















, drill 1/4 X 20, 8 place 

 y 45 degrees apart 









^ 



^ 

 ^ 



^yy y 





5.005 in. 



/5/ 



^ 

 / 



; 







5.000 in. 





^/ 



// 









/■/ 



^ 







^ 



// 







> 



/■/ 



/ 







^ 

 ^ 



//! 



'^ 







/y 



/ 

 ^ 



6 





/ / 



•. 





, 





>l/64 in. R 





^ 

 ^ 

 ^ 



^ 





3 



in. 



// 



/ 

 ^ 









vvv 



1 





/// 



^ 



' 





1 32\ 



^ 3.335 in. J 







materia 



: mild steel 









3.330 in. 

 8 in. 







_ 



Figure B-21. Details of assembly used to determine the relationship between the 



window's critical pressure and t/D; ratio for 3.33-inch (Dj) windows. 



■^ ff^-^^^.x."^ 



■3-1/3 in.- 





flange 



Figure B-22. Schematic of 3.33-inch (D|) window and flange in end closure of 

 Mk I 9-inch pressure vessel. 



43 



