I was making a car in the beta and when i got to the end of the exuast its looks real boring so i added a inlet and looks alot better since it doesent end with no hole. (I have uploaded a sports car on my profile that uses this, look at the last screenshot it shows the exuast.)
The second cool thing i found is if you take an inlet and make the fron size 0, 0
Its will make a cone with a red tip (or any color you like) and whats nice about this is you can adjust the trim for alot of red or little red (im going to upload an example of this and mabye put a link in the comments, also i forgot how to link can some one tell me? xD) but i just wanted to share these so there can be awesome builds everywhere.
I used one on the end of a rocket, hid the engine inside of it.
Also after reading this, I used your exhaust tip idea on the plane I was about to upload, brilliant idea, it looks 100% better than before. :)
Also tank cannons, they are good for that
Nice ideas! Btw. To link things you put [what you want the link to say](website address {www.simpleplanes.com}) ->Link