.. caveat .. depends on the jurisdiction .. in Oz, VMC-predicated departures are limited to smaller Types. Originally up to 50,000 lb which, unfortunately, was metricated to 20T .. which excluded the F27 and 748 .. although I note that it was then changed back to 22.7T to give back that which was taken ... Quite amazing .. I argued with CASA and precedent organisations until I was blue in the face and got nowhere .. obviously somewhere along the line someone in the organisation came along with a bit more attentiveness to the history ..