Gentlemen,
Those of you who have read Peter Forbes recent postings will know of the engines we collected last weekend, I am now the owner of a, modified for test work, Petter W1. It looks to me like the bottom half of a Petter A(1) but with a barrel and head, not hopper, for water cooling. The reason I ask is that I'm wondering if there is any difference from an air cooled engine as I will acquire one to obtain the few parts missing. My Idea eventually is to reconnect it to a Dynamometer that I now have.
Martin P