Смотря какая загрузка, погодные условия. На 321 набираю в два этапа, это в руководстве даже написано.
"Initial Climb Be aware of the flap retraction speed (S speed) versus the flap limiting speeds. At high weights S speed may be close to the red 'barbers' poll. In this case the flaps will auto retract to F1 (just slats) at 210kt (1+F limit of 215kt minus 5kt) and give the pilot some speed to play with up to the next limit (230kt). Green Dot speed may also be close to, or slightly above, 230kt so a quick selection of flaps up at 230kt is required to avoid the overspeed. The whole climb out will be SLOW! A careful look at the PERF page before take-off will give the pilot a 'heads up' so the flap retraction method can be briefed. When heavy, you can very quickly get yourself into Alpha Floor...It normally happens with turning departures and just above S speed, you go Flaps 0 and the aircraft passes a waypoint, and as it rolls, VLS charges up because of bank angle and a lack of slats. Give yourself 10kts past F speed prior to retracting to slats only. Climb The climb at 250kt will be only slightly above the GD speed at high weights. Expect lower initial cruise FLs, possibly FL310/320, when the initial take-off weight is circa 85T plus. The climb speeds above FL100 in the 321 are normally a little higher than the 320/319 (at a given CI) which will result in an earlier transition to the MACH climb phase. The final stages of the climb will take some time with rates of climb around 500fpm to be expected"