By led and By Air hours every day, including Sundays. One of my floor jobs was to mark on the frame of the 14,000 port gun where the gun sight sat - this had to be exact with a tolerance of one - ten thousandth of a millimetre. The area was measured from a big jig1 which weighed 30 tons. After I made a few of these sight findings, when they started working on the frames, to the exact measurement, they found a considerable error. There was hell to pay and most of it was on my shoulders. I insisted, as well as the inspector, that the measurement was exact. Again a couple of men came from Montreal and found, to my surprise as well as relief, that the 30 ton jig from a set point was made of green steel, and it seasoned and made the error, so I had to get the carriage back and fix up the error. When the Production Manager went to Montreal and took a Sunday off, I was the assistant and had to carry on his work. I figured the learning and experience was of great value in later years, even though I see errors in people who think they know it all. In the 17 months I worked as a fitter, I only got home to Prince Edward Island once. The Production Manager was quite peeved at my leaving Trenton to go into the RCAF after all the time he had spent preparing me to carry on my work, but I think as I look back after all the years since 1942, that all my training helped me to become a Navigator, from my plotting and blueprint reading and marking over the years. I was allowed to attend classes after I went working on the floor, while I could see my other classmates working for $55.00 a month. As a result I got my certificate from the Technical school in Halifax as a Machine Fitter. I often think of those days of fitting when I see the Orthopaedists fixing bones together in a fracture. I. A devicefor holding machine work in place 52