The NAC-3 Autopilot Computer is the brains behind your
Simrad autopilot system. It contains the electronics needed to operate a
hydraulic steering pump or mechanical drive unit, while also interfacing with
other components including heading sensors and rudder feedback units. The
NAC-3 was designed for boats ten metres (35 feet) or greater in length and is
rated to operate high-current pumps, mechanical drive units, and solenoid
valves (30 amps continuous/50 amps peak).
Key Features
- Reliable autopilot performance based on Simrad Continuum steering
technology
- Recommended for boats above 10 metres (35 feet) in length
- High-current output of 30 amps continuous, 50 amps peak
- Clutch output (3 amps maximum)
- Compatible with high-current drive pumps, mechanical drives, hydraulic
linear drives, and solenoid valves
- Virtual rudder feedback for simplified installation aboard outboard and
sterndrive (inboard/outboard) boats
- Supports Simrad RF25 and RF300 rudder feedback units
- NMEA 2000? connectivity to heading sensors, rudder feedbacks, dedicated
autopilot controllers, and multifunction displays
- NMEA 0183? input
Simrad Continuum steering technology
Every Simrad steering innovation builds upon a legacy encompassing over sixty
years of autopilot development, which continues today at Simrad Yachting?s
autopilot research hub in Norway. This legacy is exemplified by the Continuum
algorithm: the software that drives Simrad steering technology. Continuum brings
all those years of research and on-water experience to your helm, for a smart
pilot you can trust to take the wheel.
High-Current Output
The NAC-3 Autopilot Computer is recommended for boats above 10 metres (35
feet) in length. It is rated for high-current output of up to 30 amps continuous
and 50 amps peak, plus a clutch output; this is suitable to operate high-current
drive pumps including the Simrad RPU160 and RPU300, mechanical drives such as
the Simrad DD15, hydraulic linear drives such as the HLD2000 series, and
solenoid valves.
Virtual Rudder Feedback
Simrad Virtual Rudder Feedback (VRF) technology eliminates the need to
install a separate rudder feedback unit aboard outboard and sterndrive
(inboard/outboard) boats. This reduces overall autopilot system cost and
complexity, and is ideal where a feedback unit is impractical due to mechanical
constraints.
Rudder Feedback Units
Rudder feedback units are sensors that connect to your rudder via a
mechanical linkage and continuously report actual rudder position to your
autopilot computer ? allowing the Simrad Continuum steering algorithm to make
the best-informed steering decisions possible. These sensors are typically used
on boats with inboard engines, on larger vessels, and in special applications
where Virtual Rudder Feedback may not be suitable. The NAC-3 supports SimNet or
NMEA 2000? connected Simrad RF25 feedback units, and rudder feedback sensors
with variable frequency output including the Simrad RF300.
Easy Installation
Industry-standard NMEA 2000? networking and NMEA 0183? input allow simple
connectivity to heading sensors, rudder feedback units, autopilot controllers,
and multifunction displays located anywhere on board.
Installation Manual
NAC-2 and NAC-3 Commissioning Manual (en-us)
WARNING:
This product can expose you to chemicals including Di-n-hexyl Phthalate (DnHP)
which is known to the State of California to cause reproductive harm, and
Vinyl Chloride which is known to the State of California to cause cancer. For
more information go to 
