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Hour Record Rules Revisted/Revised

From the kilo to the hour record, if it's on the velodrome it goes in here

Moderator: Tonton

07 Jun 2015 21:30

For the record, here is Xavier's full uncropped chart image:

Image
User avatar Alex Simmons/RST
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08 Jun 2015 11:01

It's the same picture dude.
Shame
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Re:

08 Jun 2015 12:05

avanti wrote:http://www.cyclingnews.com/news/air-pressure-and-track-skills-will-be-vital-for-wiggins-hour-record

Brad: “I’m not a weather man, but if you have really low pressure, under 1,000 [grams per cubic metre], you will travel a lot further on the day – anything up to one kilometre for the same power. The weather forecast for the first week in June is abnormally low pressure for London for that time of year, which is fantastic.”

Me: "grams/cubic metre" is density not pressure. Pressure is measured on Pascals (N/m^3). Brad, I hope you and your team use the correct units when setting your ride schedule.


Why do you pretend to be a scientist and then fail to point out that his comment is still relevant due to the fact that a compressible fluid (gas to you) changes its density with the pressure applied to it? Credit where credit is due.
Farcanal
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Re: Hour Record Rules Revisted/Revised

08 Jun 2015 12:41

Observations that may not be of interest to many :) :
1. Brad's time at 4000m. was approx. 4:29 I think;
2. Brad covered the first 16 km. in 17:36.279, about 22
seconds faster than the 10 mile (1609m) road TT he did
in May in his failed bid for Mr. Dowsett's other record;
3.Brad's narrow arm/hand position while improving
aerodynamics, made it a little more difficult to hold
the black line (as everyone who has experimented
with this sort of thing knows :o ).
User avatar oldcrank
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Re: Re:

08 Jun 2015 14:27

Farcanal wrote:
avanti wrote:http://www.cyclingnews.com/news/air-pressure-and-track-skills-will-be-vital-for-wiggins-hour-record

Brad: “I’m not a weather man, but if you have really low pressure, under 1,000 [grams per cubic metre], you will travel a lot further on the day – anything up to one kilometre for the same power. The weather forecast for the first week in June is abnormally low pressure for London for that time of year, which is fantastic.”

Me: "grams/cubic metre" is density not pressure. Pressure is measured on Pascals (N/m^3). Brad, I hope you and your team use the correct units when setting your ride schedule.


Why do you pretend to be a scientist and then fail to point out that his comment is still relevant due to the fact that a compressible fluid (gas to you) changes its density with the pressure applied to it? Credit where credit is due.


There was no need to point out that one goes faster with lower pressure as Brad already said so. I pointed out his incorrect units. Some coaches use different units to predict performance and inputting the wrong units can give false results. By the way I am a professional aerodynamics engineer - my name reflects one of the many aircraft I've worked on.
avanti
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Re: Hour Record Rules Revisted/Revised

08 Jun 2015 17:37

Has Bradley Wiggins really set a new record for the hour? It seems to me that his bike is very little different from Chris Boardman's. It's certainly not like anything you would normally see even in a time trial.
steveh37
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Re:

08 Jun 2015 20:50

Shame wrote:It's the same picture dude.

No, you removed part of the picture which shows who the author of the chart is. Presenting other's material without attribution is poor form.
User avatar Alex Simmons/RST
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Re: Hour Record Rules Revisted/Revised

08 Jun 2015 21:16

steveh37 wrote:Has Bradley Wiggins really set a new record for the hour? It seems to me that his bike is very little different from Chris Boardman's. It's certainly not like anything you would normally see even in a time trial.


The history of the UCI hour record has been of various rules and categories. Between 1940 and the 1990s, there were six simultaneous and different categories of hour record.

Heck, even Neil Stephens held a UCI world hour record at one time (1987) under the professionals / indoor track / below 600m altitude category.

