No. 13 Group RAF
No. 13 Group RAF was a Royal Air Force command responsible at different times for air defence operations across northern Britain, most notably during the Battle of Britain.
Last updated August 26, 2026
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Overview
No. 13 Group RAF was a Royal Air Force operational command formed and disbanded during several periods of the twentieth century. It was not a commercial brand, but a geographically organised military formation within the RAF. Its best-known service came during the Second World War, when it formed part of Fighter Command’s air-defence system and was responsible for Scotland, Northern Ireland and northern England. The group was first created on 1 April 1918 within No. 3 Area, during the organisational expansion that accompanied the establishment of the Royal Air Force. It moved to Midland Area on 8 May 1918, but this first incarnation was short-lived. On 18 October 1919, it was disbanded and its functions were combined with No. 3 Group. As Fighter Command expanded in the years before the Second World War, the RAF identified the need for a separate command covering the northern part of the United Kingdom. No. 13 Group was re-established in September 1939. Its wartime headquarters were at Kenton near Newcastle upon Tyne, with a Filter Room at nearby Blakelaw Quarry. The group operated within the Dowding system, an integrated network that combined radar stations, observation posts, filter rooms, sector stations and fighter squadrons to detect, assess and intercept hostile aircraft. During the Battle of Britain, No. 13 Group defended the north while also supporting the harder-pressed No. 11 Group in southern England. It supplied reserve squadrons and pilots, and its relatively quieter stations gave exhausted units an opportunity to recover. German intelligence underestimated the strength of the group and assumed that northern Britain would offer limited fighter resistance. That assessment was exposed on 15 August 1940, when the Luftwaffe mounted a major daylight attack against north-eastern England. The operation involved bombers and fighter aircraft, including Heinkel He 111s, Junkers Ju 88s and Messerschmitt Bf 110s. RAF fighters intercepted the raid, and the attacking force suffered substantial losses. The group’s work continued after the central Battle of Britain period. Its squadrons assisted RAF Coastal Command with anti-submarine patrols and convoy air cover, while newly trained pilots were often assigned to its units to gain operational experience. In June 1943, No. 32 Wing of Army Cooperation Command transferred to the group. In July, the disbandment of No. 14 Group led to the absorption of its assets and area into No. 13 Group. The headquarters moved from Newcastle to Inverness in August 1943 and later to RAF Dalcross in November 1945. No. 13 Group was disbanded on 20 May 1946. It was re-formed on 4 April 1955 at RAF Watnall in a fighter-control role, but this later existence ended on 31 December 1961, when the group was redesignated No. 11 Group. Its historical significance rests principally on its role in the northern air-defence network, its use of the Dowding system, and its contribution to the wider RAF effort during the Battle of Britain.
History
No. 13 Group RAF originated during the RAF’s first year as an independent service. Created on 1 April 1918 within No. 3 Area, it was transferred to Midland Area on 8 May. This initial group did not survive the post-First World War reorganisation: on 18 October 1919 it was disbanded and amalgamated with No. 3 Group. The group’s principal historical identity began with its re-formation in September 1939. Fighter Command required a command structure for the air defence of Scotland, Northern Ireland and northern England, and No. 13 Group fulfilled that function. Air Vice-Marshal Richard Ernest Saul was its first wartime commander. The group headquarters at Kenton, near Newcastle upon Tyne, worked with a Filter Room at Blakelaw Quarry. Together with radar stations, observer networks, sector stations and fighter airfields, these facilities formed part of the Dowding system, which enabled Fighter Command to turn early warning into coordinated interceptions. During the Battle of Britain, No. 13 Group defended the northern region while contributing personnel and aircraft to the wider Fighter Command effort. It provided reserve squadrons and pilots to No. 11 Group, whose area around London and south-east England experienced some of the heaviest fighting. No. 13 Group’s bases also served as recovery locations for units needing relief from sustained operations. The group supported pilot development by issuing the instructional brochure “Forget-Me-Nots for Fighters,” which included a