Originally Posted by
tdracer
Not much. The MAX 8 and 9 are the mass market aircraft, which Boeing expects to sell in the thousands. The MAX 10 is expected to sell in the hundreds - it's intended to take market from the A321 NEO, but mainly for those who already have 737s.
It's pretty simple math really - it'll cost well north of a $Billion to implement an EICAS system into the 737, plus recurring costs. If Boeing sells 500 MAX 10s, then they need to make an extra $2 million plus per aircraft just to pay for EICAS. Given Boeing might make a total profit on a 737 MAX sale of between $1 million and $2 million per aircraft, it simply doesn't make economic sense to produce the MAX 10 with EICAS. Better to save the money and devote it to a proper 737 replacement somewhere down the line.
Given that the 737 NG is statistically just as safe as an A320 with ECAM (that over hundreds of millions of flight hours), and given that the MAX 8 and 9 are considered "safe enough" with the same basic flight deck as the NG, it's difficult to argue a case for spending an extra couple $billion to make it 'safer'.
Why would it cost so much to put EICAS in the 737? It’s not like they don’t already know how to do it. The screen real-estate is there, so what’s the problem?