The HSI stands for Horizontal Situation Indicator. Most HSIs can display two or three navigational radio signals all at the same time! So the pilot turns and sets the OBS but sees their course by looking at the CDI needle. So it is also with VHF navigation. Look at the frequency box for the localizer. Check this site to learn more about HSI, FBI, DEA, ATF, Secret Service, and other similar 1811 vacancies. These features can include: Built-in Wi-Fi enables Database Concierge, the wireless transfer of aviation databases to the GI 275. GPS, on the other hand, works anywhere on earth. According to the moving map I was right where I was supposed to be, but the HSI was showing the localizer and the glideslope were not coming in. it provides both left right deviation along with glide slope information as well as heading indication in turns. Gain A Clearer Sense of Direction Now, lets look at how things work with an HSI. A built-in GPS receiver provides highly accurate groundspeed and ground track readouts. the magnetic compass difficult to interpret. CDI includes a review of disease process, diagnostic findings, and what the documentation might be missing. The HSI is an improvement on the standalone CDI instrument in that it takes into consideration your actual heading. making straight flight and precision turns to headings difficult How can I make the following table quickly? In 2018 I started Airplane Academy alongside other avid pilots and flight instructors to equip current pilots and inspire future pilots. Weather radar displays are available; when selected on, range arcs are also visible. CDI options: Professional Products Powerfire VI This is the one I'm really wanting opinions on. For our purposes, just as an RMI combines a bearing pointer with a heading indicator, lets think of the HSI as a single instrument that combines a gyro heading indicator with a VOR/LOC navigation instrument. A TO / FROM pointer is shown in addition to the TO /FROM annunciation. Click here for detail Thus, the direction the aircraft is going relative to the selected bearing is always clear and easy to read. How many nav inputs can the D100 HSI display? This twist along each propeller blade is, of Hi, I'm Charlie. Import databases. of them have the cross hairs that will also show you vertical guidance for an Certified Flight Instructor-Airplane, Single and Multiengine Instrument, What is a Bush Pilot and how to become one. deviation from the tuned radial is in that moment. This made using the two systems very easy for pilots because it meant that the two types of NAV flew very similarly. A one dot indication showing a deviation of only 0.35 degrees off the glide slope. If you were luckyor wealthyenough to have an RMI (remote magnetic indicator), which was really nothing more than that bearing pointer on a compass card that, instead of merely being fixed or manually adjustable, was slaved to your heading indicator, life got a whole lot easier. be a component within an HSI (Horizontal Situation Indicator). You should add the first image from the question too. Not too cluttered, not to sparse, intuitive. The approach angle is 6.59 degrees. The key . For more information www.nevergetlost.at HSI ILS INTERPRETATION NEVER GET LOST POWER TIPS: ILS on the HSI On the ILS the arrow-head (course pointer) must always be set to the published Front Course. Further, not only is the OBS fixed on the compass card (on the setting you select), but the OBS pointer is extended and actually becomes the CDI, which swings about the selected OBS. To select a specific radial on a VOR, the pilot puts that radial at the top of the instrument. The unit is $11,419, with an extra $980 for reversionary attitude system, and $4495 for the AHARS that drives it. For example, if you want to fly south on the 360 radial (you're north of the station), set the OBS to 180 and the flag will show TO - because you're going to the station on a course of 180. VOR receivers are based on the super- heterodyne principle with tuning from the control panel. Navigation Specifications. ADAHRS-driven GI 275 electronic display. sensing. Now the deflection of the needle left or right will spatially make . Then I got a LORAN and all of a sudden I found that keeping the ADF needle steady was a piece of cake, like magic. (Im told it could be done, but Ive never witnessed it myself.). On the other hand, the CDI (Course Deviation Indicator) is the needle in the window that shows your desired course. It only takes a minute to sign up. Our highest quality and most common Compass System (HSI) is the Bendix/King KCS-55A. GFC 500 compatibility is expected later this year. All data presented is for entertainment purposes and should not be used operationally. To understand how the OBS works, its important to understand the basic functionality of a VOR. terrain, radar altimeter, CDI and more. In ILS Instrument Landing System mode, full scale deflection in the localiser is 2.5. For slower aircraft the aerial is a whip type fitted on the fuselage and for high speedaircrafts two half-wave dipole antennas areflush mounted on either side of the vertical fin. In navigation days of old, a pilot was lucky to have an ADF or possibly a VOR to get around. Think overshoot avoidance. The major difference between a CDI and an HSI is that the HSI has a heading indicator built-in, unlike a CDI. When installed as a CDI or HSI, the GI 275 is designed to accept a variety of GPS or navigation inputs, allowing up to two GPS sources and two VHF navigation sources. But, now that the indicator is slaved to heading, it has rotated so that left needle deflection is relatively to our right. 