- 'Displacement Redoo'
Put Anhinga's lines in Hull Designer. Besides enabling
greater precision over Plyboats, it taught me something by
giving a different set of returns on Anhinga's static
The 2400 lb boat came back the same 1450 ft. lb torque. The
lighter, 1500 pound boat, isn't nearly so close anymore at
975 ft. lb. Crudely, adding about half again the weight
resulted in about half again the added righting force. Again
though, it's an underestimate because of the zero ballast condition.
Built in 3/8ths and ready to roam, Thomas, a 1799 pound
Anhinga has 1153 ft. lb, still pretty close to a 1/4" one;
yet say a helpful 20% improvement.
BTW the boat's prismatic coefficient is .62. The D/L's about
a hundred. Call mine 'Slipper.'
Hull's three files are in the Anhinga folder at Bolger2.
Thank you GHC.
- On Sat, Oct 10, 2009 at 6:53 PM, nonews35 <nonews35@...> wrote:
>The Sandy Bottoms is the only Anhinga built that I have heard about.
> Have any Ahingas been built except the Sandy Bottoms one? Is the hull the same as BirdWatcher of is it slab sided? I'm looking to go with something like that or maybe a Martha Jane.
> Also, I like the idea of a lateen rig also like Zephyr so you can tow the boat to the nearby launch ramp fully rigged it the mast is short enough. Any ideas? I think you could make the mast 11' long and still be OK most places. The Zephyr mast is only 9' the Martha Janes is a bit too high.
The Anhinga is a remarkable design in that it is a spare, simple,
'big' boat. I think it might make sense if what you want is a very
easily achieved (quick build) trailerable 'oar power auxillary' camp