ROPS consists in 2 sub-functions ROW and ROP, one for the in-air phase and
one for the on-ground phase :
Runway Overrun Warning (ROW) provides in-air alerts in case of detection of a risk of runway overrun. ROW is active until a “transition point” from the in-air phase to the on-ground phase (the “start of braking”).
ROW provides aural and visual indications when computed stopping distances exceed the remaining runway length.
In that case and by procedure, the flight crew should perform a go-around maneuver.
ROW alerts are “Go-Around minded”
Runway Overrun Protection (ROP) provides on-ground alerts in case of detection of a risk of runway overrun. ROP is active from the transition point.
ROP provides aural and visual indications if the current aircraft deceleration
or aircraft’s capability to decelerate is not sufficient to safely stop before the
end of the runway.
In that case and by procedure, the flight crew should apply full pedals braking and set/keep max reverse.
ROP alerts are “Stop minded”
Author –
Zinhom Mahmoud
Aviation Training Consultant at EgyptAir