Narrative:

Typically; we used flaps 8 for takeoff. The green to configuration can lead you to an incorrect performance flap setting. I believe this airport requires flaps 20 for all takeoff(s).we had many issues and distractions in the preflight. You have to run proposed takeoff weight (ptow) performance weight and balance numbers and tell the gate how many passengers and bags you can take. The performance numbers change significantly depending on the meteorological conditions and the runway you are using. The ramp comes up to the cockpit every few minutes to 'check' on what we have decided for the people and bags count. We taxied out for deice and dispatch sent us an ACARS regarding writing up the forward and aft potable water; which was drained because of the cold weather (we have since received a memo saying we don't have to write it up).while getting deiced I contacting maintenance and dispatch for the write up and so we could get the correct performance numbers. We then ran the performance numbers again. During the deice we missed one expected departure clearance time (edct) time and they gave us another. Taxiing off of the deice pad because we had just met our edct time. We completed our checklist and noted flaps 8 for a normal takeoff. In the meantime the tower was calling us to see if we were ready. He cleared into position we completed our checklist and as I was bringing up the power; I reviewed the performance for a full power static tactic and that is when I noticed the flaps were in the eight position and not the twenty position as required by the performance weight and balance. I then selected flaps 20 which caused the misconfig. All the numerous distractions; the pressure to get the runway for takeoff; and the typical normality of a flaps 8 takeoff; green to configuration; contributed to us receiving the misconfig message.in position [at the] airport. I brought the power up and I noticed the flaps were in the 8 degree position. We were supposed to be configured for a flaps 20 takeoff. The flap misconfig message was caused because I had the power up and initiated the flap 20 movement. We were given the green takeoff within a few seconds. I corrected the issue and we continued.I am writing this [report] because there should be a memo reviewing the takeoff and landing considerations for this airport. There are a meteorological conditions and terrain which cause performance requirements at this airport that need to be addressed to our pilot group. The first consideration is that crews have to make sure you meet the dispatch check weights. Following that; crews need to consider the runway for takeoff; configuration of the airplane (anti-ice) on and fuel requirements because all these can severely limit your max takeoff weight (mtow). All that has to be considered before you can board the airplane. Typically; we used flaps 8 for takeoff. The green to can be a misnomer and lead you to an incorrect takeoff configuration. I think the crews should verify the correct flap setting is in for the performance and runway. I believe this airport requires flaps 20 for all takeoff(s). I can't say for sure because I haven't run all the scenarios. If the training department would check and review the performance issues for this airport; I think the pilot group would greatly appreciate it.

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Original NASA ASRS Text

Title: CRJ-700 Captain reported beginning the takeoff roll with the flaps set to 8 degrees instead of the computed 20 degrees.

Narrative: Typically; we used FLAPs 8 for takeoff. The GREEN TO CONFIG can lead you to an incorrect performance FLAP Setting. I believe this airport requires FLAPS 20 for all takeoff(s).We had many issues and distractions in the preflight. You have to run Proposed Takeoff Weight (PTOW) performance weight and balance numbers and tell the gate how many passengers and bags you can take. The performance numbers change significantly depending on the meteorological conditions and the runway you are using. The ramp comes up to the cockpit every few minutes to 'check' on what we have decided for the people and bags count. We taxied out for deice and dispatch sent us an ACARS regarding writing up the Forward and Aft Potable Water; which was drained because of the cold weather (we have since received a MEMO saying we don't have to write it up).While getting deiced I contacting Maintenance and dispatch for the write up and so we could get the correct performance numbers. We then ran the performance numbers again. During the deice we missed one Expected Departure Clearance Time (EDCT) time and they gave us another. Taxiing off of the deice pad because we had just met our EDCT time. We completed our checklist and noted FLAPS 8 for a normal takeoff. In the meantime the tower was calling us to see if we were ready. He cleared into position we completed our checklist and as I was bringing up the power; I reviewed the performance for a full power static tactic and that is when I noticed the flaps were in the Eight position and not the Twenty position as required by the Performance Weight and Balance. I then selected FLAPS 20 which caused the MISCONFIG. All the numerous distractions; the pressure to get the runway for takeoff; and the typical normality of a FLAPS 8 takeoff; GREEN TO CONFIG; contributed to us receiving the MISCONFIG message.In position [at the] airport. I brought the power up and I noticed the FLAPS were in the 8 Degree Position. We were supposed to be configured for a FLAPS 20 TAKEOFF. The FLAP MISCONFIG message was caused because I had the Power up and initiated the FLAP 20 movement. We were given the GREEN Takeoff within a few seconds. I corrected the issue and we continued.I am writing this [report] because there should be a MEMO reviewing the takeoff and landing considerations for this airport. There are a meteorological conditions and terrain which cause performance requirements at this airport that need to be addressed to our pilot group. The first consideration is that crews have to make sure you meet the dispatch check weights. Following that; crews need to consider the runway for takeoff; configuration of the airplane (ANTI-ICE) ON and FUEL requirements because all these can severely limit your Max takeoff weight (MTOW). All that has to be considered before you can board the airplane. Typically; we used FLAPs 8 for takeoff. The GREEN TO can be a misnomer and lead you to an incorrect takeoff configuration. I think the crews should verify the correct flap setting is in for the performance and runway. I believe this airport requires FLAPS 20 for all takeoff(s). I can't say for sure because I haven't run all the scenarios. If the Training department would check and review the performance issues for this airport; I think the pilot group would greatly appreciate it.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.