POSITION of CHARGE C and GAUGES G 
( DISTANCES in FEET) ( DISTANCES in FEET) 
SURFACE 
TONS PER SQUARE INCH 
THOUSANDTHS OF A SECOND 
POSITION of CHARGE C and GAUGES G 
131 
Fig. 5. 300 lbs. of 40/60 Amatol (D, Table VIII.); Fig. 6. 300 lbs. of 40/60 Amatol (D, Table VIII.); rom 
average of Shots 15, 97, 99; charge still shallower Shot 64; charge on surface; gauges 50 feet from 
than in Fig. 4; gauges 50 feet from centre of charge; centre of charge; maximum pressure = . 8. 
maximum pressure = .77. 
POSITION of CHARGE C and GAUGES G 
( DISTANCES in FEET ) 
HEE 
aa 
—— 
HEE 
TONS PER SQUARE INCH 
efestsscreeseeae 
THOUSANDTHS OF A SECOND 
Fig. 7. 467 lbs. of 80/29 Am-tol (DX, Table VIII.); average of Shots 27, 28, 30, 38; gauses 50 feet 
from centre of charge; maximum pressure = The 
