Impact of the RAF on the Battle of Britain
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Impact of the RAF on World War II
 No. 12 Fighter Squadron[1] |
Contents
Abstract
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Introduction
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Section 1: Background
Aircraft Production Ramp up
After the breakup of the League of Nations' Disarmament Conference in 1934, Britain began its expansion of its Air Force. At first, the expansion was nothing more than an attempt to impress the Germans with 'Scheme A'. Shortly after this though, Britain's Secretary of State for air, Sir Philip Cunliffe-Lister increased the expansion program. The goal for the program was to increase the RAF, Royal Air Force, by 588 aircraft to include a total of 1512 aircraft. To make the goal a reality, the Shadow Factory scheme was put into place in March 1936. This program built state owned plants that were managed by non-aerospace industrial manufacturers who built products designed by aircraft makers. One example, Lord Huffield's company, Wolseley, was given control of the Castle Bromwich factory that built Spitfires under the guidance of Vickers Supermarine. In the end, Huffield's company was very inefficient at running the factory which was then turned over to Vickers Supermarine directly to manufacture Spitfires. This was an instance of the Shadow factory scheme not working well and hurt Britain at the beginning of the Battle of Britain because of the limited number of Spitfires that were available. Other manufacturers also had issues, but some excelled at their job, it was a mixed bag of performance.[2]
British RAF
Blenheim
The Bristol Blenheim was a two seater night fighter that was converted from the original design of a light bomber. Powering the plane were two 840 hp Bristol Mercury VIII radial piston engines. It had a maximum speed of 260 mph at 12,000 ft, with a service ceiling of 24,600 ft. It had a range of 1,460 miles on its internal tanks. The empty weight of the plane was 8,100 lbs with a maximum takeoff weight of 12,500 lbs. it had a wingspan of 56 ft 4 in, a length of 39 ft 9 in, and a height of 12 ft 10 in. It was armed with six 0.303 in machine guns.[4]
Variants
Blenheim Mk I
Blenheim Mk IF
Blenheim Mk IV
Blenheim Mk IVF
Blenheim Mk V
Defiant
The Boulton Paul Defiant was a two seater fighter. It was powered by a 1,030 hp Tolls-Royce Merlin III twelve cylinder liquid cooled engine. It had a maximum speed of 304 mph at 17,000 ft with a service ceiling of 30,348 ft. It had a maximum range of 465 miles. Its empty weight was 6,281 lbs with a maximum takeoff weight of 8,424 lbs. It had a wingspan of 39 ft 4 in, a length of 35 ft 4 in, and a height of 11 ft 4 in. It was armed with four 0.303 in Browning machine guns mounted to a hydraulically operated turret behind the pilot. The turret allowed for exceptional coverage but being a heavier aircraft it was sluggish in combat and was vulnerable to conventional enemy fighters. After several massacres at the hands of the Luftwaffe the fighter transitioned into a Night Fighter but when that wasn't successful either the fighter was phased out.[6][7][8]
Variants
Defiant Mk I
Defiant NF.Mk I
Defiant TT.Mk I
Defiant NF.Mk II
Defiant TT.Mk II
Hurricane
The Hawker Hurricane was a single seater fighter/fighter-bomber. It was powered by one 1,280 hp Rolls-Royce Merlin XX V-12 piston engine. It had a maximum speed of 342 mph at 22,000 ft with a service ceiling of 36,500 ft. The range of the plane was 480 miles with internal tanks, but also had external tanks with a capacity of 90 gallons which about doubled this range. The empty aircraft weighed in at 5,500 lbs, with a maximum take-off weight of 7,300 lbs. The plane had a wingspan of 40 ft, length of 32 ft 2 1/2 in, and a height of 13 ft 1 in. It was armed with twelve 0.303-in forward-firing machine-guns, plus two 250 lb or one 500 lb bombs. The later versions of this aircraft replaced the twelve 0.303-in machine guns with four 20 mm cannons.[9]
Variants
Hurricane Mk I
Hurricane Mk II
Hurricane Mk III
