Update 2015-03-01: by popular demand, IGES files for the top and bottom bulb mould. Use at your own risk.
Our bulb moulds are CNC milled from aluminium and more than 15 bulbs have been made successfully from them.
Note that it could be useful to make the hole through which lead is poured in a little larger than shown on the plan.
Continue reading IOM Bulb Mould plans
Charles Detriche has kindly allowed me to publish one of his IOM designs. This one is called "Sliver".
Update 2006Dec07: Sliver hull in IGES format
Charles Detriche has kindly allowed me to publish one of his IOM designs. This one is called "Arrow".
Update 2006Dec07: Arrow hull in IGES format
Update 2011 March 16: By popular demand, forward and aft 1:1 sections for printing on A4 paper: arrow_fwd_shadows_2011mar16 and arrow_aft_shadows_2011mar16.
Update 2015-03-01: some source-files for this drawing:
See also update from 2004: IOM Mainsail geometry.
The various sail measurements from the IOM class rule illustrated in a drawing. Prints all three rigs on one A4 paper.
A diagram showing the measurements needed when building a set of IOM rigs. The table shows measurements taken from rigging guides and plans by world champions in the class: Craig Smith (New Zealand 1997), Graham Bantock (France 1994 and Malta 1999) and Martin Roberts (Croatia 2001).
Weights for the Italiko which I sailed at the 2003 IOM World Championships in Vancouver Canada.
The Noux is the latest Finnish IOM being built during 2002-2003. Construction plan showing a flat deck. A cockpit/fordeck design is being worked on...
A rig plan based on rigging notes by Martin Roberts. Could be considered a little old my modern standards, i.e. high shroud attachment point and simple round booms.