So yes, he's set a new record based on the regulations in force at the time of the attempt. Is it the absolute furthest distance set under UCI regulations at the time of the ride? No.
User avatar Alex Simmons/RST
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Re: Re:

09 Jun 2015 09:27

avanti wrote:
Farcanal wrote:
avanti wrote:http://www.cyclingnews.com/news/air-pressure-and-track-skills-will-be-vital-for-wiggins-hour-record

Brad: “I’m not a weather man, but if you have really low pressure, under 1,000 [grams per cubic metre], you will travel a lot further on the day – anything up to one kilometre for the same power. The weather forecast for the first week in June is abnormally low pressure for London for that time of year, which is fantastic.”

Me: "grams/cubic metre" is density not pressure. Pressure is measured on Pascals (N/m^3). Brad, I hope you and your team use the correct units when setting your ride schedule.


Why do you pretend to be a scientist and then fail to point out that his comment is still relevant due to the fact that a compressible fluid (gas to you) changes its density with the pressure applied to it? Credit where credit is due.


There was no need to point out that one goes faster with lower pressure as Brad already said so. I pointed out his incorrect units. Some coaches use different units to predict performance and inputting the wrong units can give false results. By the way I am a professional aerodynamics engineer - my name reflects one of the many aircraft I've worked on.


The incorrect units belong to the editor/author of the cycling news piece, that's why they are in square brackets
Bumeington
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09 Jun 2015 13:02

Molly Van Houweling said she broke her own record hour in a 'training ride' in LA
(not sure if she meant the 44.173 sea level).
She added that she has sponsors for a July 3 attempt in Agua. Mexico.
Cranking 44.1 led to 45.67 at altitude.
Shame
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Re:

09 Jun 2015 21:31

Shame wrote:Molly Van Houweling said she broke her own record hour in a 'training ride' in LA
(not sure if she meant the 44.173 sea level).
She added that she has sponsors for a July 3 attempt in Agua. Mexico.
Cranking 44.1 led to 45.67 at altitude.

And 45.67 / 44.1 = 103.8%, bang in the middle of the predicted range of improvement in speed of going to altitude:

Image
User avatar Alex Simmons/RST
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Re: Hour Record Rules Revisted/Revised

16 Sep 2016 21:54

The hour record, is a road event. All hour record holders, are Roadie. As far as Wiggins goes, same thing.
This Charming Man
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17 Sep 2016 21:12

So, maybe a 51.5 at sea level effort, if I read the chart right.( I didn't do the math as I'm lazy.)
Shame
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Re: Hour Record Rules Revisted/Revised

22 Sep 2016 06:50

This Charming Man wrote:The hour record, is a road event. All hour record holders, are Roadie. As far as Wiggins goes, same thing.

That's more because the training required to be an effective road racer suits the effort for the hour more than the training for track events does. There's nothing stopping an Omnium, Points race or Pursuit specialist from doing the training and having a shot though.

Actually, if you have a look at how Cam Meyer used to win points races it might not be a bad idea, because there would be some carry over.
User avatar 42x16ss
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29 Jan 2017 15:34

Martin Toft Madsen (DEN) set a new Danish hour record yesterday with his impressive 52.114 km. It was never advertised as a world record attempt but rather an attempt to beat Ole Ritter's old Danish record from the 70's. It happened during Copenhagen's six days event (at Ballerup Arena). Martin Toft says he'd like to target the world record too in the future.
el_angliru
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11 Oct 2017 07:31

Just read that a Dutch cyclist Dion Beukeboom is going for an attempt next year. Would be a huge surprise to me if he even came close. But nice to see people trying!
Winnen
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Re:

12 Oct 2017 21:36

Winnen wrote:Just read that a Dutch cyclist Dion Beukeboom is going for an attempt next year. Would be a huge surprise to me if he even came close. But nice to see people trying!

Some one will beat it eventually, in Mexico.
User avatar Alex Simmons/RST
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