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Code of Federal Regulations Title 49. Transportation § 49.571.218
Current as of January 02, 2025 | Updated by Findlaw Staff
|
Table 1—Weight Ranges for Impact Attenuation Test Drop Assembly |
|
|---|---|
|
Test headform size |
Weight range 1 —lb kg) |
|
Small․․․․․․․․․․․․․․․․․․․․․․․․․․ |
7.6-8.0 (3.4-3.6) |
|
Medium․․․․․․․․․․․․․․․․․․․․․․․․․ |
10.8-11.2 (4.9-5.1) |
|
Large․․․․․․․․․․․․․․․․․․․․․․․․․․ |
13.2-13.6 (6.0-6.2) |
1 Combined weight of instrumented test headform and supporting assembly for drop test.
|
Table 2 |
||||||
|---|---|---|---|---|---|---|
|
Medium Headform—Exterior Dimensions |
||||||
|
Bottom Opening Z= -3.02 |
Level—5 Z= -2.900 |
|||||
|
θ |
R |
X |
Y |
R |
X |
Y |
|
0 |
4.292 |
4.292 |
0 |
4.293 |
4.293 |
0 |
|
10 |
4.266 |
4.201 |
0.741 |
4.270 |
4.205 |
0.742 |
|
20 |
4.159 |
3.908 |
1.423 |
4.172 |
3.920 |
1.427 |
|
30 |
3.967 |
3.436 |
1.984 |
3.961 |
3.430 |
1.981 |
|
40 |
3.660 |
2.804 |
2.353 |
3.670 |
2.811 |
2.359 |
|
50 |
3.332 |
2.142 |
2.553 |
3.352 |
2.155 |
2.568 |
|
60 |
3.039 |
1.520 |
2.632 |
3.067 |
1.534 |
2.656 |
|
70 |
2.839 |
0.971 |
2.668 |
2.869 |
0.981 |
2.696 |
|
80 |
2.720 |
0.472 |
2.679 |
2.772 |
0.481 |
2.730 |
|
90 |
2.675 |
0 |
2.675 |
2.709 |
0 |
2.709 |
|
100 |
2.703 |
-0.469 |
2.662 |
2.724 |
-0.473 |
2.683 |
|
110 |
2.764 |
-0.945 |
2.597 |
2.794 |
-0.956 |
2.626 |
|
120 |
2.888 |
-1.444 |
2.501 |
2.917 |
-1.459 |
2.526 |
|
130 |
2.985 |
-1.919 |
2.287 |
3.040 |
-1.954 |
2.329 |
|
140 |
3.100 |
-2.375 |
1.993 |
3.175 |
-2.432 |
2.041 |
|
150 |
3.175 |
-2.750 |
1.588 |
3.232 |
-2.799 |
1.616 |
|
160 |
3.186 |
-2.994 |
1.090 |
3.246 |
-3.050 |
1.110 |
|
170 |
3.177 |
-3.129 |
0.552 |
3.237 |
-3.188 |
0.562 |
|
180 |
3.187 |
-3.187 |
0 |
3.246 |
-3.246 |
0 |
|
Basic Plane Z= -2.360 |
Level—4 Z= -2.000 |
|||||
|---|---|---|---|---|---|---|
|
θ |
R |
X |
Y |
R |
X |
Y |
|
0 |
4.272 |
4.272 |
0 |
4.247 |
4.247 |
0 |
|
10 |
4.248 |
4.184 |
0.738 |
4.223 |
4.159 |
0.733 |
|
20 |
4.147 |
3.897 |
1.418 |
4.120 |
3.872 |
1.409 |
|
30 |
3.961 |
3.430 |
1.981 |
3.940 |
3.412 |
1.970 |
|
40 |
3.687 |
2.824 |
2.370 |
3.683 |
2.821 |
2.367 |
|
50 |
3.384 |
2.175 |
2.592 |
3.392 |
2.180 |
2.598 |
|
60 |
3.111 |
1.556 |
2.694 |
3.132 |
1.566 |
2.712 |
|
70 |
2.927 |
1.001 |
2.751 |
2.960 |
1.012 |
2.782 |
|
80 |
2.815 |
0.489 |
2.772 |
2.860 |
0.497 |
2.817 |
|
90 |
2.779 |
0 |
2.779 |
2.838 |
0 |
2.838 |
|
100 |
2.802 |
-0.487 |
2.759 |
2.861 |
-0.497 |
2.818 |
|
110 |
2.887 |
-0.987 |
2.713 |
2.958 |
-1.012 |
2.780 |
|
120 |
3.019 |
-1.510 |
2.615 |
3.098 |
-1.549 |
2.683 |
