Quote from rudderrudderrat:
FCOM FCB5 Avoiding Tail strikes; “Assuming an 8 kt speed decrease during flare, and a -1 ° flight path angle at touchdown, the pitch attitude will increase by approximately 4.5 °”
"So during the flare, the flight path is changed by +2° (-3° to -1°) for a loss of 8kt. Therefore the angle of attack increases by 2.5° (4.5°-2°) for about 8 kts reduction in speed.
"From the diagram, αfloor is about 8 kts from αMax, therefore in CONF 3, αMax would seem to be about 14° + 2.5° = 16.5°
I take it you are assuming Nz is 1G before and after the flare? I'm wondering about the possible change of ground effect on the 1G-AoAs between (say) 30'R and 5'R.