Hurricane Mk IV
Hurricane Mk V
Spitfire
The Supermarine Spitfire was a single seater day fighter. It was powered by a 1,030 hp Rolls-Royce Merlin II or III V-12 piston engine. It had a maximum speed of 355 mph at 19,000 ft with a service ceiling of 34,000 ft. It had a maximum range of 495 miles on its internal tanks. Empty it weighed in at 4,796 lbs with a maximum takeoff weight of 5,332 lbs. It had a wingspan of 36 ft 10 in, a length of 29 ft 11 in, and a height of 11 ft 5 in. It was initially armed with 8 0.303-in Browning machine guns, but later on in the war 20 mm Hispano cannons were introduced. There were several different wing designs throughout its lifetime that were used to house different weapons. The original A wing housed eight 0.303-in machine guns, the B wing housed four 0.303-in machine guns and two 20 mm cannons, and the C wing was interchangeable and could be formatted like the previous A and B wings or a third option of four 20 mm cannons.[10] Later in the war more wing variants were developed, the D wing was a specialized wing for photo reconnaissance aircraft providing extra fuel to allow for a range of up to 2000 miles, the E wing housed two 20 mm and two 0.5 in cannons as well as the capacity to hold a 250 lb bomb on each wing.[11][12]
Variants
Spitfire Mk I
Spitfire Mk II
Spitfire Mk III
Spitfire Mk IV
Spitfire Mk V
Spitfire Mk VI
Spitfire Mk VII
Spitfire Mk VIII
Spitfire Mk IX
Spitfire Mk X
Spitfire Mk XI
Spitfire Mk XII
Spitfire Mk XIII
Spitfire Mk XIV
Spitfire Mk XV
Spitfire Mk XVI
Spitfire Mk XVII
Spitfire Mk XVIII
Spitfire Mk XIX
Spitfire Mk XX
Spitfire Mk 21
Spitfire Mk 22
Spitfire Mk 24
German Luftwaffe
Messerschmitt Bf 109
The Messerschmitt Bf 109 was a single seater multirole fighter. It was powered by a 1,200 hp Daimler-Benz DB 605A liquid cooled 12 cylinder piston engine. It had a maximum speed of 359 mph and a service ceiling of 36,499 ft. It had a maximum range of 680 miles. When empty it had a weight of 4,440 lbs and a maximum takeoff weight of 6,100 lbs. It measured 32 ft 4 in in wingspan, 28 ft 8 in in length, and 11 ft 2 in in height. For armament it had a cannon in the propeller hub, two to four 7.9 mm machine guns, and two cannons in underwing gunpods.[13]
Variants
Messerschmitt Bf 109E-1
Messerschmitt Bf 109E-2
Messerschmitt Bf 109E-3
Messerschmitt Bf 109E-4
Messerschmitt Bf 109E-5
Messerschmitt Bf 109E-6
Messerschmitt Bf 109E-7
Messerschmitt Bf 109E-8
Messerschmitt Bf 109E-9
Messerschmitt Bf 109F-1
Messerschmitt Bf 109F-2
Messerschmitt Bf 109F-3
Messerschmitt Bf 109F-4
Messerschmitt Bf 109F-5
Messerschmitt Bf 109F-6
Messerschmitt Bf 109G-1
Messerschmitt Bf 109G-2
Messerschmitt Bf 109G-3
Messerschmitt Bf 109G-4
Messerschmitt Bf 109G-5
Messerschmitt Bf 109G-6
Messerschmitt Bf 109G-7
Messerschmitt Bf 109G-8
Messerschmitt Bf 109G-9
Messerschmitt Bf 109G-10
Messerschmitt Bf 109G-11
Messerschmitt Bf 109G-12
Messerschmitt Bf 109G-13
Messerschmitt Bf 109G-14
Messerschmitt Bf 109G-15
Messerschmitt Bf 109G-16
Messerschmitt Bf 109H-1
Messerschmitt Bf 109K-1
Messerschmitt Bf 109K-2
Messerschmitt Bf 109K-3
Messerschmitt Bf 109K-4
Messerschmitt Bf 109K-5
Messerschmitt Bf 109K-6
Messerschmitt Bf 109K-7
Messerschmitt Bf 109K-8
Messerschmitt Bf 109K-9
Messerschmitt Bf 109K-10
Messerschmitt Bf 109K-11
Messerschmitt Bf 109K-12
Messerschmitt Bf 109K-13
Messerschmitt Bf 109K-14
Messerschmitt Bf 110
The Messerschmitt Bf 110 Zestorer was a two seater Heavy Fighter/Fighter-bomber. It was powered by two Daimler Benz DB 601B-1 V-12 piston engines producing 1,474 hp. It had a maximum speed of 342 mph with a service ceiling of 26,247 ft. It had a maximum range of 1,305 miles. The empty weight of the aircraft was 11,222 lbs with a maximum takeoff weight of 21,804 lbs. It had a wingspan of 53 ft 4 in, a length of 42 ft 9 in, and a height of 13 ft 8 in. It was armed with two 30 mm and two 20 mm cannons in its nose and two 7.92 mm machine guns in the rear cockpit. The fighter bomber versions could also carry up to 4,410 lbs of conventional drop bombs. The aircraft excelled at its main design point of being a combat destroyer, but maneuverability was its weakest quality.[14]
