Section 587.6 - General description(a) The moving deformable barrier consists of component parts and component assemblies which are described in drawings and specifications that are set forth in this §587.6 of this chapter (incorporated by reference; see §587.5).(b) The moving deformable barrier specifications are provided in the drawings shown in DSL-1278 through DSL-1287, except DSL-1282, and the drawing shown in DSL-1290 (DSL-1278 through DSL-1287, except for DSL-1282, and DSL-1290 are incorporated by reference; see §587.5).(1) The specifications for the final assembly of the moving deformable barrier are provided in the drawings shown in DSL-1278, dated June 2002.(2) The specifications for the frame assembly of the moving deformable barrier are provided in the drawings shown in DSL-1281, dated August 20, 1980.(3) The specifications for the face of the moving deformable barrier are provided in the drawings shown in DSL-1285, dated October 1991, and DSL-1286, dated August 20, 1980.(4) The specifications for the ballast installation and details concerning the ballast plate are provided in drawings shown in DSL-1279 and DSL-1280, both dated August 20, 1980.(5) The specifications for the hub assembly and details concerning the brake are provided in drawings shown in DSL-1283, dated October 1991.(6) The specifications for the rear guide assembly are provided in drawings shown in DSL-1284, dated August 20, 1980.(7) The specifications for the research axle assembly are provided in drawings shown in DSL-1287, dated October 1991.(8) The specifications for the compliance axle assembly are provided in drawings shown in DSL-1290, dated October 1991.(c) In configuration 2 (with two cameras and camera mounts, a light trap vane, and ballast reduced), the moving deformable barrier (crabbable axle), including the impact surface, supporting structure, and carriage, weighs 3,015 pounds, has a track width of 74 inches, and has a wheelbase of 102 inches.(d) In configuration 2, the moving deformable barrier has the following center of gravity: X=44.2 inches rear of front axle
Y=0.3 inches left of longitudinal center line
Z=19.7 inches from ground.
(e) The moving deformable barrier has the following moment of inertia: Pitch=1669 ft-lb-sec2
Roll=375 ft-lb-sec2
Yaw=1897 ft-lb-sec2
55 FR 45779, 10/30/1990; 56 FR 47011, 9/17/1991, as amended at 57 FR 7558, 3/3/1992; 68 FR 44472, 7/29/2003