text: External Loads
  DANGER
  AT NO TIME WILL THE SIGNALMAN OR ANY OTHER MEMBER
  OF THE SLINGLOAD TEAM ALLOW A SUSPENDED LOAD TO
  PASS OVER HIS HEAD.
  Hookup Men
  5-89. Duties of the hookup men include the following:
  y One of you handles the static discharge wand and the cargo hook. The other controls the apex
  fitting of the slingload. Together, you must complete the hookup fast to reduce helicopter hover
  time and to reduce your exposure time under the helicopter.
  y Position yourselves by the load so that, while the helicopter hovers over the load, you can
  quickly complete the hookup (Figure 5-18). You must also make sure the signalman can
  continually observe the operation.
  y When the helicopter moves into the correct position for hookup, whichever one of you is the
  static wand man must ground the aircraft. Touch the static wand to the cargo hook
  (Figure 5-19, page 5-28) and keep it there to maintain a continuous ground.
  Figure 5-18. Position of hookup team.