TEXT: ARMOR OR COVER
  MM PER AV1
  AV CONSTANT
  TYPICAL SAMPLE
  Aluminum Plate
  20
  0.3
  20mm (AV1)
  Aluminum, Hardened
  16
  0.3
  16mm (AV1)
  Armor Plate, Aluminum
  5
  0.25
  5mm (AV1)
  Armor Plate, RHA
  5
  0.2
  5mm (AV1)
  Brick
  35
  0.3
  100mm (AV3)
  Cinder Block
  33
  0.28
  300mm (AV9)
  Concrete
  35
  0.3
  100mm (AV3)
  Fiberglass
  17
  0.3
  17mm (AV1)
  High-Strength Steel
  3
  0.16
  3mm (AV1)
  Iron Plate
  8
  0.13
  8mm (AV1)
  Loose Dirt
  250
  0.004
  250mm (AV1)
  Packed Earth
  50
  0.2
  100mm (AV2)
  Reinforced Concrete
  25
  0.4
  250mm (AV10)
  Sandbag
  50
  0.2
  250mm (AV5)
  Sheet Steel
  6
  0.16
  6mm (AV1)
  Stone
  50
  0.2
  300mm (AV6)
  Titanium Plate
  4
  0.2
  4mm (AV1)
  Tree Trunk
  50
  0.2
  600mm (AV12)
  Tungsten Plate
  2
  0.2
  2mm (AV1)
  Wood
  50
  0.2
  200mm (AV4)
  
SOURCE: textdata/thevault/Twilight 2000/Unofficial/pmulcahy.com Archives/Twilight 2000 - Armor Values.pdf