SBAS-AFRICA

Improving aviation safety

South Africa’s aerodromes provide accessibility to rural settlements and remote locations, and are vital to businesses and the economy. However, navigational aids for landing and take-off are limited, which has led to accidents. A pan-African navigation programme using Avanti’s satellites has been improving aviation safety.

Region: South Africa
Partners: UK Space Agency. South African National Space Agency (SANSA), ASECNA, Thales Alenia Space, Adroit Economics, GMV, Pildo Labs, Nottingham Scientific Limited, University of Bath.

The Solution

Led by Avanti Communications, the SBAS-AFRICA project has deployed a satellite-based augmentation system which uses two Avanti satellites (ARTEMIS and HYLAS 2). A navigation transponder on-board the ARTEMIS spacecraft transmits navigation information, and HYLAS 2 ensures reliable high performance data communications for the SBAS infrastructure.

SBAS GPS provides 1 metre accuracy in real-time, enabling precision approaches and take-offs. SBAS is an internationally recognised and standardised service that is highly reliable and cost-effective. Critically, many existing GPS receivers on aircraft can already receive SBAS signals. The SBAS-AFRICA programme is funded under the UK Space Agency’s International Partnership Space Programme (IPSP).

The Solution

Led by Avanti Communications, the SBAS-AFRICA project has deployed a satellite-based augmentation system which uses two Avanti satellites (ARTEMIS and HYLAS 2). A navigation transponder on-board the ARTEMIS spacecraft transmits navigation information, and HYLAS 2 ensures reliable high performance data communications for the SBAS infrastructure.

SBAS GPS provides 1 metre accuracy in real-time, enabling precision approaches and take-offs. SBAS is an internationally recognised and standardised service that is highly reliable and cost-effective. Critically, many existing GPS receivers on aircraft can already receive SBAS signals. The SBAS-AFRICA programme is funded under the UK Space Agency’s International Partnership Space Programme (IPSP).

The Benefits

  • SBAS-AFRICA trials at Lanseria International Airport have demonstrated that introducing SBAS approach procedures on just one runway at the airport could increase flight operations by 1.5%
  • SBAS services can also increase the amount of time runways are operational
  • Costs of installing additional ground based navigational aids can be avoided
  • Overall, the adoption of SBAS for approach and landing procedures will improve landing safety and reduce the amount of accidents
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