OUR COMMENTS ON HSI EQUIPMENT

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APG - Eastern Avionics International

The HSI, or Horizontal Navigation Indicator or Pictorial Navigation Indicator, is perhaps one of the most useful although misunderstood instruments around. Very simply, it combines your directional gyro and Nav indicator into one instrument that reduces pilot workload by providing heading, course reference, course deviation and glide slope information all in one visual aid.

In addition, an HSI makes it easier to visualize the aircraft's position with reference to the selected course or holding patterns. The "split needle" presentation made up of the course and reciprocal pointers and the VOR/LOC deviation indicators clearly shows both selected course and course deviation. It gives standard sensing and course deviation indication on back course ILS approaches, provided the front course heading is set under the head of the course pointer and you fly toward the course deviation indicator. It also provides convenient 45 degree tic marks to help visualize procedure turns and reciprocals so that you don't need to memorize outbound/inbound headings or add/subtract 45 degrees for intercepts or offsets. A heading bug is provided for autopilot coupling or as a heading reminder if your aircraft is not equipped with an autopilot.

You may also consider a slaved HSI. Slaving automatically compensates for gyro heading errors and keeps your HSI in agreement with your compass. It uses a magnetic flux sensor mounted in the wing or tail of your aircraft to sense changes in magnetic heading and sends corrective signals to your HSI. You can even add an RMI Bootstrap that allows an RMI compass card to be controlled by the HSI. All of our models feature internal lighting and are TSO'd.

At APG-Eastern Avionics, we can provide you with an HSI appropriate for your aircraft, with the proper interfaces for your radios and autopilot. Our pricing is very competitive. Call us for all the details.

Century's Tips on Flying an HSI...
To function properly, you must properly set an HSI's compass card as well as the selected course and heading information. Because the HSI is a gyroscopic device, you must set it to the magnetic heading and check it periodically. Even in a slaved system, the action of the slaving meter and compass card correspondence with the magnetic compass should be checked periodically. When you fly back course approaches, set in the ILS front course heading and then fly "the picture" using normal response to needle movements (i.e., needle left, correct left; needle right, correct right). Don't confuse a radial (which radiates outward from a VOR) with an inbound course (i.e., the reciprocal) when setting the course pointer. All HSIs are equipped with "TO-FROM" NAV function, heading and glide slope warning flags. Remember, if any of the INOP/WARN flags appear, don't fly that portion of the instrument!

AVIONICS REVIEWS

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Century Flight Systems NSD-360A-15 Non-Slaved HSI $0.00 century nsd360a/ns CALL FOR PRICING The Century NSD-360A is among the most popular HSI systems ever built. By integrating a vacuum driven heading gyro into the HSI display, Century was able to keep the system easy to install and reasonably priced. This non-slaved model is the least expensive HSI on the market. The “A” model is the latest version. FEATURES of Century's HSIs: • 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 • 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 Dimensions and Weight: • Height: 3.38 inches • Width: 3.38 inches • Panel Cutout: 3-ATI • Depth: 8.69 inches (NSD360A gyro port and fitting not included.) • Weight: 4.6 lbs. (instrument only). Call us for Special Package Discounts!

Century Flight Systems NSD-360A Slaved HSI $0.00 century nsd360a CALL FOR PRICING The Century NSD-360A is our most popular Slaved HSI system. By integrating a vacuum driven heading gyro into the HSI display, Century was able to keep the system easy to install and reasonably priced. The “A” model is the latest version. This is a 2 piece system. The HSI easily installs is a standard 3" ATI instrument hole. The magnetic flux sensor mounts in the wing or tail. FEATURES of Century's HSIs: • Full-time 360-Degree Heading Presentation • Rectilinear Course Deviation Indicator • Full View Glideslope Indicator • Masking Glideslope Warning Flag • Built-in Slaving Indicator (slaved models only) • 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 • RNAV and LORAN Compatible • Automatic Magnetic Gyro Slaving (slaved models only) • 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. Dimensions and Weight: • Height: 3.38 inches • Width: 3.38 inches • Panel Cutout: 3-ATI • Depth: 8.69 inches (NSD360A gyro port and fitting not included.) • Weight: 4.6 lbs. (instrument only). Call us for Special Package Discounts!

