US Air Force has awarded contracts to Lockheed Martin and Sensis for engineering and design support to the 3D long-range radar programme.

Lockheed Martin has been awarded a $24.85m deal and Sensis has won a $21.9m contract, according to Forecast International.

Existing AN/TPS-75 radars will be replaced by 3D expeditionary long-range radars (3DELRR) under this programme.

The technology development deals for 3DELRR will include system requirements analysis, modelling and simulation, risk reduction, acquisition planning and capability demonstrations.

In addition, the contractors will also be involved in preliminary design development, testing and development.

The 3DELRR will offer long-range surveillance, aircraft control, theatre ballistic missile detection and combat identification. The next phase of the programme will look into system-level development and how to reduce risks.