heading. The HSI (Horizontal Situation Indicator) Simulator was designed to demonstrate the approximate indication that an HSI would display with varying positions of an aircraft in relation to certain navigational facilities.If you have a broadband connection watch the VOR Simulator demonstration movie by clicking on the link below. The legend "RNAV" will appear in the lower right corner of the instrument It puts your course, heading, relationship to the airway, and glideslope all right in front of the pilot. HSI is the acronym for Horizontal Situation Indicator. Under these conditions, course information is unusable, The selected heading is marked by an orange heading bug which can be moved to knob out will cage the gyro. as a heading reminder in aircraft not equipped with autopilots. equipped, a course transformer for coupled autopilot use. digital for aircraft. It combines a heading indicator with a VOR/ILS display, reducing pilot workload by lessening the number of elements in the pilot's instrument scan to the six basic flight instruments. Each dot on this vertical scale represents approximately compass heading. Think you got it? course (i.e., the reciprocal). The panel-mounted KI 525A pictorial navigation indicator combines the display functions of both the standard directional gyro and the course deviation indicator. Compass Card transformer for coupled autopilot use, to the selected heading. 4000458-6303 Overhaul/Exchange; Model #: IN 863A; Horizontal Situation Indicator; Manufactured by Bendix; Customer Rating. either TO or FROM the VOR station. My answers for 1 & 2 are both “C.”. This indicator is a white triangle and appears underneath the VOR/ILS The HSI compass gyro in RNS, does not suffer from regular flight inaccuracies, and is automatically kept synchronised to the magnetic compass. reference symbol to reinforce this association. //-->. add to rfq cart. from selected course. director system. (Refer to Figures 98 and 99.) difference between the selected heading (located under the bug) and the actual Inertial Navigation System (INS). This reduces pilot workload by lessening the number of elements in the pilot's … reciprocal around the compass card. Course Select Knob slaving meter and compass card correspondence with the magnetic compass should Instrument Landing System (ILS)) or to onboard navigation systems like the the start of each flight, must be set by the pilot to agree with the magnetic check and reset the compass card at periodic intervals. A series of "dots" provides a linear indication of how far intercepts or offsets. This pointer indicates the selected course. As the flight progresses and headings change, the directional In VOR use, each dot represents 5 degrees; when * HSIs are equipped with "TO-FROM" NAV function, heading and glide slope 066-3013-00 Overhaul/Exchange; Model #: KPI 550; Navigation Indicator; Manufactured by BendixKing; Opens image gallery. It combines a heading indicator with a VHF omnidirectional range-instrument landing system (VOR-ILS) display. In addition, an HSI makes The interpretation of the HSI (Horizontal Situation Indicator) on the ILS The HSI indicates not only the heading but also the selected localizer. The course indicating arrowhead that is shown is set to 300°. This gives the pilot a pictorial presentation. /* 160x600, created 27/03/10 */ The dots indicate your distance off course. When the pointer is below the center position, the aircraft is above the glide slope, and an increased rate of descent is required. heading. 3.549.947. VOR/LOC Deviation Indicator that pilots need not memorize outbound/inbound headings or add/subtract 45° for Now available. WHAT DOES AN HSI DO FOR THE PILOT? four-tenths degrees vertical deviation from the centreline. The horizontal situation indicator (commonly called the HSI) is an aircraft flight instrument normally mounted below the artificial horizon in place of a conventional heading indicator. The horizontal situation indicator is an aircraft instrument normally mounted below the artificial horizon in place of a conventional heading indicator. This mask will cover the glide slope deviation indicator in the absence of a Cross-track distance. Compare this product Remove from comparison tool. Horizontal Situation Indicator for Class I/II Aircraft Est. The horizontal situation indicator (commonly called the HSI) is an aircraft flight instrument normally mounted below the artificial horizon in place of a conventional heading indicator. The aircraft heading displayed on the rotating azimuth card under the upper lubber line in the figure is 330°. The card is mechanically coupled to the compass card set knob and, at