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McLaren F1 scorching hot brakes caused by pressure build up and reverse flows

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John S:
James Key calls it "oddball" that front brake ducts caused airflow to stall or reverse in certain circumstances.  :o

Sure is complicated stuff this underfloor Bernoulli ground effect stuff - and aerodynamics in general.
Some get excessive porpoising, some get fiery hot brakes  :D

https://www.gpfans.com/en/f1-news/83044/mclaren-oddball-brake-troubles-over/?dicbo=v2-d805f55b52b2c9b0a623ef3015aad9e2

lkjohnson1950:
And yet the teams of 40 years ago made it work. It worked so well they banned it. It sucked the manhole covers off the Detroit streets.  :DntKnw:

John S:

--- Quote from: lkjohnson1950 on May 26, 2022, 10:48:53 PM ---And yet the teams of 40 years ago made it work. It worked so well they banned it. It sucked the manhole covers off the Detroit streets.  :DntKnw:

--- End quote ---

Indeed they did Lonny. However they did have big advantage of almost no Regs around things like brake duct size or shape, and almost complete freedom to interpret most areas of the cars as they wished.  ;)

cosworth151:
I think there was also a larger margin of error back then. Today's designers depend on CFD and all sorts of other software to build systems to deliver exactly the right amount of cooling to the components - not one bit more or less. When something unexpected pops up, that delicate balance of air flow vs drag goes right out the window.

lkjohnson1950:

--- Quote from: John S on May 27, 2022, 11:29:27 AM ---
--- Quote from: lkjohnson1950 on May 26, 2022, 10:48:53 PM ---And yet the teams of 40 years ago made it work. It worked so well they banned it. It sucked the manhole covers off the Detroit streets.  :DntKnw:

--- End quote ---

Indeed they did Lonny. However they did have big advantage of almost no Regs around things like brake duct size or shape, and almost complete freedom to interpret most areas of the cars as they wished.  ;)

--- End quote ---

Yes they did. I think F1 is overregulated. I don't think restricting the cars does the little teams any favors.

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