From January 1941 to June 1943, Tholthorpe underwent maintenance to upgrade to Class A standards, with three intersecting concrete runways designated main 10-28 at 2,000 yards, 06-24 at 1,430 yards and 16-34 at 1,400 yards.
No. 434 Squadron, flying Halifax bombers, was formed and headquartered at Tholthorpe airfield from June 1943 until the squadron was moved to Croft. In July 1943, 431 Squadron moved to Tholthorpe airfield from Burn. It was later moved to Croft airfield as well. Not only were the operational squadrons quartered here, also their service echelons, -respectively Nos. 9431 and 9434 Service Echelon[1]- which were formed from the ground crew of nos. 431 and 434 Squadron on 3 November 1943 and who moved with their squadrons on to Croft in December 1943.
In December 1943 No. 420 and No. 425 Squadrons (together with their service echelons, nos. 9420 and 9425 Service Echelon[1]) were moved to Tholthorpe airfield from Dalton and Dishforth respectively. These squadrons had returned from service with Vickers Wellingtons in North Africa, and it took them several weeks to work up on the newly acquired Halifax bombers. They were therefore unable to fly their first raids from Tholthorpe until mid-February 1944.
No. 420 Squadron flew 160 operations from Tholthorpe airfield and lost 25 Halifaxes. No. 425 Squadron flew 162 operations from Tholthorpe airfield and lost 28 Halifaxes. In all, 119 Halifax bombers were lost from Tholthorpe.[2] In April and May 1945 Nos. 420 and 425 Squadron converted to Avro Lancasters, which they took with them when they left for RCAF Debert, Nova Scotia, Canada in June 1945.[3]
In the 1980s the airfield was used for a short time for private flying. Within a decade, most of the buildings were abandoned and the runways became farm roads. The control tower has been turned into a family residence.
A monument of Canadian granite, and the avenue of oaks and maples between this village and the airfield, honour the fallen airmen who served in the Royal Canadian Air Force squadrons and the citizens of the community who supported them.
Halley, James J. (1988). The Squadrons of the Royal Air Force & Commonwealth 1918-1988. Tonbridge, Kent, UK: Air Britain (Historians) Ltd. ISBN0-85130-164-9.
Jefford, C. G. (2001) [1988]. RAF Squadrons, a Comprehensive record of the Movement and Equipment of all RAF Squadrons and their Antecedents since 1912 (second ed.). Shrewsbury, Shropshire, UK: Airlife Publishing. ISBN1-85310-053-6.
Moyes, Philip J. R. (1976). Bomber Squadrons of the RAF and their Aircraft (2nd ed.). London: Macdonald and Jane's (Publishers) Ltd. ISBN0-354-01027-1.
Sturtivant, Ray, ISO; Hamlin, John (2007). RAF Flying Training And Support Units since 1912. Tonbridge, Kent, UK: Air-Britain (Historians) Ltd. ISBN978-0-85130-365-9.{{cite book}}: CS1 maint: multiple names: authors list (link)