Gyroscopic Heading Indicator

Item Name Code (INC) 38917

Navigational Instruments
Federal Supply Class: FSC 6605
NATO Supply Classification Class: NSC 6605
Instruments and Laboratory Equipment
Federal Supply Group: FSG 66
NATO Supply Classification Group: NSG 66
Item Hits: 149
INC 38917 Gyroscopic Heading Indicator
INC 38917 Gyroscopic Heading Indicator

An instrument designed to display the degree of variation, or the angular value between true or magnetic north and the longitudinal axis of the aircraft, ship or ground vehicle.

Additional Information for Gyroscopic Heading Indicator Additional Information for Gyroscopic Heading Indicator

A Gyroscopic Heading Indicator, also known as a Directional Gyro or DG, is an instrument used in aircraft to display the aircraft's heading. It is a type of gyroscopic instrument that uses the principle of rigidity in space to maintain a constant heading reference.

The Gyroscopic Heading Indicator consists of a gyroscope that is mounted in a gimbal system. The gyroscope is spun up to a high speed using a motor or air-driven system. Once the gyroscope is spinning, it maintains its orientation in space, regardless of the aircraft's movements.

The gimbal system allows the gyroscope to remain level with the horizon, while the aircraft may be banking or pitching. This allows the Gyroscopic Heading Indicator to provide an accurate indication of the aircraft's heading.

The heading information is displayed on the instrument panel using a compass card or a digital display. The compass card is marked with degrees, ranging from 0 to 360, representing the aircraft's heading. The card rotates as the aircraft changes heading, providing a visual reference for the pilot.

Gyroscopic Heading Indicators are commonly used in both small and large aircraft as a primary means of determining heading. They are reliable and accurate instruments, providing pilots with essential information for navigation and maintaining aircraft control.

It is important to note that Gyroscopic Heading Indicators require periodic calibration and maintenance to ensure their accuracy. Pilots should also be aware of the limitations of gyroscopic instruments, as they can be affected by factors such as precession and drift over time.

Overall, the Gyroscopic Heading Indicator is a crucial instrument for pilots, providing them with reliable heading information during flight.

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NATO Stock Numbers named Gyroscopic Heading Indicator NATO Stock Numbers with Item Name 38917 Gyroscopic Heading Indicator Page 1 of 1
505-0031-933
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MILI5741BTYPEC5C
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0000-7170-01
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414000-05-01
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1810915-3
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DTR 600
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1885901
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PC109E0031-1
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1884711-1
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0311056-6
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674174
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Z057479
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649742
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401-045500-0101
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1U262-001-37
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M9071-19-1
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278122
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278120
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1U262-001-11
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5265221-001
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907084116-009
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1885901-2
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C-2A
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2588156-1
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695 6 11000
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MD222-406-NVIS
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429300-200
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504-0035-909
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066-50029-1161
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84300-1
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MILI5741
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8521846-12
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125400-5
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50-384204
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167498-05-03
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704A47-3000-12
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PS50126-5
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1979320-1
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ID-2529/A
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501-1652-01
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414000-02-02
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M3540-4
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370-112860-1
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23-573
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125400
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792-6357-001
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504-0035-901
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550 829
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429300-201
RNCC: 3 | RNVC: 2 | MEDALS: Y | DAC: B
501-1854-1601
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649742
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T95310
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501-1515-01
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AN5735-1
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21C1469-018
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350633
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T95090
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522-2638-001
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414000-04-01
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21C1469-017
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622-3594-016
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071-1284-35
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AN5735-2A
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066-50025-0201
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704A47-150-012
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1V262-001-18
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95090
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289-1E
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674090
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1784460-655
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JH5500
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MILI5741
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AN5735-1A
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2105DB6
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T95090-1
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2107SDA6A
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AN5735-1A
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JH5500B
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646050
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H321EGM
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JH5500
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0A614.40-02-00-00-000
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1784460-355-2
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NO PRIMARY REF14-395-1888
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897430
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F300 0T 013 0076
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MAT677-0099X+EEM9606
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906-0-2107GRADUATI0N906-0-21-19
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85-691-8957
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6605AA8022910
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NO PRIMARY REF14-205-1168
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133C555HP005/D2865
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NO PRIMARY REF14-205-1170
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0001009053
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AGD-1 458 MKS 2.SER
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16238869
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87252193
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MRF10
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830-1
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87252029M4
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87252107-1
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E4183
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45835301
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MPN200
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656-24241-03
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131
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87252165-2
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85-693-8974
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906-2-21-19PLA ET B01
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516377
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ID156A00
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704A47-330-050
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MTI-G-28A53G35
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704A47-330-067
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87252231V06
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38222-150-01
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P60059A
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87252107-11
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A19119
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565-1053-003
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38222-220
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MTI-68A53G35
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14148
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KW991-HR
RNCC: 3 | RNVC: 2 | DAC: 4
NO PRIMARY REF14-388-7317
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830-1-10DEGRESNORD
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267272-0100
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2051BF
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38222-370
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21393498
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87252107
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61451-021-1
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AGD-1 458M
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MTI-28A53G35
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19595-1
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830-1-25DEGRESSUD
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5F8-5HON1-4
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31420
RNCC: 5 | RNVC: 9 | DAC: 1