[Fot] Spiitfire rear springs

[Hugh Barber]

Ed,

We are talking about swing axles.  The connection between the hubs and 
the axles are fixed (there is only a u-joint on the inner end of the 
axles).  Therefore, when you de-arch the spring, you get more negative 
camber.

Hugh Barber


On 3/31/2012 06:00, EDWARD BARNARD wrote:
> .....
> Perhaps all the engineering degrees are getting in the way of common sense, or
> vice-verse.  If the distance between the eyelets on the spring are X, wouldn't
> de-arching (flattening out) the spring spread the eyelets further apart
> (straightening out a curve)? Wouldn't this move the top of the vertical links
> out farther? Wouldn't that add positive camber? We know we de-arch to add
> negative camber (we have all seen it happen), but my mind keeps asking why it
> doesn't go more positive. My son, who is also a Aerospace Engineering student
> at UTA, and I have put pencil to paper together and come up with the tops of
> the links moving outward. but nature is contradicting us.
> Some incite please.
> Thanks
> Ed Barnard