The self-steering aero trailer

[jray3]

This an EV generator trailer for range extension, but he cracked the reverse steerability issue of a short-tongue trailer with ecomodder ingenuity!

Video: EP Tender is a Hitch-Mounted Range Extender

http://www.youtube.com/watch?v=dHzecJGf48I

Skip ahead to 2:54 for the self-steering development vid.
So simple, even an ecomodder could do it!

Building super-short aero trailers with his auto-deploying rear caster steering could be a very nice option...

[BamZipPow]

At least we know why you don't use spring clamps to keep yer guidance sticks in place...