Attachment A - Polypanel Salient Characteristic.pdf

UHMW Polyethylene Physical Requirements

3-14.5.2 Anchor Stud Hole Locations and Dimensions.

• Each full-sized panel will have six anchor stud holes centered 102 millimeters

(4 inches) from the edges of the panel corners and at mid-length.

• Each partial-sized panel will have four anchor stud holes centered 102 millimeters (4 inches) from the edges of the panel at each corner.

• The anchor stud hole will be 25.4 millimeters (1 inch) for the through hole and

51 millimeters (2 inches) for the countersink hole.

• The countersink hole will be 22 millimeters (0.875 inch) deep with square shoulders for a flat washer to lie against.

• Figure 3-9 shows dimensions and drilling details.

• Tolerances on dimensions for locations and diameters of anchor holes will be

±1.6 millimeters (±0.0625 inch).

3-14.5.3 Locating Cable Tiedown Anchor Holes.

• The agency ordering panels must specify the total number of panels required to be drilled to accommodate cable tiedown anchors (four or eight per inlay).

• The cable tiedown anchor hole must be 102 millimeters (4 inches) in diameter and drilled completely through the panel.

• Cable tiedown anchor holes will be located in the center of the panel.

• The location of the cable tiedown anchor hole is shown in Figure 3-8.

• Cable tiedowns must not be located closer than 305 millimeters (12 inches) from existing pavement joints.

• Install cable tiedown anchors for operational systems (systems located between the runway thresholds) to limit cable bounce and potential aircraft damage during aircraft rollover.

• Install eight anchors for all operational systems regardless of primary aircraft supported on the airfield.

• Program systems with four anchor points to be upgraded to eight anchor points (ref: paragraph 3-8).

NOTE: Actual panel dimensions listed on page 4 and 5

• Tie-down anchors should only be placed in full length panels with six anchors.

• Partial panels should never be used to accommodate a cable tie-down anchor.

They should only be drilled at each corner.

Countersink hole must be 2 inches in width to accommodate washers