8311 



HYDROGRAPHIC MANUAL 



Page 77(3 



Figure 184.— Record of Radio Acoustic Ranging data (double page of Bomb Record reduced about one-half). 



with the position number repeated on the right-hand page as illustrated. This provides 

 for four returns, and a fifth and sixth return may be recorded in the horizontal space 

 provided for remarks if this space is not needed for its intended purpose. 



The following general instructions shall be followed in recording data in the Bomb 

 Record: 



