How many scienepacks / minute can a rocket silo make without Modules?

[Unik]

Hi,

https://doomeer.com/factorio/?fbclid=IwAR2zLRt7EO3A3v-Y1-P9xGwXK8SD0gWPNzcehKUwyW9wRe8zyV0uMLLTM3s#s1132Pbbbbbbbbbbbbbbrgrgrrrrgrrrgrgrrrrrrrrrrrrrrrrrrgrrrrrrrrrrr1rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr

says 1/s.


https://kirkmcdonald.github.io/calc.html?fbclid=IwAR0GSrZc_vwT3tj2q8AJyPOWOggbS5oQ7oZZOHAFULGnNncR0qKcJMSdrqU#data=1-1-19&rate=s&items=space-science-pack:r:27/10

says

2.7 - 2.9/s

Ask for explanation.
Thx

[Fel]

On doomer you specified 1/s so it calculated just that and there is no setting that I know to tell it to calculate from a number of buildings instead.

You can always do the math when you are not sure.
The rocket silo has a base speed of 1 so we can directly take rocket parts for the time to craft, they take 3 seconds each.

You need 100 rocket parts for a launch and it gives 1000 white science packs, so we start with a simple math of 300 seconds for 1000.
1000 / 300 = 10/3 = 3.33333

But the rocket launch itself takes 40.33 seconds and we need to insert the satellite (ideally from a chest with a fast inserter to minimize the time).
Chest to chest fast inserters have 2.31 cycles per second so it takes about 0.44 seconds for the insertion.
1000 / (300 + 40.33 + 0.44) = 2.9345...

So in ideal conditions you could get about 2.9 per second, the 2.7 probably accounts for slightly less ideal conditions like taking from a belt and with a yellow inserter for the satellite.

[Unik]

Thanks for the explanation, now the calculation on kirkmcdonald also makes sense. Doomeer doesn't seem to display it properly. For example, if I give 1.1 / s science, it shows 1.1 required rocket silos, although it can be done with between 2.7 and 2.9 / s.