Ackermann compensation for tadpole trikes- how to work Peter Eland's spreadsheets I am building tadpoles trike with "dual crossed drag link" type steering, and having been using the spreadsheets below to get the Ackermann compensation right.  I am however not really sure how to get best results. If anybody uses these, or had a more up to date/simpler resource to point me to, do let me know!

http://www.eland.org.uk/steer_download.html

I am also familliar with the much simpler "point your control arms at the rear wheel", but I am not sure how to apply it to a tadpole trike with drag link steering.

Thanks!

Edit:  Here's a picture of the Dual Crossed Drag Link configuration.

From (http://forum.atomiczombie.com/showthread.php/5192-Crossed-Dual-Drag-Steering)
The story about pointing to the center of the rear axle is valid but sometimes you have to set the ackermann a bit of in the positive or negative direction. In my setup the full ackermann works fine.

You might be able to solve your problem by making an animation of the setup so you can see the angle that the wheels are making when you turn the handlebar. I tried but I did not succeed in it.