Variants
Messerschmitt Bf 110A-0
Messerschmitt Bf 110B
Messerschmitt Bf 110B-1
Messerschmitt Bf 110B-2
Messerschmitt Bf 110B-3
Messerschmitt Bf 110C
Messerschmitt Bf 110C-1
Messerschmitt Bf 110C-2
Messerschmitt Bf 110C-3
Messerschmitt Bf 110C-4
Messerschmitt Bf 110C-5
Messerschmitt Bf 110C-6
Messerschmitt Bf 110C-7
Messerschmitt Bf 110D
Messerschmitt Bf 110D-1
Messerschmitt Bf 110D-2
Messerschmitt Bf 110D-3
Messerschmitt Bf 110D-4
Messerschmitt Bf 110E
Messerschmitt Bf 110E-1
Messerschmitt Bf 110E-2
Messerschmitt Bf 110E-3
Messerschmitt Bf 110F
Messerschmitt Bf 110F-1
Messerschmitt Bf 110F-2
Messerschmitt Bf 110F-3
Messerschmitt Bf 110F-4
Messerschmitt Bf 110G
Messerschmitt Bf 110G-2
Messerschmitt Bf 110G-3
Messerschmitt Bf 110G-4
British Fighter Command
The Fighter Command's Commander-in-Chief during the lead up to and during the Battle of Britain was Sir Hugh Dowding.[16] The role of Fighter Command was to repel any attack on Britain from the Luftwaffe, German Air Force. To best complete this mission Dowding had a plan to divide his resources across England. The No. 11 group which covered the southeast of the country was supplied with 12 Hurricane, 6 Spitfire, and 4 Blenheim squadrons. The No. 12 group which covered the East Anglia area was supplied with 5 Hurricane, 5 Spitfire, 2 Blenheim, and 1 Defiant squadrons. The No. 13 group in the north was supplied with 3 Hurricane, 6 Spitfire, 1 Blenheim, and 1 Defiant squadrons. The No. 10 covering the west included 2 Hurricane, and 2 Spitfire squadrons. Many people felt that Dowding should have concentrated all of his best fighters in the No. 11 group as that was the most likely to encounter fighter opposition. Dowding knew that the Battle of Britain would be a war of attrition and to keep a mix of fighters in less dangerous areas as a reserve would be important to the upcoming battle.[17] The Fighter Command had plenty of aircraft to go around with production ramping up, but pilots were much more difficult to replace. At the beginning of the Battle of Britain many squadrons were over-manned but as it dragged on training new pilots became a problem. As training took 6 months there were not enough pilots to have Fighter Command at full strength so the training courses were reduced to 4 weeks with the squadrons left to finish the pilot's training, sometimes with disastrous consequences.[18] Dowding was not the most liked of the leaders in the military and was eventually forced out of his position as the head of Fighter Command on November 17, 1940.[19] At the time, no one recognized the importance of his work and how he saved Britain. Most importantly he set up a system of direction and control for his fighters to get the most out of their limited resources. Second, Dowding pushed to limit the support of the French in terms of aircraft that were essential to defending Britain in an air attack; he didn't stop the outflow of aircraft but helped reduce the number of aircraft supplied to France. Third, his careful placement and use of fighter resources prevented being draw into a major battle and having his forces destroyed. His plan to keep fighters in reserve to reinforce the main No. 11 group was essential to this even though it gained much criticism.[20]
Fighter Command and Control System
Radar Stations
At the time Radar was known as Radio Direction Finding and the system that was in use by the British was simple but effective. The initial deployment was High Frequency radio Direction Finding (HF DF) to find the position of a friendly aircraft when it was out of sight of the controller. As the technology became refined, Fighter Command began experimenting with radar controlled intercepts of unknown targets in 1936.[22] In 1937, the system in use was known as Pip Squeak. This system transmitted a coded DF signal for 14 seconds every minute to allow the controllers to know the identity of each aircraft. To identify the other aircraft not using the Pip Squeak system they turned to physicist Robert Watson-Watt. This new technology was designated RDF which was rapidly developed. In only a few months the system was up and running detecting aircraft out to 58 miles. A string of these radar stations were built on the southern coast in 1936 and became fully operational in 1938.