Uj/ 



VIEWIIJG/VIEWPORT IMFROV:-:-tENTS 



There are a nurabei: of alternativ3s available concernin^j the 

 viewport structure :- 



1. Duplicate the exi3tin[; viewport- liull inr.crtr: for ^o'lr v/inlows 



2. Opti'iaze the yiewport hull inserts for four windows 



3. Provide two forward looking viewports, side by side, by- 

 decreasing th-2 size of aiid jriovin3 laterally the existing 

 fons'ard looking viewport, optimize zhe re;-:aining three window 



• inserts 

 /^. OptiiTiize the viewport hull inserts for four windows, but 

 ucilize two of the electrical p^-netrations at the forward 

 window as peep-holes v.dth associated optical system for 

 viewing, and growth possibility to utilize fiber optics in 

 the future . 

 The two week tirr.^ fraae allowed for preparation of this report was 

 not sufficient to permit structural analysis of the ir.serts in way of the 

 viewports. However, based on past experience, optimization of ti.e existing 



Inserts is feasible and sliould be the li dnr inuia that is do ne. It is further 

 recoranended that the peen-hole with associated optics/fiber optics be i '' ^ 

 installed m the new press. u-e hull. 



Consideration .iiust bo given to the viewport materials and shape if 

 deeper operating depths are conte^jplated for the rebuilt ALVI!). Cyclic, 



