What does BFCS mean in NASA

BFCS stands for Back-up Flight Control System. It is a secondary system that is used to control an aircraft should its primary systems fail or become compromised.

By utilizing a back-up flight control system, pilots can enjoy greater levels of reliability and accuracy during their flights, as well as smoother and safer control over the aircraft itself. This results in improved safety for pilots and passengers alike.

While not all commercial aircraft require BFCS, many do utilize it regardless due to its numerous advantages over manual piloting alone. Some airlines may choose not to equip their planes with this redundant system depending on their individual needs and requirements.

The BFCS works by augmenting the primary flight controls with additional input from various sensors such as airspeed, position, altitude, etc., providing additional redundancy should these primary systems fail or be compromised. The back-up system then takes over command of the aircraft's attitude or other required functions in order to ensure continued safe operation.

Installing a back-up flight control system may come with some cost overhead depending on the type of aircraft it is being installed on. However, considering that this technology provides great benefits such as improved safety and reliability when operating an aircraft, it is often well worth investing in if you are looking for ways to improve your overall flying experience.