Rigging and Sails

Original mast, booms and spinnaker poles for the OHLSON 38 were supplied by Sparlight from the UK. A nice replacement rig has been done by HALSPARS for a boat in the US. The sizes of rigs were somehow adjusted for the either needs of formulas (CCA or IOR) or demand from owners.
Recent research has allowed us to identify exact rigg measurements which may be helpful for comparison or when masts have to be replaced.
We have been able to lift-off exact sizes for rigs from the original drawings of the boat (sloop rig) between 1968 and 1972: