In order to evaluate the bids that various aircraft manufacturers submitted in response, a special Advisory Group for Aeronautical Research and Development (AGARD) committee conducted extensive evaluations. The designs were required within two months of the competition, in which time an assortment of submissions were made, mainly by European companies. Besides the G.91, these included the Northrop N-156, Dassault Mystère XXVI, Sud-Est Baroudeur, Aerfer Sagittario 2 and the Breguet Br.1001 Taon. On 18 March 1953, these submitted designs formally began to be assessed by the AGARD committee, which was under the chairmanship of Theodore von Kármán. The initial project selection process took 18 months to complete.