A method and system is disclosed for managing and implementing a plurality of network policies in a network device. Further, as two-dimensional data can be decomposed to one-dimensional bases, the problem of wiring for two-dimensional parallelizing in a convolution arithmetic unit can be solved. In one embodiment the shape of the sheet sail and frame are triangular with one or two propeller drives being mounted in close proximity to each of the three vertices. The first axis and the second axis may lie in a common plane or otherwise be close to one another to provide a large range of possible angular motion.