Thanks for posting ! ... and the page seems to be online again here:
http://www.acfavi.hpg.ig.com.br/ax.htm ... but as I understand the text it was the "Embraer A-X" not an italian project !?! ???
Especificações Técnicas (Resumo)
EMBRAER "AX"
Características: monoplano, asa alta, monoplace, monorreator
Motor: Turbofan Rolls-Royce/Snecma M45H com 3.500Kg de empuxo
Span:.......................................8,70 m
Length:...................................11,25 m
Height:....................................4,03 m
Wing area:...............................16,75 m²
may. speed:.............................1.000 Km/h
Otherwise it's quite interesting to see the next Brasilian predecessors of the AMX alias MFT-LF (Modern Fighter Trainer - Light Fighter):
http://www.acfavi.hpg.ig.com.br/embraer%20mft.htm
Cheers, Deino