Quite often people use the word "badly" only in the meaning "плохо".
It also has the meanings "сильно", "серьезно", "тяжело" which are more commonly used, even in Aviation English.
Let's see.
to be badly damaged- быть сильно поврежденным
The main gear is badly damaged after the landing, we can't move on our own.
To be badly wounded- быть тяжело раненным
All people were alive and kicking and only two flight attendants were badly wounded.
To want something badly-хотеть чего-то очень сильно
I dream about working for Austrian Airlines.I want it badly.
need badly-остро нуждаться в чем-то
Our airline needs new fleet badly.
