TESTS OF THE B24FA TRANSDUCER 



The B24FA transducer was designed for use on sub- 

 marines at varying depths. A test transducer was cali- 

 brated at shallow depth at Transdec, repeatedly pressurized 



BZ4FA 



Directivity pate ems for and 5 00 psig are very 

 similar at 24 and 3 2 kc /s . 



14 



