## Plan view = view from above?

I'm guessing that a plan view is the view from above? Thanks --Badger151 15:31, 18 September 2006 (UTC)

Yes. We usually say front elevation, side elevation, plan view for a building, front view, side view, top view for a suspension, but that is not a fixed rule.Greglocock 23:39, 18 September 2006 (UTC)

## Toe Bar

What is the point of the toe adjustment bar? Three points are the minimum to define a plane. The pair of links for the upper and lower "control arms" are required for stiffness/compliance I assume, but wouldn't that be more than sufficent to control the wheel movement?

I think you mean the toe link, or tie rod. In general it allows us to steer the wheel as it moves vertically, typically by very small amounts. Often suspensions are designed with extra links in, these rely on deflection in the bushes in order to let the suspension move. Greglocock 04:30, 9 October 2006 (UTC)
The above answer is blatantly incorrect. Sorry, suspension is not designed with "extra links." It does however rely on bushing compliance in some instances. A good example is during roll with a 4 link beam axle. Theoreticaly, if the links only constrained the distance between the mounting points, there would be no binding and no deflection of the bushings or bearings. However, in most cases, these links utilize round bushings at the mounts. This means not only is the distance between the mounts constrained, they are also "constrained" so that they remain at the same angle relative to each other. Obviously when the car is rolling, the angle between the axle and the sprung mass changes, and thus the angle between the mounting points changes. In order to accomodate this, the bushings must be able to deflect a certain amount to prevent binding.
"The above answer is blatantly incorrect. Sorry, suspension is not designed with "extra links."" Yes they are. For example the Opel STA suspension worked very well for many years, in the sort of awful way that semi trailing arms do. Lotus added an extra link to tidy it up. Or as another example, the Ford Falcon rear suspension use 4 parallel longitudinal links. Strictly speak only 3 were necessary, since the watts link provided lateral location. Your other post is full of tripe as well. Enjoy. Greglocock (talk) 22:27, 17 April 2011 (UTC)

I'm looking for somewhere to add a description of a 'top link', which I would describe as being like an upper wishbone, but with only one arm! Racing cars of the 1960s or thereabouts often had a rear suspension set up of a lower reversed wishbone with two radius rods and a single top link: I guess this could also be defined as a multi-link suspension, albeit a rather crude one, since without any means of accurately computing the effects of the different suspension members control would have been, erm, basic at best. Is this an appropriate place to cover this? 4u1e 22:27, 28 April 2007 (UTC)