't seem useful, but, that's what can happen.

That'll be it for now, hopefully you know a few more things.