Optimum and max altitude Airbus
 

Good morning guys,

Does somebody know which is the reason of the n= 1,4g line on the all engine qrh graphic?

Thanks

Optimum & Max
 

Though there is a range of g values depending on weight & ISA, for my A320......

From 50T to 72.5T and from ISA to ISA +10 each value for MAX LEVEL is 1.4x g.
x being the variable depending on weight & temp, range is 1.40g to 1.47g