17.7 



FIGURE 

 GRAVITY METER 



FIGURE I f . O 

 DATA GENERATOR 



MAGNETO- 

 METER 



REPEATER 



SIGNAL 

 GENERATOR 



H*^ 



TO PDR AMPLIFIER 



PDR 

 SCALE 

 REPEATER 



^n^ 



* » 



•♦ ►^ 



GYROCOMPASS 

 REPEATER 



PITOMETER 

 LOG 



REPEATER 



