The Singapore Grand Prix this weekend was designated as the first official “Heat Hazard” in the Formula One, marking the first time a new cooling-off rule has been implemented.
Due to the anticipated 31C or higher ambient temperatures, race director Rui Marques issued a statement on Thursday afternoon notifying the teams. This means that drivers will be permitted to wear cooling vests.
A Heat Hazard is declared, according to Marques, who received a forecast from the official weather service that said the race would take place at some point during the race and will likely have a Heat Index above 31C.
One of the most physically demanding F1 races in Singapore is the Marina Bay Street Circuit, which is characterized by extremes in temperature, humidity, and weather.
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During the night race, which frequently exceeds the two-hour race limit, drivers can shed up to three kilogrammes (more than six pounds).
Some test drivers claimed that the vests made it very uncomfortable in a cockpit that was already cramped because of the coolant tubes that were connected to pumps and a heat exchanger on the vests.
In consequence, the governing body, FIA, stated that while wearing the vests is not required, drivers or teams must still have their vehicles equipped with the tools necessary to make them work.
To avoid losing ground to those who don’t, drivers who don’t have vests will need to carry an additional 0.5% of ballast.
Every kilogram of spared weight can result in tenths of seconds off lap times, which is a significant benefit.
Following the Qatar Grand Prix in 2023, when several drivers needed medical attention after being sweltering in the heat, the cooling vest system was created.
At this year’s Bahrain Grand Prix, George Russell  tested the cooling vest and gave it a thumbs-up.
The Mercedes driver continued, “Of course there is always room to improve.” I wanted to try it out. “So good so far”
Source: Channels TV
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