Macy 



Fig. 6 - Comparative models of jack-up platformis with 

 bottom mats (Bethlehem, Stormdrill III for a 140-foot 

 depth and Marlin No. 3 for a 250-foot depth) 



Fig. 7 - Jack-up platform 

 without a bottom hull for 

 a 300 -foot water depth 

 (Loffland Brothers Ocean 

 Master 1) 



452 



