ground man

noun2

1. •
   A man who works at an airfield as a member of the groundcrew.

   • Red carted their overnight bags to the plane, and the ground man broke off his conversation with the pilot to stuff them into the nose compartment. — 2010
2. •
   A man who works from the ground alongside others who climb or work on a lift, ladder, hoist, etc.

   • The above list is by no means exhaustive but outlines the ways in which a ground man may affect the performance of a climber. — 1986