RE: McMurtry Spéirling takes FOS Hillclimb record
Discussion
Olivera said:
J4CKO said:
Hmm, not so sure to be honest as the Speirling has more power, its possibly a little heavier at a ton I heard, where a current F1 car is a minimum of 798 kilos, in reality probably bit heavier
The Speirling has less power, they've quoted 1000 bhp/tonne and it weighing less than 1000kg, so it makes less than 1000bhp. A 2022 F1 car makes 1000-1050bhp and is also lighter than Speirling.TDK-C60 said:
The footage was impressive and looked almost sped up - but I was also struck by how much stuff was coming out of the back. It had a sort of permanent cloud of hoovered up road behind it. Surely that would not be remotely tolerable on the road!
It must be quite a thing to drive. How does the downforce compare to the T50? Has that been caught on video with a "cloud"?
From reading the Evo article (and you can actually see it in some of the pics), the suction area is only a small proportion of the car's footprint (they describe it as 'bodyboard sized').It must be quite a thing to drive. How does the downforce compare to the T50? Has that been caught on video with a "cloud"?
Common sense would suggest this means that to achieve the downforce figures they're quoting, the amount of suction per unit area must be quite high, which probably accounts for the fact that it's picking up and throwing back much more s
t than even previous fan cars like the Chaparral and BT46.OTOH, it probably means that they can maintain at least a reasonable amount of downforce, at a reasonably consistent level, even when running on the bumpier and less consistent surfaces of public roads. They're also talking about active ride height, so presumably you'll just have a 'road' setting that gives less (but more consistent) downforce and picks up less rubbish when running on the road.
Interesting to speculate that the 'bodyboard' sized suction area would lend itself to cars of a Locaterfield sort of footprint.
The T50 isn't a 'proper' fan car, in that it only uses the fans to manage airflow and enhance the efficiency of the diffuser, rather than create a 'vacuum pad' under the car (anyone who fails to grasp the difference, consider the car at standstill or low speed: the T50's fans will do bugger all except impersonate a hairdrier; whereas with 'proper' fan cars like the Chaparral, Speirling or Areil Atom Aero P, the car will be visibly sucked down on its suspension even at standstill or low speeds).
Equus said:
TDK-C60 said:
The footage was impressive and looked almost sped up - but I was also struck by how much stuff was coming out of the back. It had a sort of permanent cloud of hoovered up road behind it. Surely that would not be remotely tolerable on the road!
It must be quite a thing to drive. How does the downforce compare to the T50? Has that been caught on video with a "cloud"?
From reading the Evo article (and you can actually see it in some of the pics), the suction area is only a small proportion of the car's footprint (they describe it as 'bodyboard sized').It must be quite a thing to drive. How does the downforce compare to the T50? Has that been caught on video with a "cloud"?
Common sense would suggest this means that to achieve the downforce figures they're quoting, the amount of suction per unit area must be quite high, which probably accounts for the fact that it's picking up and throwing back much more s
t than even previous fan cars like the Chaparral and BT46.OTOH, it probably means that they can maintain at least a reasonable amount of downforce, at a reasonably consistent level, even when running on the bumpier and less consistent surfaces of public roads. They're also talking about active ride height, so presumably you'll just have a 'road' setting that gives less (but more consistent) downforce and picks up less rubbish when running on the road.
Interesting to speculate that the 'bodyboard' sized suction area would lend itself to cars of a Locaterfield sort of footprint.
The T50 isn't a 'proper' fan car, in that it only uses the fans to manage airflow and enhance the efficiency of the diffuser, rather than create a 'vacuum pad' under the car (anyone who fails to grasp the difference, consider the car at standstill or low speed: the T50's fans will do bugger all except impersonate a hairdrier; whereas with 'proper' fan cars like the Chaparral, Speirling or Areil Atom Aero P, the car will be visibly sucked down on its suspension even at standstill or low speeds).
Have had to watch it a few times - the speed looked unreal. And I love the size (if not exactly the look). Sportscars are way too wide these days....
