WRC mainclass from 2027

[EstWRC]

Here we go again with the discussion that’s been here for thousand times…

[saco0o]

Except it's not true. Hydrogen is pretty safe. With hydrogen in open spaces you vitrually can't ever get a vapor explosion or self ignition. The reason is that unlike gasoline, methan etc. it is far ligher than air and therefopre never concentrates in an open space. When it's leaking it just dissipates in the air and nothing happens. It also requires far richer (and virtually impossible in open space) concentration for self ignition than gasoline vapors. Plus unlike gasoline or battries it's not toxic.

Of course you can't shoot the pressurized tank but you can't do that with petrol tank or a battery either.

ah, wait. i was talking more about the "against ev" people talking about cars getting on fire when literally 99% of cars (road or motorsport) ending up in fire are all petrol cars. EVs are relatively a new thing.
and about Hydrogen, they will not be using Hydrogen in open space so its flamable like a fuel tank or the components of a battery, as far as I understand

[mknight]

Here we go again with the discussion that’s been here for thousand times…

I think Mirek's arguments get more hilarous with every iteration.

Now we found out that all those Rockets cannot work. As Mark Watney puts it "nothing bad ever happened when mixing hydrogen with oxygen".

[WRCStan]

I think Mirek's arguments get more hilarous with every iteration.

Now we found out that all those Rockets cannot work. As Mark Watney puts it "nothing bad ever happened when mixing hydrogen with oxygen".

But volatile or not, you still need to ignite it, right? The reports of investigations into that Norway explosion do not explain what that ignition was. One article says "This [incorrectly installed] valve leaked hydrogen which caught fire when it came into contact with the air."

[Steve Boyd]

Hydrogen-powered Hyundai rally car now being driven by Hayden Paddon in NZ...

https://www.facebook.com/HyundaiNZ/v...40aB7S9Ucbxw6v

If you study the video closely, you'll see that the car isn't powered directly by hydrogen - it's a conventional battery electric vehicle. The hydrogen fuel cell is used in the re-charging station that provides the power to re-charge the car battery.

Except it's not true. Hydrogen is pretty safe. With hydrogen in open spaces you vitrually can't ever get a vapor explosion or self ignition. The reason is that unlike gasoline, methan etc. it is far ligher than air and therefopre never concentrates in an open space. When it's leaking it just dissipates in the air and nothing happens. It also requires far richer (and virtually impossible in open space) concentration for self ignition than gasoline vapors. Plus unlike gasoline or battries it's not toxic.

Of course you can't shoot the pressurized tank but you can't do that with petrol tank or a battery either.

The flammability range for a mixture of hydrogen in air is 4% to 75% by volume - one of the largest ranges of any flammable mixture.
Details of how you ensure that the risk of a explosion from a release is minimised is covered in EN IEC 60079-10 Classification of areas - Explosive gas atmospheres.

But volatile or not, you still need to ignite it, right? The reports of investigations into that Norway explosion do not explain what that ignition was. One article says "This [incorrectly installed] valve leaked hydrogen which caught fire when it came into contact with the air."

If there's a hydrogen leak there will be a volume where the mixture of hydrogen and air is within the flammable range. If that volume coincides with a source of ignition then there will be an explosion. Note that hydrogen/air mixtures have one of the lowest ignition energies of any flammable mixture - 0.02 mJ. A hot surface or a spark with more energy than this could ignite the mixture. This is why the design rules for electical equipment for use with hydrogen are the most stringent of any of the equipment groups. A substantial leak from an incorrectly installed valve could well cause a large cloud that came in contact with a light switch, electric motor, incadescent lamp, mobile phone &c &c. The Piper Alpha oil rig disaster was caused by a "plumbing" error, so it isn't just hydrogen that's a problem.

[macebig]

Hyundai is pretty much out. Hopefully, that's the wake up call for all parties involved that Rally 1 cannot continue as is.Imo, FIA and RBMH should sit Ford, Citroen, Skoda, Toyota and whoever else is interested down and work something like a 2 year transition period with Rally 2s (2026-27) and a new ruleset from 2028 that brings privateers back.

[skarderud]

Its like when Gr.B was forbidden and Gr.A became the main class.
A much better championship in every way.

Sorry to say, but FIA/promoter has done a incredible hopeless effort.

Sent fra min SM-S901B via Tapatalk

[PLuto]

Its like when Gr.B was forbidden and Gr.A became the main class.
A much better championship in every way.

Sorry to say, but FIA/promoter has done a incredible hopeless effort.

Sent fra min SM-S901B via Tapatalk

Sorry, but there is one big difference. When Gr.B was forbidden and Gr.A became the main class, there were manufacturers interested in joining the championship and fight for the titles. Currently nobody from Rally2 manufacturers is not interested to fight for the WRC title and they are always and everywhere promoting it as costumer programme. Nobody of them wants to be on the highest level and also I doubt there will be new car homologated in Rally2. So this way doesnt seems to be a future...

[saco0o]

i feel wrc is going the same way wtcc. the world championship with its more powerfull and expensive cars (compare to rally1) was not that interesting anymore and the tcr championships (compare to R5s) were doing super well, with good entries in national and international levels. once wtcc gave up and went tcr, you can see the hardcore fans complaining for a while but then it fades and they are all happy again now - in a way. of course the memory and the desire to come back to a more glorious era still lives in their minds, but it is what it is. touring car racing is just not a big thing anymore in this modern world the same way rallying is not a big thing anymore. (in the sense of manufacturers spending millions and crazy high audiences everywhere, open tv broadcast etc). and theres the f1 factor craving in the other motorsports championship. we all think "our favorite championship" could be big as f1 if we start doing what they did, but no. f1 is f1, period. nothing can get closer to that, thats a fact. anyway, i think we are there already (at the same 'wtcc' point). just an opinion, ok? im not saying IM RIGHT, its just my view.

[Mirek]

The flammability range for a mixture of hydrogen in air is 4% to 75% by volume - one of the largest ranges of any flammable mixture.
Details of how you ensure that the risk of a explosion from a release is minimised is covered in EN IEC 60079-10 Classification of areas - Explosive gas atmospheres.

Yes, but in the open area, let's say on a stage, you can't achieve such concentration without massive rupture of the tank with simultaneus ignition.