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Rigging - Reference Notes

improper rigging can be dangerous, and introduces serious risk to cast, crew, audience, everyone! know your Working Load Limits (WLL), know your Min. Breaking Weights (MBW), and know your safety margins. When in doubt, defer to an expert. these notes are NOT a substitute for proper training or experience

this page needs a little more organization

Weights

  • Schedule 40 Steel 1.5" pipe weighs 2.4lbs per foot (on average)
  • Swivel Cheeseboro (sched 40):
  • Rigid 90º Cheeseboro (sched 40):
  • ETC C-Clamp:
  • MWB Mega Claw: 2lbs
  • Mega Clamp: 0.85lbs
  • MLBSE Mega Coupler w/ Eye Nut: 1.3lbs
  • MLSB Mega Coupler Swivel: 2.2lbs
  • ML9B Mega Coupler 90º Rigid: 2.2lbs
  • MLB Mega Coupler: 1.14lbs
  • MSCB Mega Slim Coupler: 0.65lbs
  • SLCB Mega Slim Claw:

Working Load Limits (WLL)

  • Mega Claw: 1,100lbs
  • Mega Clamp: 600lbs
  • MLBSE Mega Coupler w/ Eye Nut: 1,100lbs
  • MLSB Mega Coupler Swivel: 1,100lbs
  • ML9B Mega Coupler 90º Rigid: 1,100lbs
  • MLB Mega Coupler (1/2" and 3/8"): 1,100lbs
  • MLB Mega Coupler (1/4"): 450lbs
  • MSCB Mega Slim Coupler: 500lbs
  • SLCB Mega Slim Claw: 600lbs

Clamps & Claws Dimensions

measurements are from the center of the pipe to the flat surface of the clamp that touched the yoke

  • Mega-Claw: 3"
  • Mega-Clamp: TBD
  • Mega-Coupler w/ Eye Nut:
  • ETC C-clamp: 5"

Speakers in Yokes

  • Meyer MUB-X40 (masque custom): 11.5" (?? need to double check this)
  • Meyer MUB-UPA (masque custom): TBD

Trapeze

  • (Add notes here about building trapeze!)

Air Craft Cable

  • 1/16" 7x7
    • Working Load Limit 5:1 (WLL): 96lbs
    • Min. Breaking Load (MBL): 480lbs
  • 1/8" 7x19
    • Working Load Limit 5:1 (WLL): 400lbs
    • Min. Breaking Load (MBL): 2000lbs
  • 3/16" 7x19
    • Working Load Limit 5:1 (WLL): 840lbs
    • Min. Breaking Load (MBL): 4200lbs
  • 1/4" 7x19
    • Working Load Limit 5:1 (WLL): 1400lbs
    • Min. Breaking Load (MBL): 7000lbs

Verlocks

  • verlock junior 1/16"
    • WLL: 60lbs
  • verlock senior 1/8"
    • WLL: 250lbs
  • verlock jumbo 3/16"
    • WLL: 425lbs
  • verlock w/ eye nut
    • WLLL 1000lbs

6 Ball Gliders

  • 1/16" 3 ball glider
    • WLL: 60lbs
  • 1/8" 6 ball glider
    • WLL: 250lbs
  • 3/16" 6 ball glider
    • WLL: 500lbs
  • 1/4" 6 ball glider
    • WLL: 1000lbs

Yoke Measurements

measurements are from the top of the yoke (where the c-clamp or mega claw is affixed) to the center of rotation. some yokes have multiple bolt holes, and therefore multiple measurements

Masque Custom Yokes

  • UPQ vertical: 20.5"
  • UPJ horizontal: 7.25"
  • UPJ vertical: TBD
  • UPA horizontal: TBD
  • UPA vertical: 16.25"
  • UP4-XP: 4 15/16", 4 15/16"
  • MM4: 2.75", 3.5"
  • JF60 horizontal: 4", 5", 6"
  • Anchor AN-1000x: 3 5/8", 4 5/8", 5 5/8"

Meyer

  • Meyer MYA-UPA: 15.5"

EAW

there are several EAW yoke manufacturers. I didn't know which was which at the time of measuring, so I used "variants" to denote different yokes

  • JF80 yoke, variant A: 10.25"
  • JF80 yoke, variant B: 6.75", 5.75", 4.75"

Sources