Some fear the project may have to be scrapped, which would leave plans to build the Royal Navy's two 60,000-tonne aircraft carriers without a designated aircraft. The CVF carrier project, a joint programme between the Ministry of Defence, BAE, Thales and KBR, faces a crunch this summer. Originally costed at £2.9bn, the price is now put at a more realistic £4bn, and this is not available under present defence budget pressures.