|
130 |
3.180 |
-2.044 |
2.436 |
3.260 |
-2.096 |
2.497 |
|
140 |
3.306 |
-2.533 |
2.125 |
3.405 |
-2.608 |
2.189 |
|
150 |
3.398 |
-2.943 |
1.699 |
3.516 |
-3.045 |
1.758 |
|
160 |
3.458 |
-3.250 |
1.183 |
3.585 |
-3.369 |
1.226 |
|
170 |
3.475 |
-3.422 |
0.603 |
3.612 |
-3.557 |
0.627 |
|
180 |
3.472 |
-3.472 |
0 |
3.609 |
-3.609 |
0 |
|
Level—3 Z= -1.500 |
Level—2 Z= -1.000 |
|||||
|---|---|---|---|---|---|---|
|
θ |
R |
X |
Y |
R |
X |
Y |
|
0 |
4.208 |
4.208 |
0 |
4.148 |
4.148 |
0 |
|
10 |
4.179 |
4.116 |
0.726 |
4.112 |
4.050 |
0.714 |
|
20 |
4.075 |
3.829 |
1.394 |
4.013 |
3.771 |
1.373 |
|
30 |
3.902 |
3.379 |
1.951 |
3.844 |
3.329 |
1.922 |
|
40 |
3.654 |
2.799 |
2.349 |
3.609 |
2.765 |
2.320 |
|
50 |
3.377 |
2.171 |
2.587 |
3.352 |
2.155 |
2.568 |
|
60 |
3.094 |
1.547 |
2.680 |
3.137 |
1.569 |
2.717 |
|
70 |
2.982 |
1.020 |
2.802 |
2.989 |
1.022 |
2.809 |
|
80 |
2.891 |
0.502 |
2.847 |
2.902 |
0.504 |
2.858 |
|
90 |
2.876 |
0 |
2.876 |
2.884 |
0 |
2.884 |
|
100 |
2.918 |
-0.507 |
2.874 |
2.943 |
-0.511 |
2.898 |
|
110 |
3.021 |
-1.033 |
2.839 |
3.052 |
-1.044 |
2.868 |
|
120 |
3.170 |
-1.585 |
2.745 |
3.225 |
-1.613 |
2.793 |
|
130 |
3.337 |
-2.145 |
2.556 |
3.397 |
-2.184 |
2.602 |
|
140 |
3.483 |
-2.668 |
2.239 |
3.536 |
-2.709 |
2.273 |
|
150 |
3.604 |
-3.121 |
1.802 |
3.657 |
-3.167 |
1.829 |
|
160 |
3.682 |
-3.460 |
1.259 |
3.751 |
-3.525 |
1.283 |
|
170 |
3.725 |
-3.668 |
0.647 |
3.807 |
-3.749 |
0.661 |
|
180 |
3.741 |
-3.741 |
0 |
3.822 |
-3.822 |
0 |
|
Level—1 Z= -0.500 |
Reference Plane Z=0.0 |
|||||
|---|---|---|---|---|---|---|
|
θ |
R |
X |
Y |
R |
X |
Y |
|
0 |
4.067 |
4.067 |
0 |
3.971 |
3.971 |
0 |
|
10 |
4.033 |
3.972 |
0.700 |
3.935 |
3.875 |
0.683 |
|
20 |
3.944 |
3.706 |
1.349 |
3.853 |
3.621 |
1.318 |
|
30 |
3.777 |
3.271 |
1.889 |
3.701 |
3.205 |
1.851 |
|
40 |
3.552 |
2.721 |
2.283 |
3.491 |
2.674 |
2.244 |
|
50 |
3.323 |
2.136 |
2.546 |
3.279 |
2.108 |
2.512 |
|
60 |
3.126 |
1.563 |
2.707 |
3.101 |
1.551 |
2.686 |
|
70 |
2.987 |
1.022 |
2.807 |
2.979 |
1.019 |
2.799 |
|
80 |
2.912 |
0.506 |
2.868 |
2.910 |
0.505 |
2.866 |
|
90 |
2.893 |
0 |
2.893 |
2.890 |
0 |
2.890 |
|
100 |
2.895 |
-0.503 |
2.851 |
2.945 |
-0.511 |
2.900 |
|
110 |
3.064 |
-1.048 |
2.879 |
3.062 |
-1.047 |
2.877 |
|
120 |
3.231 |
-1.616 |
2.798 |
3.228 |
-1.614 |
2.796 |
|
130 |
3.411 |
-2.193 |
2.613 |
3.413 |
-2.194 |
2.615 |
|
140 |
3.560 |
-2.727 |
2.288 |
3.563 |
-2.729 |
2.290 |
|
150 |
3.682 |
-3.189 |
1.841 |
3.681 |
-3.188 |
1.841 |
|
160 |
3.783 |
-3.555 |
1.294 |
3.773 |
-3.546 |
1.290 |
|
170 |
3.885 |
-3.826 |
0.675 |
3.832 |
-3.774 |
0.665 |
|
