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.

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.