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Author Topic: Stability  (Read 9433 times)

RhysN

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Re: Stability
« on: 09 July 2019, 03:59:07 pm »
Yes, that's normal that the deflection does that with a more heavily arched spring, I'm unsure about the flatter ones. In the days when the inspiration cars had this sort of springing there were a number of methods to either make use of the characteristic, or do the best negate the effects. Options were; sliding trunnions, shackle at the front or rear, or both with control linkages, and I'm sure there were other options.
While it's an interesting exercise, somewhere along the line the "science" might become baffling :)
Looking a bit closely at the side elevation video I wonder if your shackle is actually hitting the frame and then something else happens. The shackle should be only angled back a little to allow full travel, but not so much that it goes into forward of vertical on droop.
It also looks as though it goes into negative castor to me. Your still photo seems to confirm that.
Now contemplate what is trying to happen in roll!
« Last Edit: 09 July 2019, 04:05:27 pm by RhysN »