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Hi, Regular.Stormy, good article. Only thing is I am not quite with you what a 'load transfer moment arm' is (5th para). Do you think you could make that a bit plainer for us simple folk? Thanks. [[User:Dieter Simon|Dieter Simon]] 00:18, 23 Jan 2005 (UTC)

== What should this redistribution of normal force due to inertia be called? ==

I get about equal numbers of Google hits for "load transfer" and "weight transfer" but the first few for "weight transfer" are about car performance, while the first few for "load transfer" are not. So I suggest that this article be merged with "Weight transfer". We still need to say that the main effect is due to inertia but there is some secondary change in the center of gravity. "Load transfer" sounds a bit as though it meant the cargo (people, lugage and gasoline, in a car) shifting.

Anyway, we should keep trying to make it more quickly understandable to a larger readership because that will save lives. Whatever the effect is called, it does kill a lot of people each year. [[User:David R. Ingham|David R. Ingham]] 19:39, 18 February 2006 (UTC)

:I've always referred to it as weight transfer, and so does every car enthusiast I've talked to. I've never heard of it being referred to as load transfer before. I did a quick google search and dug this page up which could be of some use: http://www.ozebiz.com.au/racetech/theory/wttrans.html [[User:Leedeth|Leedeth]] 12:47, 29 August 2007 (UTC)

::These published references all call it '''load transfer''':
::*''Tyre and Vehicle Dynamics'' by Hans B. Pacejka
::*''Motorcycle Dynamics'' by Vittore Cossalter
::*''Motorcycle Handling and Chassis Design'' by Tony Foale
::In fact, Tony Foale is quite explicite:
:::''This is normally referred to as wight transfer, but that is really a misnomer. [long sentence about what weight is] Neither acceleration nor braking can cause this weight to transfer elsewhere. As a result the use of the term 'load transfer' is preferable.''
::Are there definitive references that call it weight transfer? -[[User:AndrewDressel|AndrewDressel]] ([[User talk:AndrewDressel|talk]]) 14:39, 8 August 2009 (UTC)

::::Yes, Gillespie 'fundamentals of vehicle dynamics'. He calls it weight transfer, and doesn't mention load transfer. I'd say the obvious difference is that gillespie is a car and truck dynamicist, where load transfer is far more important than weight transfer, but we all call it weight transfer, except for the SAE who are up themselves. I agree it is a misnomer, but wiki should represent the real world usage, not pedanticisms, I'd have thunk. [[User:Greglocock|Greglocock]] ([[User talk:Greglocock|talk]]) 00:35, 9 August 2009 (UTC)

== Imaginary? ==
Please explain how load transfer is "imaginary". If it were truly imaginary, why is it even worth discussing? As written, I don't think this subject is really separate from [[weight transfer]]. At any rate, it's not using the correct terminology to try to distinguish the two and may reflect a lack of understanding on the part of the author. [[User:Ham Pastrami|Ham Pastrami]] 04:36, 4 October 2007 (UTC)

:The word "imaginary" has been removed. -[[User:AndrewDressel|AndrewDressel]] ([[User talk:AndrewDressel|talk]]) 14:49, 8 August 2009 (UTC)

== Merge proposal ==

It appears that the auto industry (with references) uses ''weight transfer'', while the motorcycle industry (with references) uses ''load transfer'' to describe the same phenomona: ''the measurable change of load borne by different wheels during acceleration.'' For this reason, we propose the intro paragraph should read something like:
:'''Weight transfer''' and '''load transfer''' are two expressions used somewhat confusingly to describe two distinct effects:<ref name="Foale">{{cite book
| title = Motorcycle Handling and Chassis Design
| edition = Second
| last = Foale
| first = Tony
| year = 2006
| publisher = Tony Foale Designs
| url = http://books.google.com/books?id=84hF-qoR5I8C&printsec=frontcover&dq=Motorcycle+Handling+and+Chassis+Design
| isbn = 978-84-933286-3-4
| pages = 9-1}}</ref> the change in load borne by different wheels of even perfectly rigid vehicles during acceleration, and the change in [[center of mass]] (CoM) location relative to the wheels because of [[Suspension (vehicle)|suspension]] complience or [[cargo]] shifting or sloshing. In the [[automobile]] industry, '''weight transfer''' customarily refers to the change in load borne by different wheels during acceleration.<ref>{{cite book
| title = Fundamentals of Vehicle Dynamics
| last = Gillespie
| first = Thomas D.
| year = 1992
| publisher = SAE International
| isbn = 978-1560911999}}</ref> This is more properly referred to as '''load transfer''',<ref>{{cite book
| title = Tyre and vehicle dynamics
| last = Pacejka
| first = Hans B.
| year = 2006
| edition = Second
| publisher = SAE International
| pages = 14-15
| isbn = 978-0768017021
| url = http://books.google.com/books?id=wHlkbBnu9FEC&pg=PP1&dq=Tyre+and+vehicle+dynamics
| accessdate = 2009-03-31}}</ref> and that is the expression used in the [[motorcycle]] industry,<ref name="Cossalter">{{cite book
| title = Motorcycle Dynamics
| edition = Second
| last = Cossalter
| first = Vittore
| year = 2006
| url = http://books.google.com/books?id=rJTQxITnkbgC&printsec=frontcover&dq=motorcycle+dynamics
| publisher = Lulu.com
| isbn = 978-1-4303-0861-4
| pages = 84-85}}</ref> while '''weight transfer''' on motorcycles, to a lesser extent on automobiles, and cargo movement on either is due to a change in the CoM location relative to the wheels.
{{reflist}}
Comments? -[[User:Greglocock|Greglocock]] ([[User talk:Greglocock#top|talk]]) and [[User:AndrewDressel|AndrewDressel]] ([[User talk:AndrewDressel|talk]]) 13:03, 10 August 2009 (UTC),

Talk:Load transfer - Revision history

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