An idea how to get over barrier and tilt the bridge in one

[Dan_Peake]

I like the concept. If I have understood your vision, additional benefits, unrelated to bump crossing, are (i) it could also be configured to drop the bridge, (ii) be used as an extended contact point in the key for fowl point opportunism and (iii) if a motor (ballast) will be at the arm end, the mechanism could double as CG fine tune for balancing.

Dan

[icetalker]

I meant that the wheels be planted 8 in inward on both sides. Also the whole assembly would be longer than 1 foot perhaps. I haven't thought this out completely but i believe there's worth in the concept and it's worth developing by someone.