oO Oo I Dn on fF WA WD KF 
Dw YP YP YF BP YP YP BP BP PP BB 
© 0) Si @ @ tS @ @ © © 
SiO ts Figures 
Shot and Shooting Ship 
Bottom and Surface=bottom Reflections 
inking 
Sinking 
Sinking 
Sinking 
Sinking 
Sinking 
Sinking 
Sinking 
Sinking 
Sinking 
Rate 
Rate 
Rate 
Rate 
Rate 
Rate 
Rate 
Rate 
Rate 
Rate 
Ray path for 
Ray paths for D, Ry» 
Graph for Correction 
Graph for Correction 
Graph for Correction 
Graph for Correction 
Graph of Topographic 
Graph of Ry 
Graph 
Graph 
Graph 
Graph 
Graph 
Graph 
Graph 
Graph 
Graph 
Graph 
Ry 
for 
for 
for 
for 
for 
for 
for 
for 
for 
for 
Z - 1 # Charges of 4 # Blocks 
3 - 5 # Charges of = # Blocks 
8 - 10 # Charges of 3 # Blocks 
18 - 25 # Charges of = # Blocks 
50 # Charges of = # Blocks 
25 # Canadian Depth Charges 
Mk 42T 100 # Aerial Bombs 
Mk 30 100 # Aerial Eombs 
Mk VI 300 # Depth Charges 
Mk 54 350 # Aerial Depth Charges 
and G 
of Ry to Reference Surface 
of Ro to Reference Surface 
of Rz to Reference Surface 
of G to Reference Surface 
Corrections 
- D versus Ry 