Century Flight Systems NSD-360A Slaved HSI w/ Bootstrap $0.00 century nsd360a/b CALL FOR PRICING The Century NSD-360A Slaved HSI with Bootstrap is the least expensive system of its type. It uses vacuum driven heading gyro into the HSI display for easy installation. This slaved model include a magnetic flux sensor. Bootstrapping provides output to a Moving Map, RMI, or Stormscope. FEATURES of Century's HSIs: • Full-time 360-Degree Heading Presentation • Rectilinear Course Deviation Indicator • Full View Glideslope Indicator • Masking Glideslope Warning Flag • Built-in Slaving Indicator (slaved models only) • 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 • RNAV and LORAN Compatible • Automatic Magnetic Gyro Slaving (slaved models only) • 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 Dimensions and Weight: • Height: 3.38 inches • Width: 3.38 inches • Panel Cutout: 3-ATI • Depth: 8.69 inches (NSD360A gyro port and fitting not included.) • Weight: 4.6 lbs. (instrument only). Call us for Special Package Discounts!

Century Flight Systems NSD-1000 Slaved HSI $0.00 nsd1000 CALL FOR PRICING The Century NSD-1000 is Century's electric gyro driven Slaved HSI. By integrating the gyro heading system into the HSI display, Century was able to keep the system easy to install and reasonably priced. This is a two piece system; the Indicator/Gyro fits a standard 3" ATI instrument hole. A magnetic flux sensor provides slaving and is usually mounted in the wing or tail. TSO's C5e, C6d, C9c, C52a. FEATURES of Century's HSIs: • Built-in Electric Gyro (NSD1000 only) • Full-time 360-Degree Heading Presentation • Rectilinear Course Deviation Indicator • Full View Glideslope Indicator • Masking Glideslope Warning Flag • Built-in Slaving Indicator * • 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 • RNAV and LORAN Compatible • Automatic Magnetic Gyro Slaving (Slaved models only) • 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 . Dimensions and Weight: • Height: 3.38 inches • Width: 3.38 inches • Panel Cutout: 3-ATI • Depth: 8.69 inches (NSD360A gyro port and fitting not included.) • Weight: 4.6 lbs. (instrument only). Call us for Special Package Discounts!

Century Flight Systems NSD-1000 Slaved HSI w/ Bootstrap $0.00 century nsd1000b CALL FOR PRICING The NSD-1000 slaved HSI with Bootstrap has the same features as the NSD-1000 described above. Bootstrapping provides output to a Moving Map, RMI, or Stormscope. Call us for Special Package Discounts

Bendix/King KCS-55A HSI System $15,833.00 $13,589.00 On Sale! KCS0055A-01 The remote-mounted KCS 55A Compass System is an affordable automatic slaving compass system, automatically displaying precise aircraft magnetic heading without manual setting. With remote electric gyro, the KCS 55A system includes a KI 525A HSI, KG 102A Directional Gyro, KMT 112 Magnetic Slaving Transmitter, and a KA 51 Slaving Control Compensator unit with bootstrap heading synchro for use with a KI 229 RMI. Display elements include: Slaved gyro magnetic heading Selected heading Selected VOR/GPS/RNAV or LOC course GPS/RNAV/VOR/Localizer deviation TO/FROM, GPS/RNAV or VOR indicator Glideslope deviation Weight: KI 825: 3.00 lbs. KG 102A: 4.3 lbs. (1.95 kg) KMT 112: 0.3 lbs. (150 g) KA 51B: 0.2 lbs. (0.09 kg) Power Required: 13.75 VDC (15.8 max.; 11.0 min.), 3.23 amps or 27.5 VDC (31.6 max.; 22.0 min.), 1.73 amps

Bendix/King KCS-55A HSI System (Recon.) $9,495.00 KCS0055A-00 CALL FOR CURRENT PRICE The remote-mounted KCS 55A Compass System is an affordable automatic slaving compass system, automatically displaying precise aircraft magnetic heading without manual setting. With remote electric gyro, the KCS 55A system includes a KI 525A-00 HSI, KG 102A Directional Gyro, KMT 112 Magnetic Slaving Transmitter, and a KA 51 Slaving Control Compensator unit. Display elements include: Slaved gyro magnetic heading Selected heading Selected VOR/GPS/RNAV or LOC course GPS/RNAV/VOR/Localizer deviation TO/FROM, GPS/RNAV or VOR indicator Glideslope deviation Weight: KI 825: 3.00 lbs. KG 102A: 4.3 lbs. (1.95 kg) KMT 112: 0.3 lbs. (150 g) KA 51B: 0.2 lbs. (0.09 kg) Power Required: 13.75 VDC (15.8 max.; 11.0 min.), 3.23 amps or 27.5 VDC (31.6 max.; 22.0 min.), 1.73 amps