[23] This first chain of 21 stations was called Chain Home and utilized fixed antenna arrays. There was also another set of radar stations called the Chain Home Low stations, of which there were 30, that utilized a rotating antenna for a narrow search beam. These were not as effective as they had less range and could not provide altitude information.[24] In addition to these radar advances, an improvement in plane identification was also being developed. The new system was called IFF, Identification Friend or Foe. The IFF was a small transmitter that produced a distinctive radar blip to allow radar operators to differentiate between friend and foe.[25] When both friendly and enemy planes were spotted on radar that information was then sent to the Filter Room to be assessed.
Observer Corps
The Observer Corps was a volunteer service meant to fill in the gaps of radar. Radar was successful at looking out to sea but was blind to its back on land. The job of the Observer Corps was to track and report the movement of aircraft over land. Volunteers for the Observer Corps used binoculars, telescopes, and makeshift devices to determine the altitude and bearing of enemy aircraft. This technique was trialed in 1925 to outstanding success, after which the program rolled out rapidly to over 100 posts in that year. For the large roll out, a map was divided into 1.2 mile squares which then reported via telephone lines to their respective Observer Corps Group Headquarters. The full scale system across Britain was tested during the 1939 Air Exercises after which the posts were manned unbroken for 6 years until the end of the war.[27]
Fighter Command Operations Room and Filter Room
The Fighter Command and Operations Room was manned by the Commander-in-Chief of Fighter Command, Commander-in-Chiefs of the Observer Corps and the Anti Aircraft Command, the liaison officers of Bomber and Coastal Commands, the liaison officer of the Admiralty, and the liaison officer for the Ministry of Home Security. The room housed the plotting table that displayed aircraft over all of the UK and the sea approaches. The Filter Room was located underneath the Fighter Command Operations Room. Its job was to receive all of the plots from the Radar Stations, compile them and cross reference the plots with the IFF plots. These cross referenced plots were then passed upstairs to the Fighter Command Operations Room.[29]
Group and Sector Operations Rooms
The Group Operations Room received radar plots from the Filter Rooms and visual plots from the Observer Corps. The information was analyzed and then used to direct sectors to deal with incoming raids. In the event the Group Operations Room was knocked out in a raid, each Sector Operations Room could be used as the to command center. Each Sector Operations Room had its own plotting tables with radar and Observer Corps plots provided from the Filter Room. When a Sector Operations Room was given notice of an enemy raid a controller would order an aircraft launch and then vector them for an intercept which was confirmed when the formation leader called 'Tally Ho!' which means enemy in sight.[30] To vector the aircraft, the controller needed to know the location of the friendlies which was reported by the Direction-finding Triangulation who received information from the Direction Finding, D/F, stations. The Sector Operations Room also controlled the anti-aircraft guns and Balloon Barrages. As with the aircraft launches, the Sector Controller would alert the guns and balloons to incoming enemy raids to allow them time to position.[31]
Section 2: Deliverable
Interactive animation of RAF response for the defense of Britain
Conclusion
In this section, provide a summary or recap of your work, as well as potential areas of further inquiry (for yourself, future students, or other researchers).
