Thank you Tony.
That is basically how I made the sprit on my first build. My home made 12' lathe worked ok, but mine was REALLY dangerous. I had hole drilled a couple chunks of 2x4 to support the length. I hadn't been able to engineer any type of wheel system to support the middle. I figured if things went bad the 2x4's would keep the sprit from killing me at least. And then from those support 2x4's got the idea for the bottomless hole saw!
I am not saying this method is safe, but compared to wrapping a piece of sandpaper around a spinning 12' long piece of wood.... The problem with this technique is that it doesn't true up the wood like a proper lathe would. I am making the bowsprit a touch undersized because of that. And I am planning on wrapping it in the fiberglass sock that bbc sells for added strength.
I ordered plans for long hollow sculling oars. I really hope this works for them as well. And I have gotten soooo spoiled by Amazon. I ordered the plans over the weekend (not from Amazon) and they haven't even been shipped yet!!!
Chris "who is not patiently waiting for oar plans." and "who stole this way of signing his posts from "Dougster"".

Completed Danny Greene "Chameleon" a 10 1/2' nesting/rowing/sailing dinghy. Building an Alexa's Rocket 15 w/ optional retractable spinnaker pole.