Avro Lancaster Mk.I - British Users part six

The Avro Lancaster had a long unobstructed bomb bay, which allowed it to carry the largest bombs used by the Royal Air Force and oftenly they were supplemented by incendiary bombs. The Lancaster became one of the most famous and successful night bomber of the World War II as the Lancasters alone delivered 608.612 long tons of bombs in a total of 156.000 sorties. It was a versatile aircraft that also took part in some day precission bombing missions like when some of them were adapted to carry the Grand Slam bomb making it the largest payload of the war.
The squadrons covered in this post are:

• No.101 Squadron: This squadron replaced their Vickers Wellington by the Avro Lancaster in 1942. The Lancasters were later equipped with the top-secret radio jamming system Airborne Cigar (ABC) with a crew that could understand German, some of them with German or Jewish background known as "Special Operators" or "Spec Ops". They sat down at the rear of the aircraft, behind a curtained area, located and jammed German fighter aircraft communications, sometimes posing as German operators to spread disinformation. As this squadron had to deliberately break the radio silence procedure, their aircrafts were easy to track and vulnerable too. That made the squadron to have one of the highest casualty ratio of all the war. In October 1945 they were based to RAF Binbrook, in Lincolnshire and their Lancasters were replaced by Avro Lincolns. 
• No.149 (East India) Squadron: This squadron replaced their Short Stirlings by the Avro Lancaster late in the war, in August 1944. They continued their bomb runs until the end of the war and they took part in the Operation Manna dropping food supplies on the Netherlands to help starving civilians. After the war they continued to be part of the RAF Bomber Command with the Avro Lancaster until February 1949 when they were rebased to RAF Mildenhall, in Suffolk and the Lancs were replaced by Avro Lincolns.

Sources:

1. https://en.wikipedia.org/wiki/Avro_Lancaster

2. https://en.wikipedia.org/wiki/No._101_Squadron_RAF

3. https://en.wikipedia.org/wiki/No._149_Squadron_RAF