Hook cable retraction systems provide a level of sophistication where the hook cable is supported just above the runway surface and also allows the cable and mechanism to be lowered below runway level to provide an obstruction-free surface.

• BAK-14 System
  The BAK-14 is a mechanically raised, pneumatically retracted series of 14 to 20 independent support box mechanisms.

• Type H Retractable Hook Cable System
  The Type H is a simple electro-hydraulically actuated series of retraction modules that are interconnected by an actuation cable.