text: Chapter 5
  UH-1H
  5-50. When transporting external loads with a UH-1H, use a nylon donut or web ring to attach the load
  to the aircraft. The cargo hook on the UH-1H is stationary; using an apex with a heavy load would bind the
  hook and shear it off. The cargo hook tensile strengths for the UH-1H is 4,000 pounds; for the UH-1N, it is
  5,000 pounds.
  UH-60 BLACKHAWK
  5-51. When using the 10,000-pound apex to secure an external load to the UH-60, you must also use the
  aluminum spacer. The spacer is not required, or recommended, when using a 25,000-pound apex.
  However, if you use the 25,000-pound apex with spacer, the cargo hook must be manually operated by an
  aircraft crewmember or a member of the hook-up team. Never use a donut or web ring on a UH-60. The
  web ring will bind on the hook and prevent the crew from releasing the load in an emergency. The tensile
  strength of the UH-60 cargo hook system is, for the UH-60A, 8,000 pounds and for the UH-60L,
  9,000 pounds.
  STANDARD WEIGHTS
  5-52. When using a UH-60 Blackhawk for airlift, coordinate closely with the aviation unit for the ACL.
  For the standard weights of petroleum, oils, and lubricants (POL), for external loads only, see Table 5-4.
  Standard vehicle and artillery weights follow in Table 5-5 and Table 5-6.
  Fuel 55-Gallon Drum 500-Gallon Blivet
  Motor gasoline (MOGAS) 404 pounds 3,400 pounds
  Gasoline (JP4/JP8) 410 pounds 3,500 pounds
  Diesel fuel 457 pounds 3,800 pounds
  Lube oil (30 weight) 479 pounds 4,000 pounds
  Table 5-4. POL for external loads only.