The current TO/LD performance calculator works nice. but when I try to calculated the TO performance for Q400, I noticed the result not including VFRI and VFTO, which is given in other calculators I have. Same on EJets which need a manual input of VFS in the TO and VAC/VFS for LD as well.
While V1/VR/V2 and Vapp/Vref is universal for most multi-engine aircraft, some have their own Vspeeds, what is there and what’s not might be aircraft dependent, but it would be nice to see the tool could adjust and provide such important information accordingly.
IRL the Boeing OPT will give VREF40(737) or 30 in TO calculation so you know the UP speed (VREF40+70 for 737, or VREF30+80 for otherBoeing), and also FlySmart would give F/S/O speed in TO/LD calculation as well. That can be given by FMC so not as crucial as the above example in Q400 and Ejets, but still nice to have.