Avro Lancaster Pr.I

The Avro Lancaster Pr.I was a regular Lancaster Mk.I modified for photographic reconnaissance. Armament and turrets were removed and the nose was reconfigured together with the bomb bay where a camera was placed.
The type was a conversion of a regular Mk.I. A total of approximately twenty of them were converted in 1946. It served with the next squadrons:

•  No.541 Squadron: It served from February to October 1946 when the squadron was disbanded. The Lancaster Pr.I replaced the Gloster Meteor F.3 as this squadron transitioned from the pure fighter role to the reconnaissance squadron.
• No.82 Squadron: In October 1946 they received the Pr.I and served together with the Supermarine Spitfire Pr.19 that was also a reconnaissance variant of the Spitfire. They performed various aerial surveys of Nigeria, Gold Coast, Sierra Leone and Gambia operating from RAF Benson, in Oxfordshire. They were rebased to Kenya in October 1947 and, in 1952 they were rebased back to the United Kingdom to transition to the English Electric Canberra Pr.3. The last Lancaster serving with this squadron was written-off in December 1953.
• No.683 Squadron: The Lancaster Pr.I was assigned to this squadron, together with the Vickers Valetta C.1 on 1st November 1950 when they were re-formed at RAF Fayid, in Egypt. They were committed to survey and mapping the Arabian and East African region. In 1952 they were rebased to RAF Khormaksar, in Aden to cover both Aden and Somaliland. A detachment operated from RAF Habbaniya, in Iraq where they mapped the Persian Gulf area. With their mission complete, they were disbanded at RAF Habbaniya on 30th November 1953.

Sources:

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

2. https://en.wikipedia.org/wiki/No._541_Squadron_RAF

3. https://en.wikipedia.org/wiki/No._82_Squadron_RAF

4. https://en.wikipedia.org/wiki/No._683_Squadron_RAF

5. Signal Squadron - Aircraft In action 52 - Lancaster in Action