foreword from Saul. German planning treated northern Britain as comparatively weakly defended. On 15 August 1940, the Luftwaffe launched its only major daylight flank attack against northern England. The operation included 65 Heinkel He 111 bombers escorted by 34 Messerschmitt Bf 110s, while 50 unescorted Junkers Ju 88s attacked RAF Driffield. RAF fighters challenged the raids, and the Luftwaffe lost 16 bombers and seven fighters according to the cited account. The engagement demonstrated the danger of underestimating the group’s fighter strength and the effectiveness of the integrated warning-and-control system. After the Battle of Britain, No. 13 Group remained operationally important. Its squadrons helped Coastal Command patrol for U-boats and protect convoys. New pilots were commonly posted to its squadrons to build experience under conditions regarded as less hazardous than the most intense combat zones. In June 1943, No. 32 Wing of Army Cooperation Command joined the group, adding the airfields at Macmerry, Kirknewton and Findo Gask. When No. 14 Group was disbanded in July 1943, its assets and geographical responsibilities were absorbed by No. 13 Group. The group headquarters moved to Inverness in August 1943 and then to RAF Dalcross in November 1945. In the immediate post-war period, the group controlled five squadrons at two stations: Nos. 91, 122 and 316 Squadrons at RAF Wick, and Nos. 164 and 303 Squadrons at RAF Turnhouse. No. 13 Group was disbanded on 20 May 1946. It returned to service on 4 April 1955 at RAF Watnall as a fighter group, but its final existence ended on 31 December 1961, when it was redesignated No. 11 Group. The group is therefore remembered as a recurring RAF command whose most prominent period was its northern air-defence role in 1940.
- 1961
Final redesignation
[1]The group was disbanded on 31 December and redesignated No. 11 Group.
- 1955
Re-formation at RAF Watnall
[1]No. 13 Group was re-established on 4 April in a fighter role.
- 1946
Post-war disbandment
[1]The wartime group was disbanded on 20 May.
- 1943
Expansion of responsibilities
[1]No. 32 Wing transferred to the group in June, while No. 14 Group’s assets and area were absorbed in July.
- 1940
Battle of Britain northern defence
[1]The group defended northern Britain and resisted the Luftwaffe’s 15 August daylight flank attack on northern England.
- 1939
Re-formation for northern air defence
[1]The group was re-formed in September as Fighter Command expanded before the Second World War.
- 1919
First disbandment
[1]The original group ended on 18 October when it was amalgamated with No. 3 Group.
- 1918
Formation during the First World War
[1]No. 13 Group was formed on 1 April within No. 3 Area and transferred to Midland Area on 8 May.
Products and positioning
A Royal Air Force geographic command rather than a consumer or commercial brand; historically positioned as the RAF’s northern fighter-defence formation.
Air-defence command system · 1939
Dowding system operations
No. 13 Group operated the Fighter Command network of radar stations, observation posts, filter rooms, sector stations and fighter squadrons. Its role was to collect reports, assess threats and direct aircraft toward interceptions across northern Britain.
Pilot education publication · 1940
Forget-Me-Nots for Fighters
This instructional brochure was produced to support pilot education during the Battle of Britain. It offered operational reminders for fighter personnel and included a foreword by Air Vice-Marshal Richard Ernest Saul.
Military aviation support · 1940
Coastal patrol and convoy air cover
After the Battle of Britain, squadrons associated with No. 13 Group supported Coastal Command by patrolling for U-boats and providing air cover for shipping and convoys. The group also served as an operational environment for newly trained pilots.
Marketing campaigns
- 1940Battle of Britain northern air defence
United Kingdom
No. 13 Group defended Scotland, Northern Ireland and northern England while reinforcing the broader Fighter Command effort. It supplied reserve units and pilots to No. 11 Group and provided recovery bases for squadrons rotating away from intense combat.
Outcome. The group maintained effective northern defences and disproved German assumptions that the region had few operational fighters.
- 194015 August Luftwaffe flank attack
Northern England
The Luftwaffe sent bomber formations and escorts against north-eastern England, including an attack on RAF Driffield. No. 13 Group coordinated the northern fighter response through the Fighter Command control network.
Outcome. The attacking force lost 16 bombers and seven fighters, according to the cited historical account.
Sources1 sources
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