Jensy wrote:As such development costs will likely be proportionately higher
One of the key drivers for Tempest is to develop a new technologies and new ways of doing things so that any resultant platforms costs are kept down, avoiding the current spiralling costs of each new generation of fighter. Unless the US comes up with a Stealthy low cost fighter they are willing to export, unlike the F-22, any platform resulting from Tempest should find a very health market for export. In addition with the requirement for both Carrier and land operations a core requirement of FCAS, the latter will possibly be more expensive than the result of Tempest. A key market will be users of the F-16, so as I mentioned earlier alot is going to depend on what the US comes up with. The "Clean sheet", design would be interesting but there is no money for it in the existing procurement plans so something will have to give to fund it.