Question

Отгадайте существительное.
My first is “going very fast”.
My second is a preposition meaning “around”.
On the whole I mean a small car or a plane.

Answer 1

Нашла! 
Go-around - a path taken by a plane after an unsuccessful attempt at landing, in order to get into a suitable position to try to land again
Путь, который берет самолет после неудачной попытки приземления...ит.д.