The plans for the various Goose versions show timber spars.
Some have contacted me asking about using aluminium tubing.
I do like the timber spars because they look nice. But you can save a bit of weight on the yard by using an alloy tube.
Brad Hickman did all the work on this and with a suitably modified boat derived from the OzRacer went on to win the PDRacer worlds. Six months after (???) there was an anonymous challenge to the legality of his boat. So it was measured and was found to be class legal. His boat is the one in the pic.
Here are his spar dimensions
|Alloy Spar option for Oz Goose|
|Spar||Diameter ins||Diameter mm||Wall thickness ins||Wall thickness mm||Alloy|
1/ I do think the mast will look much less nice than the timber version which has a classic taper.
2/ We do have a nice timber box boom design now. Contact me for details or see the “files” section on the Goose Facebook group.
And just for general fun, here is Brad using the spars to motor upwind in his OzRacer derived boat using the Aluminium spars.