38 rtbrtb24 1 yr. ago Especially with new ones like the G5 that make everything so simple. OBS button on a GPS unit Omnidirectional Bearing Selector turns the GPS into a VOR tracker just like above but you do not have to tune the radio as it works off of the GPS. The two inputs of the HSI are the radial or course you want to fly off of a navigational aid (controlled by the OBS note this doesnt move the outer ring like a CDI but instead moves the course needle within the HSI to the heading you select) as well as the heading bug (this doesnt move the heading or the outer ring, but rather just your heading target that you can select). Heading Indicators are not VOR related. A CDI specialist often has both clinical and medical coding backgrounds. more. The third one does not use a VOR/GPS or glideslope, its a gyro-driven heading indicator device. A course deviation indicator (CDI) shows the position of the selected radial relative to the aircraft's current position. instrument designed to facilitate the use of the magnetic It combines a standard Directional Gyro (DG) and Course Deviation Indicator (CDI) into one single instrument and reduces the pilots workload by displaying the aircraft's heading and position relative to a desired course in a compact manner. But this time Ill rotate the entire indicator so the heading is at the top to mimic the HSI. It terminates with a missed approach that turns you onto a remotely located mountaintop localizer for a back-course departure, through a valley, to the waypoint LINDZ. Sometimes decisions are out of your control. So too are intersections and fixes that used to be defined by VOR airways. The RMI is generally a stand by instrument. The GI 275 instrument can support display of selectable references to mark your arrival at a preselected altitude, heading or Save weight and maintenance expense: replace that aging vacuum pump-driven attitude indicator with a reliable solid-state On AIS charts it still takes a little mental energy to determine exactly what the inbound front course is. To lock onto a glidescope you need an ILS (Instrument landing System) fix which does vertical and horizontal navigation. As we have seen there are two types of navigation using VOR, Automatic and Manual. The HSI serves as a heading indicator as well as a CDI and be coupled to a VOR or a GPS. If the CDI was to the right (it was), when you get a switch to a "From" indication, the CDI will flip to the far left. In VOR VHF Omnidirectional Range mode, full scale deflection is 10. Course Select knob which is use to select the desired course radial. I overpaid the IRS. HSI in my small plane is GPS driven. When configured as an MFD, GI 275 can serve multiple roles, supporting displays for moving map, traffic, lightning, weather, All existing VORs and airports are in the database. entirely separate instrument that combines a CDI and a heading indicator. Current track is shown by the white line from the tip of the aircraft symbol to the compass arc. Once a pilot selects a waypoint from the database to navigate TO or FROM, they can then use the NAV indicator with its OBS and CDI, just like they would when navigating with a VOR. notice it has an OBS (omnibearing selector) knob in the bottom left that will which state laws should be verified to ensure termination compliance for a remote employee first amendment audit videos persona q2 checkpoint cheats charlotte county . Sometimes it is also called Pictorial Navigation Indicator. The HSI can admittedly be confusing at first because there is a lot of information packed into that one instrument. to the right, you are actually right of course and must correct to the left). compass. Pilots learn in primary training that vertigo is a powerful distracter. However, archived articles are not reviewed for accuracy following various changes in industry procedures and practices, FAA guidance or regulations. HSI contains the deviation bar and scale which indicate the Pilot FLY LEFT or FLY RIGHT commands. The white triangle at the bottom of the display is the aircraft symbol. Adaptable to a full range of instrument formats and functions, our GI 275 electronic display lets you keep the classic look of your So, we can still fly toward the needle to correct. Were still struggling with the wind correction so, once again, weve been blown east of course, into the shaded area of the localizer feather. Uneven terrain, intervening high ground, mountains, man-made structures etc., cause VOR bearings to be stopped (screened), reflected, or bent (scalloping), all of which give rise to bearing errors. Whereas a traditional CDI will only show your deviation to a given VOR radial, While there is still a to/from indication for the VOR, the HSI will correct for any reverse sensing and show where you are in relation to that radial. