GH-4001 ESIS Electronic Standby Instrument System

The next-generation standby system for military aircraft

The GH-4001 Electronic Standby Instrument System (ESIS) represents the next generation of standby technology for demanding high-performance military aircraft. The solid-state GH-4001 is a direct replacement to the popular GH-3001 model, utilizing the same wiring harness and connector. The GH-4001’s compact and rugged design allows it to be installed virtually anywhere in the cockpit, providing valuable airspeed, altitude, attitude, turn rate and vertical speed data to the pilot or pilots in the event of a panel failure.

GH-4001 ESIS Key Features:

  • In-cable configuration module
  • Field-loadable software and display settings
  • Rotor speed indicator (external sensor required)
  • Illuminated menu button
  • System status menu with maintenance output capabilities
  • Full Mil-Qualification, MIL-STD-1553 interface

Sunlight readable AMLCD with LED backlight…and more

The unit, which features a sunlight-readable AMLCD with LED backlight, aligns in less than a minute after startup. The GH-4001 has the capability to display Rotor Speed and Vertical Speed tapes. The preferred presentation of flight data as well as software updates can be accomplished in the field, eliminating the need to remove the unit for display updates. The GH-4001 also features a system status menu page, simplifying the maintenance of the unit.

Configurable for single and tandem pilot aircraft

The 3-ATI GH-4001 is configurable for single and tandem pilot aircraft, with a repeater display (GHR-4001) available for multiple cockpits. The ruggedized GH-4001 is designed to integrate with existing magnetometers and contains high rate sensors built to Mil-qualification standards, enabling it to be installed on any platform. The GH-4001 is a direct replacement for the GH-3001 model and uses the same wiring harness and connector.

GH-4001 GHR-4001* (Repeater Display)
Dimensions (L x W x H) 8.60 in. x 3.20 in. x 3.20 in.
(21.84 cm  x 8.13 cm  x 8.13 cm)
8.60 in. x 3.20 in. x 3.20 in.
(21.84 cm  x 8.13 cm  x 8.13 cm)
Weight 2.9 lb. max (1.32 kg) 2.3 lb. max (1.04 kg)
Power 22 W / 10 W 16 W / 7 W
Qualifications • MIL-STD-810
• MIL-STD-461
• MIL-STD-810
• MIL-STD-461

* The GHR-4000 Repeater relies on the GH-4001 for data and contains no internal sensors.

Product Support

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