ANALYSIS OF MAINTENANCE AND 

 REPLACEMENT COSTS 



It is difficult to obtain cost data on the purchase and maintenance of 

 Fleet moorings over an extended period of time. Also the maintenance pro- 

 cedures and schedules vary greatly at different naval activities. Cost data for 

 the removal, overhaul, and replacement of six different moorings were pro- 

 vided by Public Works Center, San Diego. These moorings are described in 

 Table 15. From this table it can be seen that the relative costs associated 

 with the rehabilitation of buoys and their chains vary from 50:50 for a 

 three-legged Class D mooring to 30:70 for a 7- or 8-legged Class BB mooring. 



Table 15. Description of Moorings Used in Cost Analysis 



Mooring 

 No. 



Mooring 

 Class 



Number 

 of Legs 



Percent of 



Rehabilitation 



Cost 



Holding 



Power 



(lb) 



Type of Ships Moored 



Buoy 



Chain 



BM16 

 16 

 34 

 35 

 36 

 37 



D 

 B 



BB 

 BB 

 BB 

 BB 



3 

 4 

 7 

 8 

 8 

 7 



50 

 40 

 30 

 30 

 30 

 30 



50 

 60 

 70 

 70 

 70 

 70 



75,000 

 125,000 

 250,000 

 250,000 

 250,000 

 250,000 



barges and LSTs 

 cruisers and destroyers 

 cruisers and destroyers 

 cruisers and destroyers 

 cruisers and destroyers 

 cruisers and destroyers 



The work centers performing the various phases of the work are listed 

 in Table 1 6. Sandblasting the metal for painting was done by Work Center 540 

 (General Support Shop). Both rigging and diving services fall under Work 

 Center 728, but this number will refer only to rigging service unless otherwise 

 specified. 



Tables 17 through 21 list the Planning and Estimating Branch estimates 

 for work scheduled for moorings BM16, 16, 34, 35 and 36, and 37, respectively. 

 The work on each mooring was accomplished at different times; therefore, these 

 tables cannot be compared to each other without adjusting for cost charges with 

 time. The tables are included to indicate only the relative costs for each phase 



39 