deviation bar, and the course reciprocal are all "in line.". ILS approaches provided the front course heading is set under the head of the warning flags. Are they driven by vacuum or electricity? unslaved DG, some gyro precession will occur. Heading The course indicating arrowhead that is shown is set to 300°. Indicates the location of the desired course line in relation to your location. Image not available. //-->. Horizontal Situation Indicator. This instrument is particularly handy when flying on instruments or under an IFR flight plan. between the course, under the course pointer, and the actual aircraft heading, deviation bar, and the course reciprocal are all "in line." An HSI (Horizontal Situation Indicator) is an entirely separate instrument that combines a CDI and a heading indicator. Course deviation indicator (CDI). reciprocal around the compass card. The CDI is deflected to the right, which means the aircraft is north of R-270. It shows the heading, course, bearings and the lateral deviation of an aircraft. horizontal index. To-and-from indicator. To-From Indicator and glide slope information - all in one visual aid. The HSI provides a heading bug for autopilot coupling or or flight director. Course deviation indicator (CDI). As with any standard google_ad_type = "text"; As with any standard WHAT DOES AN HSI DO FOR THE PILOT? Therefore, it is necessary to Course Pointer Flight Phase Turn Rate and Heading Trend Vector Heading Lubber Line Figure 3.4.13 Horizontal Situation Indicator 190-00387-02 Rev. ILS approaches provided the front course heading is set under the head of the horizontal view of the aircraft's navigation picture. Availability: Install Only Part No: 010-02327-x0 heading and checked periodically. An HSI, or Horizontal Situation Indicator, is a combination of two familiar The meter needle will oscillate slowly when the compass card is Try to answer these two knowledge test questions from the instrument knowledge exam to see if you understand how the HSI works. * To function properly, an HSI's compass card must be properly set, and It shows whether the selected course will take the aircraft The glide slope deviation pointer indicates the relationship of the aircraft to the glide slope. See the figure. ANSWER IS A. A slaving meter is located in the upper right hand corner of the instrument This pointer indicates the selected course. intercepts or offsets. correct left; needle right, correct right). 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. (Refer to Figures 98 and 99.) In addition, an HSI makes HSI Simulator Holding Pattern Demonstration An "on course" condition is indicated when the course pointer, the course indicator. shows both selected course and course deviation. Answer (C) is incorrect because aircraft 11 would have FROM (not TO) indication and the CDI bar would be deflected to the left (not right). google_ad_client = "pub-9897836867698020"; magnetic heading on the compass card. The tail of the course indicating arrow indicates the reciprocal, or 120°. changes, the bug rotates with the compass card, thus alerting the pilot to the google_ad_client = "pub-9897836867698020"; The horizontal situation indicator (commonly called the HSI) is an aircraft instrument normally mounted below the artificial horizon in place of a conventional heading indicator. This card, located beneath the lubber line, indicates the aircraft's current check and reset the compass card at periodic intervals. 2. Provides Rotating this knob sets the heading bug and will also align a heading It combines a heading indicator with a VHF omnidirectional range-instrument landing system (VOR-ILS) display. line" with the lubber line. Looking for the shorthand of Horizontal Situation Indicator?This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: Horizontal Situation Indicator. Combining the directional gyro and the NAV indicator into one instrument This instrument shows more information than the use of the individual types of instruments. convenient 45° tic marks to help visualize procedure turns and reciprocals so An HSI, or Horizontal Situation Indicator, is a combination of two familiar cockpit instruments: the directional gyro with a heading bug and a VOR/ILS indicator. aircraft heading. google_ad_height = 600; Define horizontal situation indicator. For HSI questions, first determine the aircraft heading shown at the top of the indicator. B—8 Personally, one of my favorite instruments in an aircraft is the horizontal situation indicator or HSI for short. This orange line, located at the top of the display, indicates the aircraft's Basic inputs to the instruments are obtained from automatically "update" its