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Formerly known as Head-Up Guidance System (HGS), HUD was certified for the 737 by the US FAA in 1994 to allow Cat IIIA landings down to 200m RVR and take-offs in 90m. The first production 737 HGS was fitted to a 737-300 of Morris Air (later bought by Southwest) delivered September 1995.

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*** Updated 18 Apr 2019 ***

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The HGS comprises of an overhead unit which contains the CRT and projector; a combiner, also known as the Head Up Display (HUD), which combines the projected display with the outside view; a control panel for data entry and to select mode of operation and an annunciator panel on the F/Os instrument panel.

HGS Control Panel

Primary Mode Display

Cat III at 50ft

BBJs have been offered with an Enhanced Vision System (EVS) capability since 2009. This overlays the EVS display onto the HUD and also onto the F/O’s ND for single HUD aircraft.

Nose-mounted EVS Camera on a BBJ

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