Based on a design and plans by Ian Simms, of Greenspeed, with some
minor changes of my own devising. Its name is taken from a bronze age
funerary cart found in a Danish peat bog, around the turn of the
century. Its namesake currently rests in the Royal Museum in
Copenhagen. The trike took first place in its class at the 1997
bicycle concours held at the Lars Anderson Museum of Transportation.
Yes, it is almost as long as a Honda Civic.
The layout with two front and one rear wheel is called "tadpole".
(Two rear wheels and one front is called "delta", and if you have two
wheels in line, with the third on the other side of the seat, you have
a "Coventry"). The two front wheels, using Ackerman steering, result
in excellent stability and great handling. The single driven wheel
eliminates the need for a differential, greatly simplifying the drive
system. Primary braking is by independently controlled disk brakes on
the front wheels. The rear wheel has a caliper brake, which is
operated by the stoker, using a ratcheting control in the handlebar.
Its primary use is as a parking brake, but it is also useful as a
"parental override" when a child is at the controls.