I have this, perhaps crazy, idea to provide a little more stability (less twitchy steering) when a recumbent is expecting to have to ride slowly in a congested area.
Replace the front wheel with an extended axle, perhaps 1 foot long. Put a wheel on each end of this axle. This would probably work best with 20" front, 26" rear SWB designs.
Yes, in a small radius turn you would be putting a BIG load on the forks as one wheel did all the lifting. This is not meant for small radius turns.
Ever see such a thing? Is it totally crazy?