4'/2-inch circumference Samson 2-in-l nylon rope 

 8-inch circumference Samson 2-in-l nylon rope 



The curve for nylon rope in figure D-6 shows the typical load versus elongation curve 

 for Plimoor nylon rope. Curve B of figure D-7 shows the typical load versus elongation 

 characteristic of Samson 2-in-l nylon rope. The linearized spring constant of the rope is 

 the slope of the load-elongation curve at the static load (ALVIN weight in water) point. 

 From figures D-6 and D-7, linearized spring constants for the four nylon ropes specified 

 above were determined as criven in table 1. 



50 



X 

 I- 

 (D 



Z 



UJ 



cc 



\- 



V) 



z 

 < 



ui 

 cc 



CO 

 LU 



o 

 < 

 cc 



UJ 



> 



< 



z 



UJ 



o 

 cc 



UJ 



a. 



< 



Q 

 < 

 O 



40 



30 



20 



10 - 



THIS INFORMATION WILL 

 ALSO APPLY TO PLAITED 

 ROPE AFTER THE INITIAL 

 ELONGATION IS ABSORBED. 



10 



15 



20 



25 



30 



PERCENT ELONGATION 



Figure D-6. Typical Elongation of Plimoor Nylon Rope 

 After First Loading to 50% of Strength. 



68 