Bendix/King KI-825 Electronic HSI $14,224.00 066-01179-0103 The KI 825 Electronic HSI (EHSI) has traditional heading and navigation features but adds mapping and an optional traffic display. The easy-to-use, high-resolution, razor-sharp, sunlight- readable, display allows you to configure the presentation to show only what's needed for the phase of flight. This greatly reduces workload as only the desired data is shown making your flying easier, safer and more fun. The KI-825 interfaces with nearly all systems so it can be easily installed in most any aircraft, providing for a lower cost upgrade. Only minor wiring changes are required for a KI-525A direct replacement; the indicator for the Bendix/King KCS-55A HSI System. When interfaced with the Bendix/King IHAS, the KI- 825 is an extremely powerful situational awareness package.The KI-825 is an easy way to a Multi-Function IHAS display in your panel! APG - Eastern Avionics Intl. offers a generous Trade-In Program on your old KI-525A (KCS-55A) Indicator to make your upgrade even more affordable! Price shown does not include installation. Call us for additional pricing and promotional package information.

Sandel SN-3500 MFD/EHSI/EFIS $10,990.00 $9,995.00 On Sale! INSTALL ONLY !! With its impressive performance and features, the SN3500 raises the bar in technology. Using an advanced display technology developed for the newest generation of aircraft, the SN3500’s bright, high-contrast screen gives you incredible readability in any lighting. In fact, incorporating a true side-to-side, 180° readability that current LCD screens can’t match, the SN3500 goes even further, providing full 180° viewing from top to bottom as well. With its patented LCD projection system, the SN3500 even accommodates polarizing sunglasses without information loss, while its brightness, sharpness and contrast make it one of the most sunlight-readable systems available. As impressive as the baseline SN3500 unit is, the SN3500 system offers even greater capability, through its expandable Input/Output. Enabling the system to work with almost every aircraft type and configuration, this built-in module supports both analog and digital avionics systems, saving on installation time and cost, and ensuring that all your navigation sensors are properly utilized. Moreover, a smart I/O also helps your SN3500 add new functions. With a software upgrade option from APG-Eastern Avionics, you can add traffic displays for TCAS, TCAD and TAS, with targets overlaid on your flight plan, and datalink weather information. Whatever your needs, there’s an SN3500 configuration that’s ideally suited to your aircraft. There’s even a ruggedized version that meets MIL-SPEC vibration resistance standards, making it ideal for helicopter operations. With more than 4,000 compact EHSI systems in service, Sandel knows something about integrated navigation displays. When it comes to providing turbineclass capability in a drop-in, 3-ATI system, you’d expect nothing less than a revolutionary solution from Sandel. The SN3500 Electronic HSI in addition to offering advanced navigation capabilities and a bright, ultra-wide-angle, light-bending display, it also gives you a full range of safety functions. Incorporating the equivalent of a four-inch screen in a three-inch instrument, the SN3500 improves situational awareness by presenting Compass, Map, Flight Plan and RMI data in a bright, crisp, easy-to-read format. FAA-certified as a primary flight display, the SN3500 can even show overlaid Stormscope® weather and traffic information from TCAS, TCAD and TAS receivers, maximizing situational awareness. Key Features Include... • Sharp, sunlight-readable display with a full 180-degree left-to-right and up-down viewing angle • Bright, nine-square-inch screen comparable to many four-inch EFIS displays • Full-color moving map supporting GPS-supplied waypoints, heading, bearing pointers for VOR and ADF, DME display and marker beacons • Upgradeable system combines navigation with such safety options as traffic, Stormscope and datalink weather • One-touch toggle between 360-degree compass and 70-degree ARC view • HDG and CRS sync functions automatically set the heading bug directly to your current heading, or the course pointer to a VOR station • Auto-slew function simplifies waypoint sequencing and Direct-To GPS navigation, allowing you to fly an entire GPS flight plan, hands-free Selected Features • Internal Jeppesen NavDataTM database supplements IFR flight plan data and approach waypoints derived from your GPS receiver’s IFR-approved database • Graphical bearing pointers and digital bearings supplied for any selected navigation source • Dynamic data tags show fixes and waypoints • MEM feature allows you to pre-configure two separate situational views and toggle between them with a single keystroke • One-touch declutter for each display item • Approved for use as a primary heading and Nav display • Ideal for light turbine, high-performance piston and rotary-wing aircraft. Specifications* Weight SN3500: 3.0 lbs Bracket & Connectors 0.5 lbs Dimensions 3.165” (8.04 cm) H x 3.165” (8.04 cm) W x 9.80” (24.89 cm) D Power Requirements 22-33 VDC @ 3.2A max (35W) 27.5 VDC @ 1.5A nominal Cooling Requirements Internal fan requiring ambient air at fan input Mounting Standard 3-ATI panel cutout with clamp and Positronic® connectors. Requires 10.65” depth from surface of panel Operating Environment -20° C. to +70° C. +55,000 ft. altitude (max.) Certification Basis TSO-C113, “Airborne Multipurpose Electronic Displays” Interfaces Heading: Bi-phase stepper (Mid-Continent 4305 & KG102) XYZ synchro (ARINC 407) ARINC 429 Flux Gate: Standard 400-Hz XYZ 3-wire interface with external excitation NAV: Analog and ARINC 429 DME: 2 King serial or ARINC 568 digital (e.g. KN62/64, KN63) 1 Analog DME input (40 mV/nm) ADF: SIN/COS, Synchro and ARINC 429 GPS: ARINC 429, RS 232 and RS 422 Composite NAV: 2 ARINC 0.5V inputs, Internal NAV Converter Marker Beacons: 3 discrete inputs Switch/Annunciators: Discrete and ARINC 429 Options: Traffic, ARINC 429 Datalink Weather, RS232

