These walk-around photos were taken at the RAF Museum London in Hendon in 2019. They show an Avro Lancaster B Mk I, serial R5868, known as "S-Sugar" — one of the most celebrated aircraft of the Second World War and among the most significant in the museum's entire collection. Designed by Roy Chadwick as a development of the troubled Avro Manchester, the Lancaster became the backbone of RAF Bomber Command from 1942 onwards, capable of carrying the heaviest bomb loads of any aircraft in the European theatre. On average, a Lancaster's operational life expectancy was just 21 sorties; R5868 flew 137. Entering service in 1942, R5868 first flew as "Q-Queenie" with No. 83 Squadron before joining No. 467 Squadron RAAF in September 1943, recoded PO-S. In May 1944, having become the first RAF heavy bomber to complete 100 operational sorties, Hermann Göring's infamous boast that no enemy aircraft would fly over the Reich was painted defiantly on the fuselage. The names of the 467 Squadron pilots who flew her are inscribed on the engine cowlings. After the war R5868 was preserved at RAF Scampton before eventually making its way to Hendon, where it has been on public display since the museum opened in 1972.