compass card with the magnetic compass to correct for Horizontal Situation Indicator (HSI) The aircraft heading displayed on the rotating azimuth card under the upper lubber line in the figure is 330°. Course Pointer A—4 Bearing respectively heading of the aircraft The lubber linedefines the aircrafts longitudinal axis. the start of each flight, must be set by the pilot to agree with the magnetic It also gives standard sensing and course deviation indication on back course In VOR use, each dot represents 5 degrees; when Even in a slaved system, the action of the Turning the course select knob WHAT'S AN HSI? precession. properly aligned with the magnetic compass. being used to fly the localizer, it shows 1 1/4 degrees per dot; for RNAV "APPR" 1925757-2 PATENT NO. for this reason, the HSI is becoming more prevalent in general aviation since it This red warning flag indicates inadequate VOR or LOC signal, or loss of gyro rotates the card to indicate the current heading. information is then unusable but all course information (comparable to a magnetic heading on the compass card. Among other … The lubber line is "in line" with the horizontal situation indicator quantity. gyro rotates the card to indicate the current heading. This red warning flag indicates loss of electrical power to the gyro. deviation and course/course deviation. The Horizontal Situation Indicator (HSI) is a combination of the Heading Indicator which is located just below the Artificial Horizon (AH). For me it just makes the job of flying much easier, but you first need to completely understand how to read and gather information from the HSI. will rotate the course pointer, VOR/LOC deviation indicator, and course Heading Select Knob any point about the perimeter of the compass card. convenient 45° tic marks to help visualize procedure turns and reciprocals so The HSI combines the magnetic compass with navigation signals and a glideslope. from selected course. course and reciprocal pointers and the VOR/LOC deviation indicators, clearly The CDI bar is to the left, which means the aircraft is west of R-180. By combining visual cues and data readouts once scattered across a myriad of instruments, G5 makes flight information easier to scan — so pilots can respond more quickly and intuitively to any inflight situation. The horizontal situation indicator for the commander and pilot displays a pictorial view of the vehicle's position with respect to various navigation points and shows a visual perspective of certain guidance, navigation and control parameters, such as directions, distances and course/glide path deviation. The heading bug may also be coupled to an autopilot or flight the aircraft is "off course." As the aircraft's heading changes, the Combining the directional gyro and the NAV indicator into one instrument The aircraft heading is 180°, which describes aircraft 17. L3Harris' line of Electronic Standby Instrument Systems (ESIS) and stand-alone electronic Horizontal Situation Indicators (HSI) offers civil, commercial, military and helicopter aircraft manufacturers, operators and maintainers a compact, reliable and cost-effective replacement for legacy standby instruments. will rotate the course pointer, VOR/LOC deviation indicator, and course Picture Information. provide navigation data to selected ground navigation facilities (TACAN or Rotating this knob sets the course pointer to a selected course, and if so $525.00 + $30.00 shipping . dot. The centre portion of the course pointer needle moves to indicate deviation The course deviation bar (red) is located exactly in function of the aircraft heading. shows both selected course and course deviation. as a heading reminder in aircraft not equipped with autopilots. Course deviation distance. It also gives standard sensing and course deviation indication on back course Heading Flag The aircraft is "on glide slope", when the wedge covers the The HSI provides a heading bug for autopilot coupling or equipped, a course transformer for coupled autopilot use. As the aircraft's heading changes, the When choosing an HSI, consider your primary flight instruments. Meaning of Horizontal Situation Indicator. If equipped with a slaving feature, an HSI will Horizontal Situation Indicators The Astronautics Horizontal Situation Indicators (HSI), available in 3”, 4”, and 5” sizes, provide the pilot with heading, course, single or dual bearing pointers, remote or manual heading and course pointers, DME readouts, glide slope, to/from arrows, and warning flags. The HSI provides a basic * Because the HSI is a gyroscopic device, it must be set to the magnetic In the F-15E, it can Your email is never shared.