Which flight control system was developed in the 1950s and 60s to relax the stability of an aircraft in an effort to make it more maneuverable?

Which flight control system was developed in the 1950s and 60s to relax the stability of an aircraft in an effort to make it more maneuverable?

• A. Fly-by-wire
• B. Conventional mechanical linkage
• C. Hydraulic-powered control
• D. Cable-and-pulley system

Answer: (A)

Relating to how pilots control aircraft, fly-by-wire replaces direct mechanical or hydraulic linkages with electronic signals and computer-controlled surfaces. This setup lets flight-control computers run laws that shape responses and, when desired, reduce static stability to make the aircraft more responsive and maneuverable. The computer can then ensure safety by limiting deflections, smoothing out gusts, and preventing overcontrol, effectively trading some natural stability for agility while keeping the plane controllable. Traditional mechanical linkage or purely hydraulic or cable-and-pulley systems don’t provide that programmable, enforced shaping of the flight response, so they don’t achieve the same level of relaxed stability with automatic safety features. That is why fly-by-wire is the best choice.

Relating to how pilots control aircraft, fly-by-wire replaces direct mechanical or hydraulic linkages with electronic signals and computer-controlled surfaces. This setup lets flight-control computers run laws that shape responses and, when desired, reduce static stability to make the aircraft more responsive and maneuverable. The computer can then ensure safety by limiting deflections, smoothing out gusts, and preventing overcontrol, effectively trading some natural stability for agility while keeping the plane controllable. Traditional mechanical linkage or purely hydraulic or cable-and-pulley systems don’t provide that programmable, enforced shaping of the flight response, so they don’t achieve the same level of relaxed stability with automatic safety features. That is why fly-by-wire is the best choice.