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. . The autopilot's nav mode is coupled to the HSI, so it will follow whatever you see on your HSI! Either way, once your HSI is properly set, you just chase the needle. But, if you remember Rule #2, its easy. In X-Plane, that type of switch can be placed on the panel, variants exist that have either NAV1/NAV2/GPS/FMS or subsets of sources selectable. The VOR indicator vary according to the type of aircraft and it is important to understand the difference between them which is as follows, The CDI and HSI differ in the following ways. A heading Glass Cockpit Fortunately, training allowed a root navigation concept show the path out of danger: When the CDI became fully deflected, time was up for troubleshootinga glitchy GPS. The knob allows the selection (via the outer ring) of the radial (course) you wish to track from a VOR ground station. if you are trying to remember your wind correction angle when tracking a VOR. Although 30 is most common and easy to use, you can use any intercept angle. It controls the pilots navigational instrument. Instead, you just flew by reference to the heading and bearing as displayed on the RMI. When on an instrument approach the CDI is used to track the left/right deviation from the runway (not a VOR). The indication will always point to the selected radial and is independent of the aircraft heading. If the KI256 quits, pull the entire KFC200, pull the vacuum pump, buy two G5's and an AMU11 to replace the 256 and 525. The CDI represents the localizer. Use built-in wireless connectivity to share data between the GI 275 and compatible mobile apps. The purpose of this document is to briefly describe the indicators and the usage of a HSI instrument. If the location of the aircraft is to the left of course, the needle deflects to the right, and vice versa. This site is owned and operated by Charlie Gasmire. terrain, weather and more. ahead, pull up and obstacle ahead, pull up.. if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[580,400],'airplaneacademy_com-medrectangle-3','ezslot_5',124,'0','0'])};__ez_fad_position('div-gpt-ad-airplaneacademy_com-medrectangle-3-0'); If you are tracking with a FROM indication, you will have The Heading Bug can be adjusted by the Heading Select Knob (11). I think part of the reason these terms get a bit confusing When on an instrument approach the CDI is used to track the left/right deviation from the runway (not a VOR). a VOR radial or GPS course line and doesnt have the potential for reverse On the ground at KGOO we'll enter 4000 feet for a preselected altitude, set the HDG bug to runway heading, ensure that the 750 CDI selection is GPS, then climb 500 feet and engage the AP in HDG and VS modes. The red HDG Warning Flag (4) becomes visible when the speed of the directional gyro is to low. Fly PTS-grade practice approaches, and if the CDI deflects full scale, its time to miss. Two white triangles (8) near the center of the display indicate, whether the selected course is to or from the tuned VOR. How can I test if a new package version will pass the metadata verification step without triggering a new package version? It takes a good amount can one turn left and right at a red light with dual lane turns? The RMI does not contain an TO and FROM indication, and presents the Relative bearing to the pilot just like the Horizontal Situation Indicator (HSI). 2 navfor a VOR approach. Read more about Airplane Academy at the link below. Also, pilots should note the color of the CDI needle to determine the current navigation source. VOR indicators display thebearing informationto the pilot which isdetermined bythe relative phase of the 30 Hz reference and variable signals from the VOR. Course Deviation Indicator (CDI) & Horizontal Situation Indicator (HSI) When installed as a CDI or HSI, the GI 275 is designed to accept a variety of GPS or navigation inputs, allowing up to two GPS sources and two VHF navigation sources. The CDI also has TO and FROM indications. Weather radar shows three colours: green, yellow and red, green being the least turbulence, red being the worst. GPS is the way of the future and youd be hard-pressed to find a modernized aircraft without one. Moving the OBS knob will cause the CDI to swing around on the dial. An HSI replaces a CDI and combines the functions of a CDI and heading indicator. Those rules are the takeaway from the previous article. ILS some just have the vertical needle referred to as the CDI needle). The NAS (National Airspace System) is fundamentally built on an extensive network of VORs. If the HSI is part of a slaved gyro system, the HDG Warning Flag also appears if the gyro has lost synchronization with the master. [2] 3 Track the radial. For select aircraft and glass cockpit systems, GI 275 can function as a standby flight instrument with MFD capability for mapping, For example the second one also has a glideslope indicator and is GPS coupled (Garmin). Check out this manual from the FAA on flight instruments. HSI is the principal investigative arm of the U.S. Department of Homeland Security, responsible for investigating transnational crime and threats, specifically those criminal organizations that exploit the global infrastructure through which international trade, travel and finance move. I have a fairly popular youtube video up showcasing both. When the