Flight Crew Air Transport Pilot (ATP)
Situational Awareness
Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Became Reoriented
Human Factors
It was my leg. Flaps were supposed to be 20. Take off roll seemed a little long; but not scary long. Rotation was smooth and normal; climb rate seemed fine as well. At FRA (Flap Retraction Altitude) I called for 'flaps 8'. The Captain said 'uh there at 8 now'. At that point we realized that we had not set them to 20 for takeoff. We continued the flight without incident.The terrain surrounding this airport was well known to us. We briefed that climb out was to be at VT until MEA of 5;700 ft. The error was not catching the flaps set at 8 instead of 20. We had at least three chances.From now on; I will not just reach over and click the flaps. I'll look at them and make sure the lever is where it's supposed to be. I print of the data so I can read it for the performance check; rather than just keep my head down and read I'll verify what's been set while the Captain does his call outs. And on the before takeoff; I'll check all the data again quickly; rather than just visually verify 'T/O config ok' on the EICAS.
CRJ-200 First Officer reports departing with flaps set to 8 when flaps 20 was required for takeoff performance. The error is not detected until the First Officer calls for flaps 8 after takeoff and the Captain reports they are already at 8.