Oh, I built that river cane arrow more as a novelty rather than a serious arrow. I regularly shoot and hunt with Port Orford cedar arrows. In building a couple of river cane arrows, I think that I was just trying to figure out how Native Americans made their arrows out of river cane. And I am pretty sure that was basically what they used in this area back in the day.
But those are dyed turkey wing feathers on that arrow! 5 inch helical 3 fletch. Feathers bought at an archery shop. Have never die cut my own turkey feathers. But you are right - they do look like plastic vanes in the picture.
You would be surprised how accurate a bare shaft is out of a well tuned center shot (or close to center) bow. In fact that is how many archers tune their bows. They test shoot bare shafts and adjust the brace height and nocking position until the bare shaft arrow flies true without fishtailing or porpoising. Then after tuning with the bare shafts the fletched arrows will be that much more accurate.
There is several things going on with my river cane arrow in the picture that is not readily apparent to the eye. For one, it is a footed arrow. It has a hardwood section in the fore shaft that is glued into the hollow river cane that accepts the metal point. While I am sure that Native Americans did not fool with footed arrows, I did it just for the heck of it. They probably just tied their point into the river cane with sinew and glued it up with hide glue.
Also, the nock on that arrow is a little different than what I think that N.A. would have had. It is not a self nock, rather it is a nock that I whittled (which was a real pain) from hard wood and glued into the hollow river cane and sinew wrapped to strengthen it. And I am sure as heck don't think that N.A. did it that way. Rather, I am sure that they simply notched behind a node in the river cane for a self nock. And that would have been their arrow nock. Dumb me.
That is interesting that you made arrows out of red cedar. I am not sure that red cedar would be straight grained enough for arrows. By the way, red cedar is not a true cedar, rather it is a juniper.