Appendix D: "A" Missile System - Triax 2015 User Manual

APPENDIX D
Triax 2015 "A" MISSILE SYSTEM
D.1 General
The Triax 2015 may be configured for testing of playing field surfaces to ASTM
specifications F355 and F1936 using the "A" missile system. The A missile is a stainless
steel cylinder, 5.0" in diameter with weight of 20 pounds.
NOTE: The "A" missile system may also be configured with guide tube offering a 36
inch or 39.4 inch (1 meter) drop height for testing wrestling mats (ASTM F1081) and
trampoline components (ASTM F381, F2970,) respectively.
D.2 Guide Tube
The guide tube is designed to automatically set the 24 inch drop height as required by
ASTM F1936 for testing of playing fields. Before use the aluminum base plate must be
attached to the bottom of the guide tube. Place the guide tube on a firm level surface with
the plate support ring facing up. Place the two halves of the base plate on the support ring
aligning the holes in the base plate with the four steel pins. The base plate halves might
need to be rotated for proper alignment. The base plates should be installed so that the
recesses for the mounting screws are facing upward allowing the screws to be flush when
installed.
Photo D.1 – Attaching base plate
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