Leonardian Mobile Bridge

The drawing of the Mobile Bridge with a Parabolic Profile is found on sheet 855 recto of the Atlantic Code. It is the best known of the many civil or strategic bridges conceived by Leonardo in his drawings. The trellis structure is made stable by a counterweight that, through tie rods, moves the center of gravity on the rotation pin planted on the ground. In modern times, similar solutions have been adopted for the construction of various large structures, such as bridges or barriers to stem tides and strong waves, during storms with the advantage that they can be quickly put into operation when needed and be withdrawn, making the section concerned navigable again. The model uses three types of wood; Walnut, Birch and Poplar, according to the construction needs. Even if complex, assembly is easy, thanks to the modular construction described in the instructions.

Dimensions 45 x 9 x 18 

320 Grams No. of components 57

in