shaped blade 528 has grooves cut into the back side of blade face 514 when the two l shaped blades are positioned back to back these grooves form air channels running from interior bottom 526 to the ports 522 located in the rounded blade tip 520 sides 512 seal these channels lateral side gap 513 may be sealed by welding or by resin fig2 depicts the blade clamps which secure air combs 510 to the wheel hub assembly angles 612 correspond to angles 316 fig1 and 20 and angles 416 fig2 22 blade clamp 610 fits over the edges of air comb 510 screws inserted through holes 614 correspond to holes 518 in air comb 510 and holes 424 in outer wheel hub 410 in addition the method of decortication described in this disclosure provides a suitable means for constructing a highly efficient and effective decortication machine capable of achieving the rapid throughput capacities required to economically operate said decortication machine in cooperation with modern forage or combine harvesting equipment as well as equal or exceed the throughput of modern stationary decortication systems there are undoubtedly numerous modifications and arrangement of parts that may be construed from this invention the previous description provides guidelines for building and operating this invention and is not meant to limit the operation of this invention in so far as potential modifications and arrangements relate to the following claims consistent with the description herein and the appended drawings some features of exemplary embodiments include 1 a variable throughput decortication machine possessing a unique decortication element which.