18-25% on takeoff (weight dependent)
A320 landing 22-32% (weight dependent)
A321 landing 45-63% (weight dependent)
I find the A320 will settle in nicely at 26-28% with heavier (for our jetBlue configuration of 162 pax) landing weights (146K pounds)
The A321 for some reason I cannot figure out-USED to be roughly the same but a touch more-like 30-40% which made sense as it’s bigger with the same wing, but not by much more. After a recent update maybe the last or second to last 2018 one-the A321 now requires quite a bit more. Could’ve been the update to crosswind handling or something else. But I tried to re-replicate the ~30% and found it uncomfortable.
I’m still testing the A330 but it seems similar trim to
the A321 works.
The E190-needs 10-15% on takeoff-it flies off the runway unintentionally at anything higher, on landing I’ve had up to 68-72%
I hope this helps. It’s all in the feel and the trim is quite dependent on your Vapp being calculated properly
If you use the Vapp/Vref Charts for the A320/321 on the last two pages of the PDF below and do the additives properly, you should get consistently good landings.