hello no you shouldn't have to do that.. michel will just does this thing? for your information, v1 is at about 120-140 nots, and vr is at about 150-170 nots for crj-700. flaps 20 is not a good choice. it will slam you to the ground if you do so. please set it to 8. you have this mail from hadi From: tonys_groups@xxxxxxxxxxxxxx To: bvipilots@xxxxxxxxxxxxx Subject: [bvipilots] CRJ 700 Date: Mon, 28 Nov 2011 18:13:42 +0000 Hi All I wonder when flying this aircraft whether calibrating the V1 VR and V2 is necessary from within IYP. Also, what should the flap position be on take-off? Looking at the flight notes, they advise flaps 20. I tried this with disastrous results, which is why I’m wondering whether I need to calibrate the V1 VR etc. T