mugford's temporary RUDDER. 205 



MUGFORD'S TEMPORARY RUDDER. 



A, (Plate V. Fig. 7.) Is the main stern-post from which the 

 original rudder has been torn 



B, Is the false stern-post made of a spare top-mast sided so as to 

 fit the main stern-post, with mortices to receive the braces h h h, 

 or the fragments thereof which remain upon the post. 



C, Is the temporary rudder made of the (residue of the) top- 

 mast and the sprit sail yard, studding sail booms, or any spars 

 that can be spared with the least inconvenience — They are cut 

 to the proper length and partially sided and firmly bolted or 

 treenailed together. The sides are then flatted a little with the 

 adze and boards nailed across and wooldings of rope bind the 

 whole together as represented in the figure. 



D D D D, Represent the spars of which the rudder is con- 

 structed. 



E, Is a small spar or piece of plank fitted on each side of the 

 false post to lead the guys clear and prevent their chafing; they 

 are also bolted through from side to side and rivetted to secure 

 the false post from splitting, or if bolts are not to be had lashings 

 are substituted as represented in the figure. 



F F, Are stout fiat cleats well nailed or bolted on each side 

 of the false post under the spars E, and embrace the main post. 

 Their use is to sustain the false post against a lateral shock. 



G, Is a yoke made of an iron tiller, or other sufficient substi- 

 tute, firmly fitted through the after part of the rudder near the 

 surface of the water. 



H H H, Are the temporary braces and pintles — They are 

 formed of eye bolts drawn out of the gun carriages or from the 

 various parts of the hull, masts, or caps, and driven into the 

 false post and rudder alternately so that the eyes just meet each 

 other; some of those in the post, below those in the rudder, and 

 others above, in order to confine the rudder from rising — The 

 pintles are made of crowbars, a kedge anchor-stock, or the long- 

 stout bolts out of the windlass bits. 



h h h, Are the old rudder braces or the fragments thereof re- 

 maining on the post. 



I, is the profile of the stern of the ship. 