Sandel SN-4500 MFD/EHSI/EFIS $20,950.00 $17,990.00 On Sale! INSTALL ONLY!! With the pace of technology evolving faster than ever before, Sandel Avionics offers the convenience and flexibility of modular avionics, with the new SN4500 4X4 inch ESHI. Similar to the advanced displays found in the newest generation of aircraft, the SN4500 is the ideal replacement for aging electromechanical HSIs, to give your cockpit a state-of-the-art technology update. Featuring Sandel's patented bright, 360-degree readable (180 degrees in both horizontal and vertical axes) display, the SN4500 boasts a long-life backlight and unequaled sunlight visibility. It also incorporates Sandel's Smart I/OTM, which automatically accepts input from analog and digital aircraft systems to streamline installation and gives your aircraft an impressive infusion of display technology at a very attractive price. Drawing from our experience with nearly 6,000 displays in service, Sandel designed the SN4500 to do what no other current display system can: Replace your old HSI with an advanced, self-contained module. Enabling you to maintain your panel's integrity, this concept gives you the option of continuing to use avionics that are still serviceable, while adding a new EHSI that makes your aircraft safer, more functional and easier to fly. And by saving on both acquisition and installation costs, the SN4500 4X4 EHSI is a cost-effective way to enhance both the operational and the residual value of your aircraft or fleet. Designed for turbine-powered fixed-wing aircraft and helicopters with its intuitive interface and oversized display, the SN4500 4X4 EHSI improves situational awareness by presenting Compass, Map, Flight Plan and safety systemsdata in a bright, crisp format. FAA-certified as a primary navigation display, the SN4500 can even present overlaid returns from your onboard weather radar system, along with traffic information from TCAS, TCAD and TAS receivers, to maximize situational awareness. And with a color display unmatched for brightness, clarity and wide-angle readability, you'll find the SN4500 gives your cockpit a whole new look-while making it a lot easier on your eyes. As eye-catching as the SN4500's display is, its expandable Smart I/O (Input/Output) may be equally impressive. Enabling the system to work in almost any aircraft type and configuration, this built-in capability supports both analog and digital avionics systems, saving on installation time and cost, and ensuring that all your navigation and safety sensors are properly utilized. Moreover, our Smart I/O also helps your system add newfunctions, by interfacing seamlessly with additional Sandel modular systems, and by enabling software upgrades as we add more capabilities in the future. Features Include: Sharp, sunlight-readable display with a full 180- degree left-to-right/up-down viewing angle. Full-color moving map supporting GPS or FMS supplied waypoints, heading, bearing pointers for VOR and ADF, DME display and marker beacons. Upgradeable system combines navigation with traffic and weather radar information. Internal Jeppesen NavDataTM database supplements IFR flight plan data and approach waypoints derived from your GPS receiver's IFR approved database. One-touch toggle between 360-degree compass and 70-degree ARC view. HDG and CRS sync functions automatically set the heading bug directly to your current heading, or the course pointer to a VOR station. Graphical bearing pointers and digital bearings supplied for any selected navigation source. Auto-slew function simplifies waypoint sequencing and Direct-To GPS navigation, allowing you to fly an entire GPS flight plan, hands-free. One-touch declutter for each display item. FAA Approval for use as a primary navigation display. SN4500 4x4 Specifications: Weight SN4500: 3.75 lbs Bracket & Connectors 0.5 lbs Dimensions Length: 10.215 in (9.890 in. from rear of bezel) Body: 3.970 in. x 3.970 in. Bezel: 4.060 in. x 4.060 in. Power Requirements 22-33 VDC @ 3.2A max (35W) 27.5 VDC @ 1.5A nominal Cooling Requirements Internal fan requiring ambient air at fan input Mounting Standard 4-ATI panel cutout with clamp and Positronic(r) connectors. Requires 10.65" depth from surface of panel Operating Environment -20° C. to +70° C. +55,000 ft. altitude (max.) Certification Basis TSO-C113, "Airborne Multipurpose Electronic Displays" Interfaces Heading: Bi-phase stepper (Mid-Continent 4305 & KG102) XYZ synchro (ARINC 407) ARINC 429 Flux Gate: 400-Hz XYZ 3-wire interface with external excitation NAV: Analog and ARINC 429 DME: 2 King serial or ARINC 568 digital (e.g. DME40) 1 Analog DME input (40 mV/nm) ADF: SIN/COS, Synchro and ARINC 429 GPS: ARINC 429, RS 232 and RS 422 Composite NAV: 2 ARINC 0.5V inputs, Internal NAV Converter Marker Beacons: 3 discrete inputs Switch/Annunciators: Discrete and ARINC 429 Lightning Detection: WX-500 Stormscope Options: Traffic, weather datalink and weather radar.

