Igdlorssuit: Free Plans for the Boat Before Anas Acuta
by Bryan Hansel
The Anas Acuta's lines were originally developed from a kayak built by Emanuele Korneiliussen in Igdlorssuit for Kenneth Taylor in 1959. This kayak was measured and drawn by Duncan Winning in 1964 and those measurements have appeared in several places on the Internet. I had originally provided the lines of this Igdlorssuit kayak in a HULLS file, but now that FREE!ship is available, I've reentered the lines of this kayak.
Because FREE!ship is much more flexible than HULLS this version of the kayak is much closer than the previous computer version of the boat. Some fairing of the kayak has been done, because the lines or measurements that I had didn't result in a fair boat. I've included markers in the file for you to see how the lines I've faired compare to the measurements taken in 1964.
Building This Kayak
FREE!ship can develop the plates required for plywood stitch and glue building, so if you want to build this kayak out of plywood, it should be easy for you to do so. Just go to tools and then develop plates and you should be able to print out the plans. It's a very low volume kayak, so you may want to play around with the design until it is closer to normal modern kayaks or not.
- Design length : 16.543 [ft]
- Length over all : 16.543 [ft]
- Design beam : 1.745 [ft]
- Beam over all : 1.713 [ft]
- Design draft : 0.400 [ft]
- Mainframe location : 8.272 [ft]
- Water density : 63.989 [lbs/ft3]
- Appendage coefficient : 1.0000
- Displaced volume : 3.083 [ft3]
- Displacement : 0.088 [tons]
- Block coefficient : 0.3735
- Prismatic coefficient : 0.5241
- Wetted surface area : 16.891 [ft2]
- Longitudinal center of buoyancy : 7.758 [ft]
- Vertical center of buoyancy : 0.267 [ft]
- Mainframe area : 0.449 [ft2]
- Mainframe coefficient : 0.7126
- Length on waterline : 13.112 [ft]
- Beam on waterline : 1.574 [ft]
- Waterplane area : 13.452 [ft2]
- Waterplane coefficient : 0.6518
- Waterplane center of floatation : 7.864 [ft]
- Entrance angle : 6.624 [degr.]
- Transverse moment of inertia : 1.898 [ft4]
- Longitudinal moment of inertia : 110.92 [ft4]
- Transverse metacentric height : 0.882 [ft]
- Longitudinal metacentric height : 36.242 [ft]
KAPER
Kaper run for above hydrostatics.
Download Free Kayak Plan
The plan is in FREE!Ship format, and can be viewed with a free copy of the program, which you can download at FREE!Ship. The file is zipped.
Igdlorssuit Kayak Plans: This set of plans isn't ready for building, but it has a deck. The keel line is also slightly different than the drawings.
Updated and Developable Plands for Building: This updated (10/2006) file is much closer to the drawings than the last version. This is as close as I can get it with my skills and FREE!ship. The interesting thing is that very little fairing needed to be completed and by modeling to the drawing the boat became completely developable. No deck is included in this version.
Building Ken Taylor 1959 Kayak - the Igdlorssuit: Bryan's building a new kayak. This is a replica of a kayak built for Ken Taylor in Igdlorssuit, Greenland in 1959. Originally built skin on frame by Emanuele Korneiliussen. Lines taken in 1964 by Duncan Winning formed the basis for the Valley Anas Acuta. This outlines the rational and decisions made to choose and start to build a new kayak. Included is good advice from several people who have paddle one or more of the traditional kayaks on the short list.