References
- ↑ Lake, J. (2000). The Battle of Britain. Silverdale Books. pp 175.
- ↑ Lake, J. (2000). The Battle of Britain. Silverdale Books. pp 75-78.
- ↑ Gunston, B. (1982). British Fighters of World War II. The Hamlyn Publishing Group Limited. pp 18.
- ↑ Gunston, B. (1982). British Fighters of World War II. The Hamlyn Publishing Group Limited. pp 18.
- ↑ Gunston, B. (1982). British Fighters of World War II. The Hamlyn Publishing Group Limited. pp 16.
- ↑ Boulton Paul Defiant. (n.d.). Retrieved June 09, 2017, from [1]
- ↑ J. (2015, May 26). 9 Iconic Aircraft From The Battle Of Britain. Retrieved June 09, 2017, from [2]
- ↑ Boulton Paul Defiant Night-fighter / Interceptor Aircraft. (n.d.). Retrieved June 09, 2017, from [3]
- ↑ Gunston, B. (1982). British Fighters of World War II. The Hamlyn Publishing Group Limited. pp 10.
- ↑ Gunston, B. (1982). British Fighters of World War II. The Hamlyn Publishing Group Limited. pp 13.
- ↑ Rickard, J. (2007, March 12). Supermarine Spitfire - the gun wings. Retrieved June 09, 2017, from [4]
- ↑ Gunston, B. (1982). British Fighters of World War II. The Hamlyn Publishing Group Limited. pp 46.
- ↑ Messerschmitt Bf 109 Single-Seat Multirole Fighter. (n.d.). Retrieved June 09, 2017, from [5]
- ↑ Messerschmitt Bf 110 Zerstorer (Destroyer) Heavy Fighter / Fighter-Bomber / Night Fighter. (n.d.). Retrieved June 09, 2017, from [6]
- ↑ Great Britain. Royal Air Force. Fighter Command. (1941). Gnomonic Chart with Fighter Command Grid super imposed.
- ↑ Lake, J. (2000). The Battle of Britain. Silverdale Books. pp 83.
- ↑ Lake, J. (2000). The Battle of Britain. Silverdale Books. pp 90.
- ↑ Lake, J. (2000). The Battle of Britain. Silverdale Books. pp 91.
- ↑ Lake, J. (2000). The Battle of Britain. Silverdale Books. pp 99.
- ↑ Lake, J. (2000). The Battle of Britain. Silverdale Books. pp 93-97.
- ↑ Lake, J. (2000). The Battle of Britain. Silverdale Books. pp 97.
- ↑ Lake, J. (2000). The Battle of Britain. Silverdale Books. pp 100.
- ↑ Lake, J. (2000). The Battle of Britain. Silverdale Books. pp 103-104.
- ↑ Lake, J. (2000). The Battle of Britain. Silverdale Books. pp 104.
- ↑ Lake, J. (2000). The Battle of Britain. Silverdale Books. pp 104.
- ↑ Lake, J. (2000). The Battle of Britain. Silverdale Books. pp 112.
- ↑ Lake, J. (2000). The Battle of Britain. Silverdale Books. pp 109-111.
- ↑ Lake, J. (2000). The Battle of Britain. Silverdale Books. pp 98.
- ↑ Lake, J. (2000). The Battle of Britain. Silverdale Books. pp 105.
- ↑ Lake, J. (2000). The Battle of Britain. Silverdale Books. pp 105-106.
- ↑ RAF. (n.d.). RAF - The RAF Fighter Control System. Retrieved June 07, 2017, from [7]
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