between the runway and the taxiway is between 1 and
2 inches. Place a 90-degree connector in position, as
shown in figure 11-26. Using a sledge hammer and a
wooden block, drive it into position. The most
efficient method is to drive the 90-degree connectors
from either edge toward the center of the taxiway.
Place a mark at or near the midpoint of the 12-foot
length of the mat. Drive the first connector to this
mark. The positions of the remaining 90-degree
connectors are then automatically established. Care
must be maintained while driving the connectors not
to allow debris to be scooped up by the forward edges
of the connectors.
INSTALLATION OF TIE-DOWNS.
The-downs are provided for aircraft anchorage. (See
fig. 11-27.) They are shipped in a package or
container, as shown in figure 11-28. An individual
container contains 120 tie-downs, plus the screws,
drilling, and tapping equipment necessary to install
When tie-downs are to be installed, start by
drilling and tapping the AM-2 matting on the
prongs-down connector. Drill two holes for each
tie-down ring retainer, using tools from the tie-down
container. The procedure for drilling is as follows:
1. Secure the sleeve, 412131-1, to the 5/16-inch
drill with the setscrew, using the drill fixture, 509044-1,
as shown in operation 1, figure 11-29. Orient the sleeve
to ensure seating of the setscrew on the body diameter
of the drill.
2. Position the drill fixture, as shown in operation
2 (fig. 11-29), and drill one hole, as shown. Proper depth
is obtained when the sleeve contacts the bushing.
3. Insert the pilot, 4121301, through the drill
bushing into the drilled hole, and drill the second hole,
as shown in operation 3 (fig. 11-29).
Figure 11-28.Tie-down container.
4. Tap two holes 3/8 inch, 16 threads per inch,
unified national coarse class 3B fit. Finish with the
bottom tap to obtain 9/16-inch minimum full-thread
5. Store the sleeve and the pilot in the holes
provided and secure with setscrews.
After the drilling is completed, secure the ring
retainer with two socket head screws.
PARKING AND STORAGE AREAS. The
parking and storage areas should be installed next.
Mats and locking bars are installed in the same manner
as the runway and taxi ways, except that the staggered
joint pattern is not mandatory. This means that the area
can be built up in any random pattern and that all
leftover half-length or full-length mats can be used.
The 90-degree connectors should be installed between
these parking and storage areas and taxiways
according to the procedure outlined earlier. Install
tie-downs on the matting in these areas, as shown in
BLAST DEFLECTOR INSTALLATION. To
shield the ground area around taxiways and parking
areas from the blast effects from aircraft, install blast
deflectors as required. Assemble blast deflector
adapters to the boundaries of matting that will be