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Ratliff
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« on: May 30, 2008, 08:50:09 PM » |
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The formula I have is N = W x V x T / 270 where N is the power required, W is the weight in kilograms, V is the speed in kilometers per hour, and T is the rolling resistance of the tire.
The factors are
T = 0.015 on concrete
T = 0.025 on crushed rock/asphalt
T = .05 unpaved dirt road
T = .10 dirt field
The estimate for T on wet salt at Bonneville is .04 to .05
This is an older formula but should still give useful results.
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dwarner
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« Reply #1 on: May 31, 2008, 08:07:34 AM » |
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"This is an older formula but should still give useful results."
To a question not asked.
DW
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Ratliff
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« Reply #2 on: May 31, 2008, 08:11:39 AM » |
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"This is an older formula but should still give useful results."
To a question not asked.
DW
Responded to by a person who doesn't know there are multiple formulas for calculating rolling resistance. |
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dwarner
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« Reply #3 on: May 31, 2008, 08:47:46 AM » |
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Pressing ignore again.
DW
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John Noonan
Hero Member
 Offline
Age: 45
Location: 6 X 200 club member: El Mirage 2 Club, Bonneville 2 Club, Australia 2 Club, Maxton, 2 Club, Mojave 2 Club, Bubs 201 Club
Posts: 3306
245 200+ mph time slips. 252 mph on a dirtbike
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« Reply #4 on: May 31, 2008, 01:43:04 PM » |
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Pressing ignore again.
DW
Dan all you have to do is resist the "desire" to press the ingnore feature and after a day or so it will be very easy.  and this is all you will see " This user is currently ignored." J |
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On 9-27-08 we lost a great friend and fellow racer, he was the BEST, he helped anyone with anything at anytime. His name is Dave Owen and he will be missed by all that knew him and I am glad to have met him.
Seeing him at Bonneville during 2008 Speedweek was the tops, Dave was in awe of the salt and as usual was there helping out anyone who asked..simply put we lost a great man who will be missed by all.
J
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John Noonan
Hero Member
Offline
Age: 45
Location: 6 X 200 club member: El Mirage 2 Club, Bonneville 2 Club, Australia 2 Club, Maxton, 2 Club, Mojave 2 Club, Bubs 201 Club
Posts: 3306
245 200+ mph time slips. 252 mph on a dirtbike
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« Reply #5 on: June 02, 2008, 10:23:29 PM » |
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Pressing ignore again.
DW
Dan all you have to do is resist the "desire" to press the ingnore feature and after a day or so it will be very easy. and this is all you will see " This user is currently ignored." J 15 now... |
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On 9-27-08 we lost a great friend and fellow racer, he was the BEST, he helped anyone with anything at anytime. His name is Dave Owen and he will be missed by all that knew him and I am glad to have met him.
Seeing him at Bonneville during 2008 Speedweek was the tops, Dave was in awe of the salt and as usual was there helping out anyone who asked..simply put we lost a great man who will be missed by all.
J
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John Noonan
Hero Member
Offline
Age: 45
Location: 6 X 200 club member: El Mirage 2 Club, Bonneville 2 Club, Australia 2 Club, Maxton, 2 Club, Mojave 2 Club, Bubs 201 Club
Posts: 3306
245 200+ mph time slips. 252 mph on a dirtbike
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« Reply #6 on: June 03, 2008, 12:10:33 AM » |
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Updated 16 now...wow
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On 9-27-08 we lost a great friend and fellow racer, he was the BEST, he helped anyone with anything at anytime. His name is Dave Owen and he will be missed by all that knew him and I am glad to have met him.
Seeing him at Bonneville during 2008 Speedweek was the tops, Dave was in awe of the salt and as usual was there helping out anyone who asked..simply put we lost a great man who will be missed by all.
J
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Dr Goggles
Hero Member
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Age: 161
Location: Melbourne Australia
Posts: 1764
The Jarman-Stewart "Spirit of Sunshine" Bellytank
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« Reply #7 on: June 03, 2008, 12:36:41 AM » |
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make that 17
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salt27
Sr. Member
Offline
Age: 55
Location: S.W. Orygun
Posts: 322
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« Reply #9 on: June 03, 2008, 12:58:15 AM » |
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Updated 16 now...wow
John, I stand corrected. Don |
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panic
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« Reply #10 on: June 03, 2008, 08:14:13 AM » |
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Slowly it dawns on me.
Posts here are evaluated as follows:
1. peer rank of author: 99%
2. accuracy or factual content: 1%
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John Noonan
Hero Member
Offline
Age: 45
Location: 6 X 200 club member: El Mirage 2 Club, Bonneville 2 Club, Australia 2 Club, Maxton, 2 Club, Mojave 2 Club, Bubs 201 Club
Posts: 3306
245 200+ mph time slips. 252 mph on a dirtbike
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« Reply #11 on: June 03, 2008, 11:16:35 AM » |
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18 now
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On 9-27-08 we lost a great friend and fellow racer, he was the BEST, he helped anyone with anything at anytime. His name is Dave Owen and he will be missed by all that knew him and I am glad to have met him.
Seeing him at Bonneville during 2008 Speedweek was the tops, Dave was in awe of the salt and as usual was there helping out anyone who asked..simply put we lost a great man who will be missed by all.
J
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ddahlgren
Global Moderator
Sr. Member
Offline
Location: Mystic,CT
Posts: 272
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« Reply #12 on: June 04, 2008, 02:16:37 PM » |
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ROTFLMAO....  Will it go up yet again?  |
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Blue
Sr. Member
Offline
Age: 50
Location: Sparks, NV
Posts: 374
Don't guess, TEST!
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« Reply #13 on: June 04, 2008, 05:36:24 PM » |
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Slowly it dawns on me.
Posts here are evaluated as follows:
1. peer rank of author: 99%
2. accuracy or factual content: 1% I think those ignore buttons are being pressed by racers and builders. The person they're ignoring is neither.  Personally, I expect that my own peer rank in this group should be low until I have some of my work actually running down the salt or dirt. I have seen less than one in ten posts of the nearly 200 he has deluged us with in one week be both applicable to topic and not obsolete. That's a lot of good posts, but it's just too many bad ones. Right now, he's creating a massive percentage of the traffic on this site and devoting that space to (for lack of a better term) spam. I tried to put up with it, but now I'm #18. |
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"Doing the same thing as everyone else insures the same result", Shawn Fischer
"Extraordinary ideas do not come from ordinary thinking", Dan Bond
"Don't compromise, optimize", Eric Ahlstrom
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panic
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« Reply #14 on: June 04, 2008, 09:41:04 PM » |
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I'd like to know more about the motivation behind the public display of righteous indignation "I pressed the ignore button".
This is, of course, the exact opposite of ignoring him, but instead commenting on him rather than his post.
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