Fanwall - a wall made out of fans

Making a fan wall that sits in the windowsill and pulls in cool air.
My house gets warm during the day and doesn’t cool off quickly enough.

10 rows x 4 columns of 120mm fans
12V 10A power supply
3mm plywood cut into strips and glued into a frame shape
heap of cable ties
Yellow sort of beige paint to match window frame

Will 40 fans be somewhat noisy? Add up the CFM capacity to estimate the effect.
I suggest finger guards (or another protective solution, e.g. flyscreen).
Bonus feature: temperature controlled activation?

This was a concern, I originally chose 120mm fans as there would be less of them to make noise than the same area of say 80mm fans.
The fans I bought turned out to be pretty week and when its on its quieter than normal our pedestal fan.