Originally Posted by
peekay4
Well it's easy to show mathematically that the probability of at least one engine failing is greater when you have 4-engines vs. 2-engines.
Indeed - all else being equal (which it never is) if you increase the number of engines you increase the probability of experiencing an engine failure. With a sufficiently large number of engines - the probability of at least one engine failing approaches gets close to 100%. The only way to reduce the probability of an engine failure to zero is to not have any engines
