Wileydog3 said :
Overboost on a jet engine. Over-temp, yes. Over-speed, yes. Overboost, no. Overboost is a recip term and problem
Probably a semantic problem , but my Manual says :
" thrust protection is not provided (...). As a result
thrust overboost can occur at (... ) "
Somewhere else:
" avancing the thrust levers full forward provides some
overboost (...)
And refering to my old time engine course , on a thrust vs Temp. graph , until the thrust break temp. the graph is flat and means thrust limitation ( case resistance ) then there is EGT limitation ( mettallurgy resistance) )