The Boeing FBW commercial transports provide integral control in the full-up Normal Mode such that differences between pilot commands and airplane response are driven to zero in steady state. The backup control laws provided in Secondary and Direct Modes do not involve integral control and thus will not drive command errors to zero. These backup modes provide very simple feedback to increase "tameness", but will not stabilizer otherwise unstable characteristics. At some conditions (such as aft cg at higher angles of attack) the unaugmented airplane will not be stable, but the combination of the bare airplane handling characteristics and the simple feedbacks provided by the backup modes will provide for continued safe flight and landing.