Mid-Continent LIFESAVER 4300 Electric Horizon with Internal Battery Option $3,989.00 4300-411 The Mid-Continent Instruments 4300 Electric Horizon makes the perfect primary or standby IFR artificial horizon in any fixed-wing or rotary wing aircraft. It operates at any voltage from 10-32Vdc and its 7500hr. MTBF is more than twice that of most electric gyros. We can provide custom versions to match any existing instrument/EFIS displays. The optional self-contained battery backup is strongly recommended. It supplies up to one hour of operation in the event of an aircraft power failure. Features include: built-in annunciation, internal emergency lighting, Single connector installation for primary and optional standby battery models, Anti-reflective glass enhances visibility and reduces fatigue, Field replaceable lighting, FAA TSO-C4c. 1yr. warranty. SPECIFICATIONS: MTBF: 7,500 hours. High-stability tungsten rotor operates at lower rotational speed, extending bearing life. Certification: FAA TSO-C4c RTCA/DO-160D. Power Input: 10-32 VDC: 1400 mA start, 600 mA max. running at 14 VDC input. 700 mA start, 300 mA max. running at 28 VDC input. Battery: Rechargeable, sealed lead-acid cells. Life = 3 years in average aircraft environment. Runtime = 60 minutes minimum, when fully charged and properly maintained. Annunciators: Push to engage annunciator. STBY PWR – standby power mode. TEST – battery test. Lighting: 5, 14, or 28 VDC; field-replaceable tray wired through main connector. Glass: Special HEA anti-reflective coating. Weight: 2.7 lbs. or 3.7 lbs. with battery option. Length: 6.6 inches, 8.6 inches with battery option. Mounting: Rear mount in standard 3 1/8” round panel cutout. Temperature Range: -30ºC to +50ºC, -22ºF to +122ºF. OPTIONS (please specify) Lighting: 5, 14, or 28 VDC. Lighting Color: White, Blue/White, Red or NVIS Green. Panel Tilt: Aircraft specific - Specify exact tilt between 0º to 20º. Dial: Fixed or rotating roll dial configurations, traditional or delta wing symbolic airplane. Knob Cover: Restricts reference airplane adjustment. Emergency Battery: One hour run time; automatic charging system. Remote mountable with avialable kit.. Inclinometer: Front-mounted, ball-type slip indicator. Mounting: Front mount available with ARINC style adapter plate.

Bendix/King KCS-55A-01 HSI System (Recon) $9,995.00 KCS0055A-01 CALL FOR CURRENT PRICE The remote-mounted KCS 55A Compass System is an affordable automatic slaving compass system, automatically displaying precise aircraft magnetic heading without manual setting. With remote electric gyro, the KCS 55A system includes a KI 525A-01 Bootstrapped HSI, KG 102A Directional Gyro, KMT 112 Magnetic Slaving Transmitter, and a KA 51 Slaving Control Compensator unit. Display elements include: Slaved gyro magnetic heading Selected heading Selected VOR/GPS/RNAV or LOC course GPS/RNAV/VOR/Localizer deviation TO/FROM, GPS/RNAV or VOR indicator Glideslope deviation Weight: KI 825: 3.00 lbs. KG 102A: 4.3 lbs. (1.95 kg) KMT 112: 0.3 lbs. (150 g) KA 51B: 0.2 lbs. (0.09 kg) Power Required: 13.75 VDC (15.8 max.; 11.0 min.), 3.23 amps or 27.5 VDC (31.6 max.; 22.0 min.), 1.73 amps

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