sentences:  Braking was controlled with a lever on the right-hand side of the front-seat instrument panel; differential braking was not possible, and no brake controls were provided for the rear-seat pilot.Other features included single-slotted wing flaps with 4 adjustment positions, and pilot-adjustable trim tabs for the elevator and rudder; elevator trim was adjusted using a sidewall-mounted lever.The prototype Lancer underwent development between 1961 and the start of production in 1963.