The demand that Alexander made a tall one.
A very tall one.
Because making arrows was a very specialized job.
Here was in detail how to make one arrow.
First, the wood would be split and cut to the right length and then planed with a flat plane at first, followed by a rounded one. And then the wood would be smoothed with sandstone. A notch would have to be cut at one end for the bowstring and filled with cow horn or deer antler to prevent the arrow from splitting when placed against the bowstring.
Next, the fletcher would whip and fletch the shaft. Whipping was done to wrap a string around the shaft, which was waterproofed to stop it from warping in storage, and then the feathers would be split and applied to the shaft. These feathers would be cut from the quills or turkeys and placed in grooved or notched lines at the back of the shaft and would then be then sealed in with glues based on animal fat.