What I'd like to know is this:
The E-Jet had to do the whole plot of noise, steep app, both ends,40 landings and 40 take offs plus much,much more.
The A319 did one touch and go and a full stop, all on 28. (
AFAIK)
While I'm prepared to accept that the Airbus may have done a bit more than I state above, it certainly did not do the week long comprehensive series of flights that the 190 did.
Now both (I think) are certificated.
How so?