between 1951 and 1956 was interrupted by numerous sea trials to evaluate the vessel as each new type of equipment was installed. By the time work on the ship was completed, she had been fitted with a variety of radar sets, including a DRBV 11 air/surface search radar, a DRBV 20 air search radar, and a DRBV 30 navigational radar. Fire control radars included a DRBC 10A set for the main battery, six ACAE sets for the heavy anti-aircraft battery and five DRBC 30B sets for the light anti-aircraft guns. Her normal displacement had risen to , with full-load displacement at . With the greater weight of the ship, draft increased to . She was finally pronounced complete on 1 May 1955, and that month she embarked President René Coty for a visit to Denmark, escorted by the destroyer . After returning from the cruise, which also included a visit to Oslo, Norway, she left in July to represent France at a celebration in New York of the 175th anniversary of the landing of French soldiers led by the Comte de Rochambeau during the American Revolutionary War. She thereafter conducted a series of training cruises off the coast of Brittany in August and September before transferring to the Mediterranean in October. She arrived in Toulon on 17 October, and four days later, Jean Bart replaced Richelieu as the flagship of the training squadron. Jean Bart spent late 1955 and early 1956 in port and conducting gunnery training in Les Salins d'Hyères. For the first and last time of either of their careers, Richelieu and Jean Bart cruised together on 30 January 1956. In June 1956, Jean Bart went on a tour of French North Africa. As tensions with Egypt over the control of the Suez Canal flared in 1956, the decision was made on 8 July to deploy the ship to Egypt. Jean Barts superfiring turret was reactivated in August and on 7 September, she conducted shooting practice with the turret in company with the cruiser off the coast of North Africa. She thereafter deployed with the French Naval Intervention Force during the Suez Crisis, Operation Mousquetaire, though with only her superfiring turret in operation. During the operations off the canal zone, she carried a complement of 1,280 officers and men, despite the fact that her projected wartime crew amounted to 2,220. This meant that only half of her anti-aircraft