Century NSD-360A Non-Slaved Compass System (HSI) Non-Slaved Compass System (HSI)

Product Information
Part Number: P/N: 52D136-1333
Condition: Overhauled
Certification: 8130-3
Voltage: 14/28 V
Included: Connectors (if needed), 6 Month Warranty
Comments: Requires 5 in/Hg Air for proper Gyro operation
We typically have a 1-2 week lead time for Compass Systems / HSIs. If you're in a hurry, please let us know, and we will do our best to accommodate your schedule.

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The Century NSD-360A HSI is a popular, less expensive alternative to the King KCS-55A. The biggest difference is that the NSD-360A is operated by vacuum, while the KCS-55A is electric.

This version of the NSD-360A is more affordable because it is not slaved. This means that the Gyro is subject to precession, requiring periodic correction from the pilot.

The NSD-360A shows both your heading and course information on the same display. It may be interfaced with an Autopilot or Flight Director. It also has a Glideslope indication that appears when flying a precision (ILS or WAAS GPS) approach. Like all HSIs, the "top-down" perspective combines information that would normally be shown separately on a Directional Gyro and CDI.

The NSD-360A features:

Full-time 360-Degree Heading Presentation
Rectilinear Course Deviation Indicator
Full View Glideslope Indicator
Masking Glideslope Warning Flag
45-Degree Tic Marks
Referencing Heading Bug
Failed Gyro Warning Flag
Free Gyro Mode
Gyro Caging Knob
Lost Power Warning Flag
Discrete NAV Warning Flag
GPS, RNAV, and LORAN Compatible
Autopilot Outputs for Heading and Course
Continuously Caged Heading and Course Selection Knobs
Reference Aircraft and Heading Lubber Line
Diffused Incandescent Perimeter Lighting
Course Arrow with Reciprocal Indicators
TSO'd

The course information displayed on the NSD-360A may come from a variety of sources, including a GPS. The following NAV Receiver / RNAV Navigation Systems are also compatible with the NSD-360A:

GNS-430 NAV/COMM/GPS/Glideslope
GNS-430W NAV/COMM/GPS/Glideslope
GNS-530 NAV/COMM/GPS/Glideslope
GNS-530W NAV/COMM/GPS/Glideslope
KX-165 NAV/COMM - 14V or 28V
KX-165A NAV/COMM
KX-155 NAV/COMM (with an external VOR/LOC Converter) - 14V or 28V
SL-30 NAV/COMM
KNS-80 NAV/RNAV/DME/Glideslope
KNS-81 NAV/RNAV/Glideslope
VIR-351 NAV
and more... Contact us for compatibility

HSIs are available in either Serviceable or Overhauled condition. We strongly recommend the Overhauled option, as shown here. Unlike many other avionics items, Gyros contain high-speed moving parts that will wear over time. Having a system Overhauled will ensure the reliability you expect from an important and expensive system. Overhauled systems come with a 6 month warranty.

We do not typically stock Overhauled NSD-360As because the "clock" would start on the overhaul warranty. Instead, we will have an HSI overhauled for you to get you a fresh inspection and full warranty period. Please allow 1-2 weeks before shipping. (If you need an NSD-360A quickly, please contact us to see what options we can offer.)