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BELL SYSTEM TECHNICAL JOURNAL 



1. Enter, on Line 1, Table I, the weight (TF2) in pounds, of the sus- 

 pended item. This includes the weight of the cradle or other holding 

 arrangement and one-third the estimated weight of the springs. 



b=0.3 



b=0.2 



0.1 0.2 0.3 0.4 0.5 6 0.7 0.8 9 1.0 



Xo 



X 

 Fig. 1.8.1 — Tension spring package design curve. Equation (1.8.1). 



2. Enter, on Line 2, the height of drop (Jt) in inches. 



3. Enter, on Line 3, the maximum allowable acceleration (G,„) in units 

 of ''number of times gravity," This should be determined before- 

 hand from tests on the item to be packaged. 



4. Enter, on Line 4, the dimension 0:0 (inches). 



