"Jimmy Macintosh "Slight aside, but with regards to the detent sytem to limit movement, if I recall correctly when Cottesmore was the TTTE back in the late 80's the tensions of the detent on one tornado were set incorrectly (I think not enough shim in place) and someone managed to sweep the wings while the flaps were down

""
The bit of kit that controls the interaction between wing sweep angle and flap/slat position is the "High Lift Wing Sweep Control Unit - HLWSCU" It's basically a mechanical computer with detent drums, driven by the position of the wings and flaps/ slats to either permit or block the selection of things. If the wings are back, and manoeuvre is selected on the throttle top, then the flaps/ slats should not deploy until after the wings have moved forward. Also, the throttle quadrant has mechanical interlocks, preventing the inadvertent selection of flaps with wings back, or wings back with flaps selected.