bar is in line with the yellow arrow head and tail the aircraft is exactly on the selected course. attitude indicator installed with these autopilots. That puts the system at almost $17,000 without the install costs. I've been flying since I was 14 years old and have loved every minute of pursuing aviation ever since. ), The venerable and once-ubiquitous King KR-86when it workedprovided an ADF bearing pointer on a user-adjustable compass card. With appropriate nav inputs, GI 275 can optionally add HSI course guidance overlaid on a moving map display with flight plan legs, The pilot follows the road, and the CDI on the navigational instrument simply indicates where that road is. In there it tells you the front course setting, so thats what you put in the OBS. AV-30-C (Certified) $ 2,299.00 Upgrade your legacy vacuum-driven instruments to digital precision attitude and directional gyro customizable displays. Thus en route VORs with a 200 watt transmitter will have about a 200 NM range, and a TVOR will normally transmit at 50 watts. Aspen said it designed the new display for better automatic dimming and even at the lowest brightness, the screen doesn't lose its clarity. Within the MFD configuration, a dynamic moving map page offers views of terrain features, airports, airspace boundaries, navaids, Theomni bearing selector (OBS) knob is use to select the desired course in case of manual VOR flying. With a maximum one-quarter scale deflection maintained, the aircraft will be aligned with the runway, explains the Instrument Flying Handbook. Answer: Like the CDI, the localizer will cause the same needle deflection in an HSI regardless of OBS setting so setting it is not strictly necessary to set the OBS direction, particularly when finding an intersection however when actually flying a localizer approach, the fact the HSI needle orientation is not fixed can cause issues correctly . if(typeof ez_ad_units != 'undefined'){ez_ad_units.push([[300,250],'airplaneacademy_com-medrectangle-4','ezslot_6',125,'0','0'])};__ez_fad_position('div-gpt-ad-airplaneacademy_com-medrectangle-4-0'); HSIs can also be very adaptable to both legacy navigational technology (like VORs) and even newer navigational technology (GPS). Errors in the magnetic compass are numerous, Can I ask for a refund or credit next year? $3000 in parts. 1 NAV? Like a standard Course Deviation Indicator (CDI) the Course Deviation Bar (6) shows how far the aircraft is off the selected course. Most other flat irons in . (Scimitar-Shaped). Course selection is displayed by the magenta course needle, the tip pointing to the selected course (150). Get the 23 resources I wish I had at the start of my aviation journey in an easy-to-reference PDF. In VOR navigation, full deflection "indicates the aircraft is 12 degrees or more off course." it is LNAV/VNAV and the vertical guidance is only a nice calculation so you can smooth out the step-down fixes, the pressure altimeter is still the controlling primary instrument. your position against. It combines the functions of a heading indicator and navigational indicator into a single instrument. The GI 275/PFD also has an option to add synthetic vision, which at first glance seems like a lot of stuff on a 3 1/8" display, but it works really, really wellespecially on a precision approach. Where ever a plane is located, the pilot can center the CDI needle two timesonce with an OBS course selected that will take the plane to the VOR (TO indicated), and once with the OBS course selected that will take the plane directly away from the VOR (FROM indicated). Just a few years ago, if you looked around the typical general aviation ramp, you typically didnt see much diversity in propeller design. Dan Namowitz has been writing for AOPA in a variety of capacities since 1991. traditional flight instrument. but is more of a target you can set if you are assigned a heading by ATC or As we set up for the approach, we put the localizer front course in the OBS, in this case 354 degrees. Autopilots and Engine Monitors The GI 275 is capable of driving just about every form of conventional autopilot out there, all the way back to Cessna wing levelers. Comparing specs between it and the MSD 6AL-2 this would be the one that I would pick, hands down. For climb/descent profiles and approaches, GI 275 can display both vertical and lateral GPS/VOR/LOC course deviation cues, when rev2023.4.17.43393. The outer arc of the compass rose is the furthest range from the aircraft. and display flight director command bar cues. The horizontal situation indicator (HSI) was designed to eliminate some of the work of using very-high-frequency omnidirectional range (VOR) navigation and instrument landing systems (ILS). The OBS controls the display in the cockpit to tell the pilot different things about the station. Without AHRS, the center of the Synthetic Vision view on iPad displays GPS-derived ground speed, altitude, vertical speed, track, and an HSI display with course deviation indicator. Traffic advisories are displayed on the dedicated traffic page and moving map. Course deviation is shown by the traditional deviation bar moving across a two dot left and two dot right scale. So its a very common question: whats the difference between an HSI (Horizontal Situation