1000 

 900 

 800 

 700 

 600 



500 

 400 



300 



40 



30 



20 



10 



.2 



.8 1.0 



2.0 



3.0 4.0 5.0 6.0 8.0 10.0 



K-FACTOR 



Fig. 13.9 Minimum standoff distance for implodable items (spherical pressure hull). 



hide's greatest diameter and fouling on a 

 wire or line is a distinct possibility, the rules 

 are flexible. There is no limit to the size of an 

 object which can be attached externally to 

 the vehicle, but if it apparently protrudes to 

 the point where fouling is possible it must be 

 jettisonable. Again, there is no required 

 method of jettisoning, but pyrotechnic re- 

 lease devices, e.gr., explosive bolts (Fig. 



13.10), are preferred over weak-link devices. 

 One type of component which can cause 

 problems in this area is the manipulators 

 or mechanical arms. If in the process of 

 repairing or moving a heavy cable or piece of 

 hardware, the manipulator fails and its grip 

 cannot be released or if it becomes fouled in 

 an appendage, it must be possible to jettison 

 the arm(s). In general, the more streamlined 



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