Re: SpaceX is a go for April 30th: 1st commercial launch to space stat
I assume from 5 to 4 Merlins, which is what was done.
I haven't read anything confirming the number of engines being used. I have seen artists concepts using both 4 and 5 engines though. And why would a change in number of engines be "controversial"? Beyond the fact that having less might not be enough to do the job?
Baby, you and me were never meant to be, just maybe think of me once in a while...