quote
"You are dreaming if you think you can recertfy the Ejet (190) or the F100 to under 20 tonnes, considering the operating weight of the E190 is just under 28 tonnes and the F100 is around 24 tonnes."
Nope !!!
Not talking E190 but rather ERJ135LR (Jetgo's is 1kg too heavy @ 20T exactly)
Not F100 but F50-most are 20,870KG MTOW.