[Dave Wallace]

The primary target 109 Squadron that night was not Duisburg but the power station at Lutterade Holland. This was the first night Oboe was used operationally. Two of the 109 Squadron Mosquitos did bomb Duisburg as an alternative target after they had failures of their Oboe equipment attacking Lutterade. The Mosquitos reported seeing fires burning "furiously" in Duisburg after leaving their primary target at Lutterade.
109 Squadron always flew a different route to the target than the main force and their operational orders usually stated "Route at the Squadron Commander's descretion". In practice it was worked out by the Navigators. Their bombing run direction was dictated by the Oboe ground stations' position relative to the target. They usually approached the target in a different direction than the main force and were usually 10-15,000 feet higher than the main force.