Aircraft digital flight-control: Pilot display elements 05/10

The Tejas aircraft DFCC channels are built around 32-bit microprocessors and use a subset of the Ada programming language for software implementation. The computer interfaces with pilot display elements like the MFDs through MIL-STD-1553B multiplex avionics data buses and RS-422 serial links.

The development of an AESA radar for the Tejas is expected to begin pending the selection of a developmental partner. The contenders for the contract are the European Consortium EADS and the Israel’s Elta. The initial contract will see the co-development of 10 prototypes.

While each of these factors can reduce production costs, an additional benefit — and significant cost savings — is realised in the shorter time required to assemble the aircraft — seven months for the LCA as opposed to 11 months using an all-metal airframe