RDMcG said:
It is a very impressive achievement.
However, it is very strange-looking to me me and if ,as they say, they are planning a road going version I cannot imagine buying one ( even if I could afford it).
Auto windscreens are going to love the claims once that car hits the streets lolHowever, it is very strange-looking to me me and if ,as they say, they are planning a road going version I cannot imagine buying one ( even if I could afford it).
ettore said:
Cobnapint said:
Astonishing but - is it cheating? All other cars generate down force and thus grip using forward motion.
This uses a built in fan that eliminates that basic requirement.
Not quite playing by the rules is it.
Flame retardant suit ready.
What rules?This uses a built in fan that eliminates that basic requirement.
Not quite playing by the rules is it.
Flame retardant suit ready.
Cobnapint said:
Astonishing but - is it cheating? All other cars generate down force and thus grip using forward motion.
This uses a built in fan that eliminates that basic requirement.
Not quite playing by the rules is it.
Flame retardant suit ready.
Last time there were rules involved these cars were banned. Luckily times and development move on, this is merely a technology demo car. It can't actually race in any series that exists as there isn't one !This uses a built in fan that eliminates that basic requirement.
Not quite playing by the rules is it.
Flame retardant suit ready.
Equus said:
TDK-C60 said:
Common sense would suggest this means that to achieve the downforce figures they're quoting, the amount of suction per unit area must be quite high, which probably accounts for the fact that it's picking up and throwing back much more st than even previous fan cars like the Chaparral and BT46.
.
Gordon Murray said there was no way the BT46 could chuck stones out of the fan.t than even previous fan cars like the Chaparral and BT46..
https://www.motorsportmagazine.com/articles/single...
I don't know why people are talking about how well the fan would work on the road, as it's irrelevant. We simply don't need downforce in road cars. It's great in terms of this track car/engineering exercise, but not really relevant for anything any of us would buy. Imagine the headlines when Doris gets spat off the road because her EV Micra hit a bump and suddenly lost downforce.
Equus said:
It's been there for years. It's rule 5.20.10 in the current RAC Blue Book, but any FIA-affiliated national governing body has to have a similar rule.
In fairness, if you look at the amount of st that the McMurty was kicking up behind itself, you really wouldn't want to run behind one on any sort of circuit racing. I suppose they could relax the rule for hillclimbs and other 'solo' competition, but all it would achieve would be to create an 'elite' class that only a handful of people could afford to compete in.
RAC Blue Book? What decade are you living in? In fairness, if you look at the amount of s
t that the McMurty was kicking up behind itself, you really wouldn't want to run behind one on any sort of circuit racing. I suppose they could relax the rule for hillclimbs and other 'solo' competition, but all it would achieve would be to create an 'elite' class that only a handful of people could afford to compete in.KarlMac said:
foxbody-87 said:
WCZ said:
That’s the one. That spec sheet says 1100hp though, but the stick on letters said 3000. It’s also worth £1.75 million though according to that.Alcohol Funny cars/dragsters around 4000 bhp
ruairi50 said:
Its a SNOREFEST at this stage when 5 of the top 10 cars are Glorified Milk Floats. EVs should have their own
Hillclimb. PISS BORING
I thought the McMurtry was the most exciting thing that went up, had years of stuff making noise, going sideways and making smoke, which is all great and will continue but this is progress. The Ford Supervan and the Electric Porsche were also pretty impressive.Hillclimb. PISS BORING
And the childish "Glorified Milk Float" sub Daily Mail comments section stuff, turn it in or come up with something you though of yourself. I have no particular urge for an EV, I will personally stick with noisy ICE stuff as long as I can but I dont feel the need to come out with claptrap like that, just makes you sound a bit scared and not very original. Could call any ICE car a glorified Lawn Mower, scaled up dump truck or whatever as they are about as close as a lead acid powered 25 mph milk delivery vehicle.
Maybe "worlds fastest mobility scooter" or Batmans Hoover ?
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