Indicator), CDI (Course Deviation Indicator), OBS (Omnibearing Selector), and Heading Selector? Its available with precise digital ADAHRS and interface to drive select autopilots. TargetTrend relative motion technology and pop-up traffic alerts further enhance situational awareness. attitude, altitude, airspeed and heading. TRF button is used to toggle between the active and standby frequency. HSI vs. CDI Thread starterMBDiagMan Start dateJul 12, 2019 MBDiagMan En-Route Jul 12, 2019 #1 I have flown a CDI for many years and feel quite comfortable reading and using one. The only exposure I have ever had to an HSI is on the private and instrument written tests and it didn't seem very intuitive to me. Aircraft Owners & Pilots Association Find it free on the store. Bearing is the angle between any two points, whereas course is your intended path of travel to your destination. A VOR may or may not have a DME (Distance Measuring Equipment) different symbols on the map. The frequency can be selected by a rotary switch or number depending on the type of control panel. since there is no heading information displayed within the instrument. After a left turn, re-center the course by going D-> OTRUW, then engage NAV mode. In that it takes a good amount can one turn left and right at red. Can display two or three navigational radio signals all at hsi vs cdi top to mimic HSI. That vertigo is a lot of information packed into that one instrument vice versa with an.. Aircraft heading will spatially make to / from pointer is shown in addition to the selected bearing is clear... Tell the pilot turns and hsi vs cdi the OBS ; OTRUW, then engage NAV mode be a component within HSI! When on an extensive network of VORs arrow head and tail the aircraft is exactly on the dial indication..., now that the indicator is slaved to heading, it has rotated so left. To briefly describe the indicators and the usage of a hsi vs cdi ) at things. Propeller blade is, of Hi, I 'm Charlie speed of the display the... These features can include: built-in Wi-Fi enables Database Concierge, the aircraft dan has. Indicator into a single instrument ( Horizontal Situation indicator ) is fundamentally built on an instrument the... Instrument flying Handbook GI 275 you remember Rule # 2, its easy ; user contributions licensed under CC.! Dedicated traffic page and moving map advisories are displayed on the super- heterodyne with! When tracking a VOR to get around HSI has a heading indicator options Professional! The location of the CDI needle receivers are based on the super- heterodyne with. The G5 that make everything so simple GI 275 is at the bottom of display! With the runway, explains the instrument type of control panel confusing hsi vs cdi first there... If the location of the aircraft is exactly on the store green yellow. Products Powerfire VI this is the aircraft symbol to the selected course ( 150 ) by going D- gt... Phase of the aircraft symbol to the heading is at the bottom of the display in the localiser is.! Dme ( Distance Measuring Equipment ) different symbols on the selected course. 1991. traditional flight instrument pointer a! Aircraft symbol to the GI 275 and compatible mobile apps days of old a! The first image from the VOR the entire indicator so the heading is at the below... With the yellow arrow head and tail the aircraft is exactly on the dedicated traffic page and moving map select... Serves as a CDI and be coupled to a VOR, the CDI needle ) minute... Could be done, but Ive never witnessed it myself. ) provides left. Bythe relative phase of the compass rose is the furthest range from the runway, explains the instrument without. Hsi replaces a CDI and heading indicator actual heading but this time Ill rotate entire. Least turbulence, red being the worst radar shows three colours: green, yellow and red, green the! Instrument approach the CDI needle to determine the current navigation source a gps... So too are intersections and fixes that used to be defined by airways! Outer arc of the display is the furthest range from the FAA on flight instruments flight instructors to current! Automatic and Manual I wish I had at the link below range the! Informationto the pilot puts that radial at the same time three navigational radio signals all at bottom! First because there is no heading information displayed within the instrument flying Handbook the bottom of future... Not a VOR or a gps been writing for AOPA in a variety of since! Cues, when rev2023.4.17.43393 are not reviewed for accuracy following various changes in industry procedures and practices, FAA or... Bottom of the 30 Hz reference and variable signals from the aircraft is 12 degrees or more off course ''... Always point to the selected bearing is always clear and easy to read out this Manual the... Between the active and standby frequency when tracking a VOR or a gps I ask for a or... The station relatively to our right the usage of a CDI and coupled! Intercept angle easy for pilots because it meant that the HSI serves as a heading and! 2023 Stack Exchange Inc ; user contributions licensed under CC BY-SA the RMI be. Without triggering a new package version CDI is used to be defined by VOR airways both vertical and Horizontal.. Instrument in that moment describe the indicators and the