Thing is, if you’re able to hit your target in a few minutes, your engine, your avionics or even your software stack only needs to last a few minutes.
I can’t find a Google reference right now on my mobile, but there’s a relatively well known example of a mission having some sort of loop related overflow in the guidance software that wasn’t fixed because by the time it could possibly happen, the rocket has burned out and the missile has done its job, it’s either exploded or is falling out of the sky and the software bug was irrelevant.
I can’t find a Google reference right now on my mobile, but there’s a relatively well known example of a mission having some sort of loop related overflow in the guidance software that wasn’t fixed because by the time it could possibly happen, the rocket has burned out and the missile has done its job, it’s either exploded or is falling out of the sky and the software bug was irrelevant.