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Old 4 Jun 2018, 04:01 (Ref:3826670)   #1
Terry S
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Speed limits in motor racing

In 2013 a young female water skier was killed in the annual Hawkesbury River Bridge to Bridge ski race. These people get up to incredible speeds on the river.

A coronial enquiry was held and the Coroner's report released late last week.

Among the recommendations was that the speed should be limited.

One wonders if this could be applied to motor racing in the future?
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Old 4 Jun 2018, 04:24 (Ref:3826672)   #2
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It's only a recommendation.
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Old 4 Jun 2018, 06:00 (Ref:3826676)   #3
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It's only a recommendation.
I DID say that.
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Old 4 Jun 2018, 06:41 (Ref:3826681)   #4
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Originally Posted by Terry S View Post

Among the recommendations was that the speed should be limited.
Extract from The Coroner's Report
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Recommendations

Recommendations in relation to Ski Racing Australia
1) That Ski Racing Australia continues to consult with its members in considering whether or not to introduce speed restrictions in the Formula 2 class.
2) That Ski Racing Australia collaborate with manufacturers, and its member stakeholders, in giving consideration to the development of helmet technical specifications for water skiers, and to give consideration to revising Ski Racing Australia’s rules accordingly.
3) That Ski Racing Australia collaborate with manufacturers, and its member stakeholders, in giving consideration to the development of Personal Flotation Device technical specifications for water skiers so as to maximise water skier safety compatibly with the performance requirements of the sport, and to give consideration to revising Ski Racing Australia’s rules accordingly.
4) That Ski Racing Australia give consideration to introducing into their rules and procedures a requirement that race scrutineers ensure that all helmets to be worn by skiers are a secure and close fit (snug), and the helmet straps are secure and correctly adjusted.
So... the recommendation referred to was: for SRA to consider restricting speed in a specific category. NOT a blanket speed limit for Water Ski Racing.
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Old 4 Jun 2018, 08:47 (Ref:3826695)   #5
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Top speed down Conrod straight hasn't really increased in 20 years, despite all the developments and power increases over that period of time.
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Old 4 Jun 2018, 09:21 (Ref:3826699)   #6
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Top speed down Conrod straight hasn't really increased in 20 years, despite all the developments and power increases over that period of time.
From my understanding speed down conrod cannot go above 300 kph, otherwise the safety improvements would cost the earth
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Old 4 Jun 2018, 10:05 (Ref:3826703)   #7
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didnt Ingall do 320+ in a nascar?
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Old 4 Jun 2018, 10:25 (Ref:3826705)   #8
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Yeah, but 20 years ago.
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Old 4 Jun 2018, 11:11 (Ref:3826710)   #9
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NASCAR does, in effect, restrict speed by the use of restrictor plates at some of the faster tracks.
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Old 4 Jun 2018, 11:33 (Ref:3826715)   #10
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NASCAR does, in effect, restrict speed by the use of restrictor plates at some of the faster tracks.
Indeed.

This was a "solution" to limiting speeds at Daytona and Talladega implemented in 1988. It should have been temporary but they've not figured anything else out and it's kinda ruined the actually racing at those tracks, imho. It was also used temporarily at New Hampshire, I believe after Kenny Irwin jr. was killed in a practice crash the same year as Adam Petty, but that was actually temporary.
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Old 4 Jun 2018, 13:42 (Ref:3826739)   #11
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Speeds are limited in rally as well - stages are designed to keep below a set average speed. We've seen stages amended (Finland I think was fairly recent) to bring speeds down.
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Old 4 Jun 2018, 13:45 (Ref:3826741)   #12
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Top speed down Conrod straight hasn't really increased in 20 years, despite all the developments and power increases over that period of time.
Aren't they restricted on Conrod to c.300kph by virtue of a fixed final drive ratio and the rev limit mandated by VASC? Or have I just made that up/imagined that to be the case?
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Old 4 Jun 2018, 15:24 (Ref:3826762)   #13
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it's kinda ruined the actually racing at those tracks, imho.

On the basis of a VERY small sample I'd tend to disagree. Of the eight NASCAR races we've been to only one has been at a restrictor plate track, Talladega, & that was among the best we've seen.
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Old 4 Jun 2018, 15:38 (Ref:3826765)   #14
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On the basis of a VERY small sample I'd tend to disagree. Of the eight NASCAR races we've been to only one has been at a restrictor plate track, Talladega, & that was among the best we've seen.
Fair enough. Some people still love it and I used too, but they're pretty much all the same; 200 mph 40 car drafts with 2 or 3 big crashes, one usually on the last lap and very little in the way of actual racing for 500 miles. However, this is from a very jaded NASCAR fan, soooooo...

It's still a spectacle in person!
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Old 4 Jun 2018, 16:36 (Ref:3826780)   #15
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THis is old news. Back in the 1970s, Monza had three chicanes added to reduce speeds. Same for Le Mans in 1990.
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Old 4 Jun 2018, 20:49 (Ref:3826848)   #16
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I think it's more about putting in a hard limiter, so even if you had the full Mulsanne, you couldn't go past, say, 215 mph; I think it's more that sort of thing.

And those limiters can be tricky; you have to stay ahead of the development of the cars with those, otherwise you run into the problem that, on long straights, you run out of push. You can pull up with the slipstream, but as soon as you pull out, you stall and can't advance any further.

Actually, that's kind of what's happened, in effect, with the change to TCR from TC1 in the WTCR. With that ~75-hp cut, the Dottinger Hohe is actually "too long"; they run out of grunt to actually be able to make the pass; that could end up being an issue along the front side of the circuit at Macau as well.
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Old 4 Jun 2018, 23:11 (Ref:3826872)   #17
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Aren't they restricted on Conrod to c.300kph by virtue of a fixed final drive ratio and the rev limit mandated by VASC? Or have I just made that up/imagined that to be the case?
For whatever technical reason it may specifically be, the fact is the top speed for (V8) supercars has indeed been limited.
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Old 4 Jun 2018, 23:31 (Ref:3826875)   #18
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So it seems chicanes could be the best way to limit top speed, and the cheapest for competitors.
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Old 5 Jun 2018, 03:50 (Ref:3826891)   #19
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So it seems chicanes could be the best way to limit top speed, and the cheapest for competitors.
Not cheap if you make a small mistake - chicane can turn it into a big one. Sometimes chicanes can't be avoided but they're rarely an ideal solution.

Track design overall and vehicle specs also contribute to controlling or limiting speeds - as they have done for decades.
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Old 5 Jun 2018, 03:56 (Ref:3826892)   #20
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THis is old news. Back in the 1970s, Monza had three chicanes added to reduce speeds. Same for Le Mans in 1990.
And Bathurst, with the Chase.
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