It also seems that Saturn V's performance wasn't flawless, even on crewed missions (though some of the problems were down to external factors like lightning or

It also seems that Saturn V's performance wasn't flawless, even on crewed missions (though some of the problems were down to external factors like lightning or debris from Skylab): https://www.wired.com/2012/03/great-balls-of-fire-apollo-rocket-explosions-1965/ https://www.wired.com/2012/03/great-balls-of-fire-apollo-roc... .