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View Full Version : Hoop Pine for Mast? Port Issac Lugger



markhood01
02-20-2012, 08:07 PM
Hi,

I'm just wondering if anyone has used Hoop Pine to make an unstayed mast before? It's for a 14ft6 Port Issac Lugger.

http://forum.woodenboat.com/showthread.php?129652-14ft-6-Port-Isaac-Lugger-Paint-Epoxy-Varnish

If not, what wood would you suggest (we're in Australia)? The mast will either be solid laminated or made using the hollow birds mouth joint method.

Cheers,
Mark

m2c1Iw
02-20-2012, 08:21 PM
I used Hoop for the unstayed birdsmouth mast on my Coquina 16' it has similiar properties to Douglas Fir (Oregon) and is easier to work with. Hoop was recommended by Duck Flat Wooden Boats so that was good enough for me, they keep 6m lengths of select grade or did at the time.
Cheers
Mike

http://farm7.staticflickr.com/6021/5936849230_91d0b42cd5_z.jpg

WX
02-21-2012, 03:48 AM
I think it would be fine. I used Oregon for my birdsmouth mast but I would have used Hoop if I had had it.

purri
02-21-2012, 03:59 AM
Excellent choice, might I suggest as a hollow mast/spar if above 15 foot long.

Duncan Gibbs
02-21-2012, 04:11 AM
Andrew Denman uses Hoop for all his masts. Good stuff!

Wooden Boat Fittings
02-21-2012, 04:32 AM
Hoop pine is the Australian tree Araucaria cunninghamii. I used a sister timber, the Brazilian parana pine (A. angustifolia) for the frame of a canvas kayak over fifty years ago. The kayak is still seaworthy. On that basis I'd have no hesitation in using hoop pine for a mast.

I guess that makes it unanimous. :)

Mike

JayInOz
02-21-2012, 05:20 AM
[QUOTE= I used a sister timber for the frame of a canvas kayak over fifty years ago. I guess that makes it unanimous. :)

Mike[/QUOTE]

I'd guess that makes you really, really old Mike:) JayInOz

m2c1Iw
02-21-2012, 05:59 AM
Who said this forum is too serious.......:D

Wooden Boat Fittings
02-21-2012, 06:08 AM
Cheeky young pups.... :D

WX
02-21-2012, 06:26 AM
Andrew Denman uses Hoop for all his masts. Good stuff!
I'm getting my halyard blocks off him (Barton ball bearing blocks).

Sayla
02-21-2012, 08:43 AM
I've not done it.....but I think I will - when you think about it, clear hoop is kind of just right for masts - high bending strength for it's weight, and if it's not soaked it'll last well

It's not easy to get really long lengths clear, but select grade should provide enough meat to mill out smaller sections that are clear

sayla

markhood01
03-01-2012, 12:22 AM
Unanimous indeed!! Thanks for the info. Stay tuned for the next round of questions!! :)

Cheers,
Mark

markhood01
03-01-2012, 12:48 AM
More questions:

We haven't used any fasteners along the length of the strakes. It's joined using a 20mm overlap and epoxy.

A friend who is a carpenter and has some experience building boats insists that we need to use fasteners along the length of the boat to avoid failure. Or at lease to limit the failure to one section of the boat...

So... What fasteners should we use? Rivets? Screws? Bolts? Something else?

What spacing should we use? the boat is 14ft 6inches.

Cheers,
Mark

m2c1Iw
03-01-2012, 01:04 AM
Hmm.....I believe it is widely recognised that an epoxy glued lapstrake hull does not need fasteners having said that copper nails and roves at about six inch spacing will give it a nice traditional look and keep your friend happy. :d