Conceptual work began in 1941, and final specifications were defined on November 2, 1942.

This week the companies will get a Pentagon computer disk encoded with the fighter's final specifications.

A lower-cost standard version will be available in September, although the final specification and price haven't been decided yet.

But should you make the move without a final specification in place?

The preliminary standards were released late last month, and the new "final specifications" offer few revelations.

The final specifications for cosmonauts were approved in June 1959.

Paul had gone to South America to arrange the final specifications.

The initiative was annulled after two years when developers couldn't agree on final specifications.

As a project little had been confirmed about the car's final specification.

These are normally the final specifications for the device.