Accuracy 
Console indicator — + 1.5 percent of full scale 
Current output — + 0.75 percent of full scale 
Stability — Less than 0.25-degree drift per hour after warmup. 
Output current — +1 milliampere into a 3000-ohm load. 
Rudder position (digital) 
Full equipment not furnished. 
Range — 45—0—45 degrees 
Accuracy 
Console indicator — + 1.5 percent of full scale. 
Pulse output — + 0.1 percent of full scale. 
Output — Rectangular wave, 10 cycles per second per degree of rudder offset; 
relay contact closure for indication of direction. 
Rudder running time 
Indicator — Resettable electric clock on console. 
Accuracy — + 0.1 second. 
3.2.2 Propulsion Channels (2 identical channels) 
Console indicator 
Range — 0—1500 or 0—3000 rpm 
Accuracy — + 1.5 percent of full scale 
Calibration — Internal with 60-cycle power line reference. 
Output — 
Type of circuit — Rectangular wave to drive digital counter. 
Amplitude — 25 volts into 600-ohm load. 
Frequency — 10 cycles per revolution of propulsion shaft. 
Accuracy — May be measured to the nearest tenth of a revolution with 
readings taken over any desired period of time. 
3.2.3 Spare Data Channel 
Frequency response — Depends on subcarrier channel used. 
Accuracy — 
Console indicator — + 1.5 percent of full scale 
Output current — + 0.75 percent of full scale plus transducer errors. 
I-7 
