The ASGSI projects a beam of light, with coloured sectors, from the aft face of the ship. This beam is stabilised to remove the effects of the ship's roll and pitch and provides the helicopter pilot with visual information relating to his approach angle. The coloured sector of the beam seen by the pilot will indicate to him if his approach is above, below or on the correct glide path. The ASGSI is compliant for use with Night Vision Devices (NVD) as defined in STANAG 1445 & DEFSTAN 02-587 part 3. There are various beam configurations available to suit different naval requirements, all of which may be designed to also comply with NVDs.

Key Features

  • Beam width +/-20 degrees

  • Visible up to 6NM

  • Suitable for both aided (NVG) and unaided use

  • Low Power Consumption

  • Long Life LED light sources – typically 100,000 hours



Shock – MIL STD 901D Grade B

Vibration – MIL STD 167A-1

Environmental – MIL STD 810


Applicable Design & Manufacturing Standards

  • STANAG 1445

  • DEF STAN 02-587 Part 3

  • HOSTAC Vol 1 limits

  • Radar Cross Section (RCS) Requirements

  • BS EN 60439-2

  • BS EN 60947-1

  • BS EN 60529

  • DEF-STAN 05-21

  • ISO 9001