OTIU'R STRUCTURAL CHyLNG£3 



The insert at tie access hatch can be optimized by xitiliiiinj;^ the 

 came procedure as developed for the view port inserts. The M.'.'RDC lias 

 programmed Gifford's fi-ite element analysis for these inserts. Unfortu- 

 nately this analysis reiuires about one v;eek set-up ti:ne for dividing 

 the insert into the nec-^ssai'y elements, obtaining coordinates for the 

 elements, etc, prior to solving tlie problem on the co::;putcr. iIov;ever, 

 when the Titanium sphere project is officially initiated this computer 

 program will be utilized for optimization of all hull inserts. 



Electrical pen-,-.rator fittings compatable vith the AUTSC vehicle 



v;ill be utilized. This entails providing opening for 23 fittings rather 



Cl)zck 



than the 12 now on ALVH, This does not include, at tl-iis tirre, any 

 necessary'" structural cmnges to the penetrators themselves to account 

 for thicker inserts, de-.per operating depths, etc. 



Prelimnary investigations indicate that the added deflections 

 attendant with the use of titaniixm in the pressure sphere should not 

 cause binding of the release mechanism. However some redesign may bs i a /^ i ** 

 necessaiy in the area of the penetration for the release mechanism shaft. I vj-^jq t^j.^. 



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