180 |
3.857 |
-3.857 |
0 |
3.844 |
-3.844 |
0 |
|
Level+1 Z=0.500 |
Level +2 Z=1.000 |
|||||
|---|---|---|---|---|---|---|
|
θ |
R |
X |
Y |
R |
X |
Y |
|
0 |
3.830 |
3.830 |
0 |
3.665 |
3.665 |
0 |
|
10 |
3.801 |
3.743 |
0.660 |
3.613 |
3.558 |
0.627 |
|
20 |
3.725 |
3.500 |
1.274 |
3.554 |
3.340 |
1.216 |
|
30 |
3.587 |
3.106 |
1.794 |
3.436 |
2.976 |
1.718 |
|
40 |
3.399 |
2.604 |
2.185 |
3.271 |
2.506 |
2.103 |
|
50 |
3.205 |
2.060 |
2.455 |
3.102 |
1.994 |
2.376 |
|
60 |
3.044 |
1.522 |
2.636 |
2.959 |
1.480 |
2.563 |
|
70 |
2.927 |
1.001 |
2.751 |
2.854 |
0.976 |
2.682 |
|
80 |
2.861 |
0.497 |
2.818 |
2.792 |
0.485 |
2.750 |
|
90 |
2.855 |
0 |
2.855 |
2.783 |
0 |
2.783 |
|
100 |
2.897 |
-0.503 |
2.853 |
2.832 |
-0.492 |
2.789 |
|
110 |
3.007 |
-1.029 |
2.826 |
2.938 |
-1.005 |
2.761 |
|
120 |
3.176 |
-1.588 |
2.751 |
3.102 |
-1.551 |
2.686 |
|
130 |
3.372 |
-2.168 |
2.583 |
3.294 |
-2.117 |
2.523 |
|
140 |
3.520 |
-2.697 |
2.263 |
3.450 |
-2.643 |
2.218 |
|
150 |
3.643 |
-3.155 |
1.822 |
3.564 |
-3.087 |
1.782 |
|
160 |
3.728 |
-3.503 |
1.275 |
3.637 |
-3.418 |
1.244 |
|
170 |
3.777 |
-3.720 |
0.656 |
3.675 |
-3.619 |
0.638 |
|
180 |
3.782 |
-3.782 |
0 |
3.670 |
-3.670 |
0 |
|
Level +3 Z=1.450 |
Level +4 Z=1.860 |
|||||
|---|---|---|---|---|---|---|
|
θ |
R |
X |
Y |
R |
X |
Y |
|
0 |
3.419 |
3.419 |
0 |
3.061 |
3.061 |
0 |
|
10 |
3.382 |
3.331 |
0.587 |
3.035 |
2.989 |
0.527 |
|
20 |
3.299 |
3.100 |
1.128 |
2.966 |
2.787 |
1.014 |
|
30 |
3.197 |
2.769 |
1.599 |
2.872 |
2.487 |
1.436 |
|
40 |
3.052 |
2.338 |
1.962 |
2.754 |
2.110 |
1.770 |
|
50 |
2.911 |
1.871 |
2.230 |
2.642 |
1.698 |
2.024 |
|
60 |
2.786 |
1.393 |
2.413 |
2.522 |
1.261 |
2.184 |
|
70 |
2.700 |
0.924 |
2.537 |
2.477 |
0.847 |
2.328 |
|
80 |
2.647 |
0.460 |
2.607 |
2.442 |
0.424 |
2.405 |
|
90 |
2.636 |
0 |
2.636 |
2.442 |
0 |
2.442 |
|
100 |
2.691 |
-0.467 |
2.650 |
2.492 |
-0.433 |
2.454 |
|
110 |
2.796 |
-0.956 |
2.627 |
2.599 |
-0.889 |
2.442 |
|
120 |
2.961 |
-1.481 |
2.564 |
2.758 |
-1.379 |
2.389 |
|
130 |
3.147 |
-2.023 |
2.411 |
2.936 |
-1.887 |
2.249 |
|
140 |
3.301 |
-2.529 |
2.122 |
3.081 |
-2.360 |
1.980 |
|
150 |
3.408 |
-2.951 |
1.704 |
3.176 |
-2.751 |
1.588 |
|
160 |
3.479 |
-3.269 |
1.190 |
3.230 |
-3.035 |
1.105 |
|
170 |
3.514 |
-3.461 |
0.610 |
3.270 |
-3.220 |
0.568 |
|
180 |
3.502 |
-3.502 |
0 |
3.271 |
-3.271 |
0 |
|
Level +5 Z=2.250 |
Level +6 Z=2.560 |
|||||
|---|---|---|---|---|---|---|
|
θ |
R |
X |
Y |
R |
X |
Y |
|
0 |
2.526 |
2.526 |
0 |
1.798 |
1.798 |
0 |
|
10 |
2.521 |
2.483 |
0.483 |
1.798 |
1.771 |
0.312 |
|
20 |
2.464 |
2.315 |
0.843 |
1.757 |
1.651 |
