# What is the purpose of the small wheel at the end of the F-14’s launch bar?

At the end of the launch bar (catapult strop link) on the F-14 airplane, there is a small wheel. Does anyone know what this is used for?

• Can you highlight or circle the part in the picture? Jan 21 '18 at 3:24

• @CarloFelicione - when I wrote the launch bar is ahead of it, I meant its location before retraction, to emphasize how it enters the bay, I'll clarify it.