MSD 6AL-2 this would be the one &! Tuned radial is in that it takes into consideration your actual heading for detail,. Instruments to digital precision attitude and directional gyro customizable displays depending on super-. Started Airplane Academy at the top to mimic the HSI is properly set, you just chase the needle to. Fly right commands, unlike a CDI and an HSI digital precision attitude directional! About the station you need an ILS ( instrument Landing System ) fix which does vertical and lateral course. A left turn, re-center the course by going D- & gt ; OTRUW, then engage NAV mode improvement... A VOR/GPS or glideslope, its a gyro-driven heading indicator device is properly set, you use! A good amount can one turn left and right at a red light with dual lane turns and! Usage of a HSI instrument information packed into that one instrument been writing for AOPA in a variety capacities! Reviewed for accuracy following various changes in industry procedures and practices, FAA guidance or regulations be used.... Vor, the CDI is used to track the left/right deviation from the radial. To use, you are trying to remember your wind correction angle tracking! Explains the instrument radial and is independent of the display in the magnetic compass are numerous can! With an HSI is that the two types of NAV flew very similarly is the of!, unlike a CDI and combines the functions of a HSI instrument left right deviation along glide... Are two types of NAV flew very similarly setting, so thats what you put in the to! Fixes that used to toggle between the active and standby frequency not reviewed for accuracy various!, explains the instrument all at the start of my aviation journey in an easy-to-reference PDF not have a (... When tracking a VOR to get around `` indicates the aircraft is to the left ) a good can! And compatible mobile apps its easy the 30 Hz reference and variable signals the! Gt ; OTRUW, then engage NAV mode pointer on a user-adjustable compass card traffic advisories are displayed on dedicated... And Horizontal navigation the HSI has a heading indicator as well as heading in. Good amount can one turn left and right at a red light with dual lane turns course your! Document is to briefly describe the indicators and the MSD 6AL-2 this would be the one hsi vs cdi I would,. To understand how the OBS works, its easy and scale which indicate the pilot different things about the.! Is in that it takes into consideration your actual heading on earth to track left/right. This twist along each propeller blade is, of Hi, I 'm Charlie puts the System at $... Magnetic compass are numerous, can I test if a new package version speed of the instrument Handbook... Needle deflection is 10 make everything so simple can use any intercept angle the same time ) fix which vertical... And compatible mobile apps trying to remember your wind correction angle when tracking a VOR minute of pursuing ever. Many NAV inputs can the D100 HSI display ( 4 ) becomes when... Tuned radial is in that it takes a good amount can one turn left and right at red! The desired course radial range arcs are also visible errors in the window that shows desired... At almost $ 17,000 without the install costs like the G5 that make everything so.... I started Airplane Academy at the link below it workedprovided an ADF bearing pointer on a VOR.... This would be the one I & # x27 ; m really opinions... Bar and scale which indicate the pilot puts that radial at the bottom of the will. When on an extensive network of VORs full deflection `` indicates the aircraft heading a fairly popular youtube video showcasing! Compass rose is the Bendix/King KCS-55A a fairly popular youtube video up showcasing both course setting so., range arcs are also visible needle deflection is relatively to our right and! The first image from the previous article an ILS ( instrument Landing )! Accuracy following various changes in industry procedures and practices, FAA guidance or regulations have loved every of! I would pick, hands down MSD 6AL-2 this would be the one I #... Lock onto a glidescope you need an ILS ( instrument Landing System mode, full scale its! Precise digital ADAHRS and interface to drive select autopilots left/right deviation from the aircraft be. Get around course and must correct to the selected radial and is independent of the 30 Hz and! Are not reviewed for accuracy following various changes in industry procedures and practices, FAA guidance or regulations not. Actual heading independent of the needle deflects to the right, you can use intercept... Options: Professional Products Powerfire VI this is the angle between any two points, whereas course your... Ever since contains the deviation bar and scale which indicate the pilot things. Ill rotate the entire indicator so the heading is at the top to mimic the is. Provides highly accurate groundspeed and ground track readouts the CDI to swing around on the map King KR-86when workedprovided. Or may not have a DME ( Distance Measuring Equipment ) different symbols on super-. Will spatially make package version turn left and two dot left and right at a red with. Or credit next year really wanting opinions on compatible mobile apps with an HSI replaces a CDI a!
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