0.601 |
|
30 |
2.387 |
2.067 |
1.194 |
1.719 |
1.489 |
0.860 |
|
40 |
2.305 |
1.766 |
1.482 |
1.678 |
1.285 |
1.079 |
|
50 |
2.232 |
1.435 |
1.710 |
1.652 |
1.062 |
1.266 |
|
60 |
2.174 |
1.087 |
1.883 |
1.641 |
0.821 |
1.421 |
|
70 |
2.144 |
0.733 |
2.015 |
1.645 |
0.563 |
1.546 |
|
80 |
2.132 |
0.370 |
2.100 |
1.673 |
0.291 |
1.648 |
|
90 |
2.147 |
0 |
2.147 |
1.712 |
0 |
1.712 |
|
100 |
2.213 |
-0.384 |
2.179 |
1.809 |
-0.314 |
1.782 |
|
110 |
2.316 |
-0.792 |
2.176 |
1.925 |
-0.658 |
1.809 |
|
120 |
2.463 |
-1.232 |
2.133 |
2.066 |
-1.033 |
1.789 |
|
130 |
2.624 |
-1.687 |
2.010 |
2.213 |
-1.423 |
1.695 |
|
140 |
2.763 |
-2.117 |
1.776 |
2.358 |
-1.806 |
1.516 |
|
150 |
2.863 |
-2.479 |
1.432 |
2.469 |
-2.138 |
1.235 |
|
160 |
2.919 |
-2.743 |
0.988 |
2.536 |
-2.383 |
0.867 |
|
170 |
2.954 |
-2.909 |
0.513 |
2.561 |
-2.522 |
0.445 |
|
180 |
2.958 |
-2.958 |
0 |
2.556 |
-2.556 |
0 |
|
Level +7 Z=2.750 |
Notes: |
||||
|---|---|---|---|---|---|
|
θ |
R |
X |
Y |
||
|
1. |
Apex is located at (-0.75, 0, 3.02) for |
||||
|
(X,Y,Z) or (0.75, 180, 3.02) for |
|||||
|
0 |
1.081 |
1.081 |
0 |
(R, θ, Z) |
|
|
10 |
1.088 |
1.072 |
0.189 |
||
|
20 |
1.055 |
0.991 |
0.361 |
2. |
Center of ear opening is located at |
|
30 |
1.039 |
0.900 |
0.520 |
(0.40, 2.78, -2.36) for (X,Y,Z) or |
|
|
40 |
1.039 |
0.796 |
0.668 |
(2.80, 81.8, -2.36) for (R,θ,Z). |
|
|
50 |
1.052 |
0.676 |
0.806 |
||
|
60 |
1.068 |
0.534 |
0.925 |
3. |
Scale all dimensions by 0.8941 for |
|
70 |
1.106 |
0.378 |
1.039 |
small headform. |
|
|
80 |
1.171 |
0.203 |
1.153 |
4. |
Scale all dimensions by 1.069 for large |
|
90 |
1.242 |
0 |
1.242 |
headform. |
|
|
100 |
1.422 |
-0.247 |
1.400 |
5. |
Headform is symmetrical about |
|
110 |
1.489 |
-0.509 |
1.399 |
the mid-sagittal plane. |
|
|
120 |
1.683 |
-0.842 |
1.458 |
||
|
130 |
1.801 |
-1.158 |
1.380 |
6. |
Units: |
|
140 |
1.954 |
-1.497 |
1.256 |
R,X,Y,Z — inches. |
|
|
150 |
2.083 |
-1.804 |
1.042 |
θ — degrees. |
|
|
160 |
2.138 |
-2.009 |
0.731 |
||
|
170 |
2.175 |
-2.142 |
0.378 |
7. |
To obtain metric equivalents in centi- |
|
180 |
2.175 |
-2.175 |
0 |
meters, multiply each figure by 2.54. |
Cite this article: FindLaw.com - Code of Federal Regulations Title 49. Transportation § 49.571.218 - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-49-transportation/cfr-sect-49-571-218-app/
FindLaw Codes may not reflect the most recent version of the law in your jurisdiction. Please verify the status of the code you are researching with the state legislature before relying on it for your legal needs.
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