The nine Windows Openers aircraft were the first to arrive over the darkened city. The Mosquitos had been marking the route from the coast for the Main Force bombers, now they began illuminating the target area with bombs and flares. They also dropped Window [aluminised-paper strips] to confuse enemy radar and provided information on weather conditions, particularly wind speed and cloud cover.
Soon after 24 Blind Marker-Illuminators and 62 Supporters arrived. The Blind Marker-Illuminator [aka fire starters] Lancasters were flown by elite crews and carried radar. Their task was to mark the target area for the 800 aircraft of the Main Force; to set out a box in which, if all went according to plan, tens of thousands of people would die. Continue reading