Stab & Fin 
I fell a few years ago on this strange assembly, the result of a creative research longboarder in its fight against the cursed wobble, this " goudoung-goudoung " as we say in Creole, balan this accentuates the lateral vibration, and reduced wrinkling.
Many technical solutions, sometimes disparate, were imagined as the addition to the front of a steering linkage came straight (!) Art motorcycle.
Designers hoped absorb vibrations disturbing by cutting ad-hoc Tail - we note the attempt of the cuts mainly aesthetic or practical to tow the board.
Cauchy David tried to put this phenomenon to theorize equations of physics.
Others have deepened the psychological aspect and prepare the chute to his coming to better anticipate and overcome it.
On this assembly, three universes coexist:
- the
archery by setting a stabilizer on the short side of the truck hanger Independent.
- surfing the
with the fin, and to a lesser extent the processing of the layer of wood under the finish deck.
- the longboard
... which abound that the wheels on the photo.
incongruous This assembly is inefficient:
- fin destined to play a role in hydrodynamic efficiency has no air flow.
- stabilizer located laterally and forwards can not compensate for lateral movement.
I particularly archery, which I practiced for a long time, and which has many similarities with the manufacture of plates: adaptive research between form and function, efficiency of flex, control of twists. .. many skate manufacturers are also factors of high level arcs.
modern uses of arc stabilizers, actually countervailing movement acting in the opposite direction of thrust. They are mounted on a ball moving, have a weight or a pneumatic system for absorption of forces.
One could imagine an application in the slalom with a rocker on the back of the board, to enhance the recovery ... not easy to master!
When the fight against the unwanted vibrations, the "Shimmy ", the " wobble", the " rattle "or whatever you call it, it seems a little" functional clearance "given to the controlled mechanics trucks and bearings reduce its effect Gull wing offers the Stalker, a incorporating dampers truck bushings - based on a patent filed in 2002 by an old backpacker's skate, causing the wheels XT .
advances in this area are also to be found in the area of mountain boarding, where new principles of trucks are being developed.
Finally styles evolve, since races "straight-on position in the egg during the 70's in the downhill skiing, or hangs ... fear or inattention retreating, we drive less tense ... better!
