Rf300 rudder feedback unit, Heading sensors, Rc36 rate compass – Simrad Autopilot AP26 User Manual
Page 14: Rfc35 electronic fluxgate compass (optional), 7 rf300 rudder feedback unit, 8 heading sensors

Simrad AP26 and AP27 Autopilots
12
20221586B
Autopilot computer comparison chart:
AC10
AC20
(AC40)
Supply voltage
10-28 V
10-40 V
Motor current (continuous/peak)
6/10 A
10/20A (20/40A)
Clutch/bypass current
1,5 A*
1,5 A*
Number of control units
2
7
NMEA 0183 ports (input/output)
1
2
Solenoid output
x
x
Input for NFU control
x
x
External alarm
x
Radar clock/data interface
x
Input for NMEA compass
x
* 3A on later models.
1.7
RF300 Rudder Feedback unit
Rudder feedback unit with transmission link and 10 m (30 feet)
of cable. Transforms the angular travel of the rudder to a digital
signal read by the autopilot steering computer.
1.8
Heading Sensors
The AP26 and AP27 autopilots can be used with the following
combinations of heading sensors:
RC36 Rate compass
Fluxgate compass with integrated rate sensor. Provides a dramatic
improvement to the dynamic performance of both the autopilot
and a stabilized radar display.
RC36 comes as standard with the autopilot.
RFC35 Electronic Fluxgate Compass
(optional)
A compact heading sensor from Simrad with 15 m (45 feet) of
cable. The direction of the earth's magnetic field is sensed by a