I am not sure if this is my first plane but it is the earilest screenshot of my simpleplanes product.
This plane is based on my earilest screenshot of simpleplanes in my discord group with the description "first ever working plane that reaches supersonic".
Since this game is extremely newbie unfriendly, which is horrible, I had terrible experiences in my early days in this game and quit multiple times. It's not my fault, this game is just bad that's all.
For example when I just wanted to create a normal plane, tha plane would fu@king flip for no reason at all, and at that time I don't know how to use fine turner or overload so all my creation that I spent so much time on nerver works, everytime I go for a first test flight it simply fu@ks up, giving me the feeling that this game defines everything on their physics and will never respect your efforts.
Then I found out the engine's weight is the caused of this problem, I have to make the mass in the middle. With no skill or experiences I only thought I have to put the engine in the middle of the plane, that finally let one of my planes fly but it looks super weird. This plane was built in this era, it's not too weird, and flies properly.
Later I quit again because my plane don't stand a chance agaisnt the wasp, it takes too much time to lock.

A few months later I came back again ,I somehow figured out how to use fine turner and overload and started using it. One of the results are the prototype 1 and 2, they are both uploaded in my account. As you can see it's engines are weirdly expended because I'm still trying to make it not flip.

If I wrote all my history here it would be too long for a plane description, maybe I will write the rest of it someday, today I can build planes properly but rebuilding my first recorded plane really reminds me of my early days. It's been more that one year now and I only recently figured out I can actually make the engine mass 0 to make the plane not flip bruh