APPENDIX 
The following relates to the installation, the servicing, and so forth, of the moor- 
ing shown in figure 1. This should serve as a guide for taut-moored systems placed 
by ships in general. 
SHIPBOARD INSTALLATIONS 
Certain basic equipment is required for the proper and safe handling of mooring 
components on board ship regardless of the number of moorings to be installed 
or the frequeney with which they will be serviced or retrieved. These latter factors, 
however, may well determine the permanency of installations on board and the 
elaborateness of the equipment. 
The basic special equipment required consists of a suitable winch for spooling 
and controlling the wire, a suitable davit for handling the wire and the attached 
gear over the side, a suitable platform adjacent to the davit (and at main deck 
level) from which to work, and launching skids adjacent to the work platform. 
These, together with the equipment normally available, including a boom and 
two or three conveniently located gypsy heads, constitute the essential installed 
handling equipment. 
AccESSOoRY HANDLING EQUIPMENT 
The required accessory handling equipment includes a suitable metering sheave 
with remote indicator and a chain fall of about 1-ton capacity. Additional sheaves 
and fair-leads should be supplied as necessary for the mooring wire and the 
handling lines. A retrieving ramp may be advisable if many skiffs are to be 
handled. 
SPooLING WINCH 
A special winch capable of paying out the mooring wire directly from the factory 
spool would be desirable and would save the time otherwise required for respooling 
the wire onto a winch drum. The wire cannot ordinarily be spooled taut enough 
on the factory spool, and the “cutting-in” of the wire makes direct pay-out 
hazardous. However, standard hydrographic winches, such as the Markey type 
DES-7, fifteen horsepower, have been used very satisfactorily for this purpose. 
The only modifications that may be required to the hydrographic winches are 
(1) to insert wooden fillers about the drum to increase its diameter and thus avoid 
damage to the wire if it otherwise would be bent about too small a radius, and 
(2) to change the gears in the level wind mechanism as necessary to provide for 
proper spooling of the wire when its size is greatly different from that of the 
hydrographie wire. 
As even an experienced crew may take two hours to spool 16,000 feet of wire 
on a winch, it is important to perform this task before arriving on station. 
Work Davit 
The work davit may be a reinforced hydrographic davit. The davit must accom- 
modate (1) the remote-reading metering sheave (Kahl type or similar), which 
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