Page:NTSB RAR-77-10.pdf/33

 APPENDIX E — 30 — TABLE 1. TRANSIT CAR ACCIDENT DATA

szmbol Value Egglsnation

g 386 in./sec2 Acceleration due to gravity

W1 54,000 lb Height, leading car, impacting consist

R 54,000 lb Beight, second car, impacting consist

92 52,000 lb Height. third_car, impacting consist

Hf 52,000 lb Weight, fourth car, impacting consist

R 52,000 lb Height, fifth car. impacting consist

W: 52,000 lb Weight, sixth car, impacting consist

W7 54,000 lb Height, seventh car, impacting consist

vs 54,000 lb weight, eighth car, impacting consist

W'l 56,000 lb Height, leading car, impacted consist

W‘Z 56,000 lb Height, second car, impacted consist

“'3 56,000 lb Height, third car, impacted consist

'4 56,000 lb Height, fourth car. impacted consist

W's 56,000 lb weight, fifth car, impacted consist

W's 56,000 lb Height, sixth car, impacted consist

G 56.5 in. Track gage

e 3.5 in. Track superelevation

Y £2 in. Height of c.g., leading car of im—

c pasting consist

8 1h Number of gears stroked, impacting consist

N' 10 Number of gears stroked. impacted consist

X 24,000 lblin.* Draft gear spring censtant

S 1.25 in.* Draft gear stroke

P 5,000 lb* Draft gear spring preload

R 49 in. Anticlimber radius

CY 36,000 psi Anticlimher yield stress

61 3/4 in. Anticlimber deflections, leading cars

62 1/4 in. Anticlimber deflections, remaining cars

V 90,000 lb Shear pin load

d llé in. Shear pin deflection

n 12 Number of sets of pins sheared

B 3.2 mph/sec Braking rate, impacted consist

D 25 it Total movement, impacted consist


 * Estimated data