In the days of Michael Schumacher, ventilation holes had not been studied so closely, as seen by the mere 100 ventilation holes on the discs in his last Ferrari. The discs on the current Formula 3 cars don't have any holes. Instead, they have the traditional fins, 24 or 48 depending on the use.
It is clear that having ventilation holes would be better for increased heat transfer, but the need to contain costs mandates this sacrifice. The different braking force demanded by the two categories is also seen in the brake calipers used. Brembo supplies the biggest Formula 1 teams with aluminum-lithium calipers in three different alloys, which correspond to the different weight characteristics and resistance to high temperatures.
The calipers have to integrate seamlessly with the cooling system in the corner of the car and with the aerodynamic solutions designed specifically for each team. The Formula 1 monobloc calipers machined from billet, which were introduced by Brembo in a worldwide preview in the 1980s with Scuderia Ferrari, have 6 pistons on each side in the front and 3 on each side in the rear. The calipers on the single-seater used by Mick Schumacher during the last two seasons are also monobloc but they are made of forged aluminum and have just 4 pistons each. Plus, the caliper Brembo supplies the Formula 3 cars is identical for all the teams and for all 30 seasonal races.
In Formula 1, each team uses a specific caliper that has been personalized for their design choices. When Michael Schumacher raced, there was an even stronger push for research given there were different calipers for each of the circuits.
But that led to significant organizational problems because if there was an emergency, it was impossible to replace one caliper with another designed for use on a different track. As if that wasn't enough, up until 2000, Michael's calipers were made of beryllium, a material that the FIA has since banned due to its exaggerated costs.
So, our comparison between Michael Schumacher and his son Mick ends here, but we are sure that in the next few years it will be enriched with more compelling stories.
Keep Fighting Michael, Keep Pushing Mick.