Very nice full set (50 cards) of British cigarette cards depicting “Aircraft Of The Royal Air Force”, issued in 1938.
The Royal Air Force (RAF) came into being in 1918 and was an
independent force on an equal footing with the Royal Navy and the army.
Its civilian head was the secretary of state for air, who presided over
the Air Council. The top uniformed officer was the chief of the air
staff. Until May 1940, there was also, on the Air Council, an air member
for development and production, but this position was obviated by the
creation of a separate Ministry of Air Production. In 1941, this
ministry was reintegrated into the Air Council and was headed by the
controller of research and development.
Operationally, the wartime RAF was divided into Bomber Command,
Fighter Command, Coastal Command, Reserve Command, and Training Command.
Training Command subsequently absorbed Reserve Command but was itself
divided into Flying Training Command and Technical Training Command.
Before the war ended, more commands were added: Army Co-Operation
Command, Balloon Command, Maintenance Command, and Ferry Command
(responsible for delivering aircraft from factories to combat units). In
practice, Coastal Command was under the control of the Admiralty, and
Fighter Command assumed control of all homeland air defense, including
antiaircraft artillery. Each RAF command was organized into groups,
which were in turn divided into squadrons. Fighter groups also featured a
“fighter wing,” which was intermediated between the group and squadron
level.
Bomber Command
True strategic bombing targets cities, but does so mainly to destroy
industrial production and transportation networks, then only secondarily
to terrorize the civilian population and undermine a nation’s will to
continue to fight the war. Strategic bombing is a form of economic
warfare, which directly attacks war production and other industrial and
transportation enterprises. Among British as well as American air
officers were many who believed that a large-scale program of strategic
bombing could create a devastating and therefore decisive economic
effect, including, ultimately, the complete destruction of the enemy’s
war economy. Despite significant political resistance in Britain and the
United States during the 1930s, advocates of strategic bombing managed
to persuade their governments to fund the design and construction of
heavy four-engine bombers (including, in Britain, the Wellington,
Whitley, and Hampden; and in the United States, the B-17, B-24, and
B-29), which were the necessary platforms from which heavy, long-range
bombing could be executed.
The British conducted strategic bombing under cover of night. This
had the advantage of making the bombers difficult to intercept with
fighters or to hit with ground-based antiaircraft artillery. Early in
the war, long-range fighters were unavailable to escort the bombers deep
into enemy territory; this made the bombers especially vulnerable. Yet
night bombing had the distinct disadvantage of rendering targets all but
invisible; precision bombing was therefore out of the question;
therefore, the British employed carpet- bombing (also called
area-bombing) techniques. Instead of targeting particular industrial
plants or transportation hubs, for example, the British would bomb an
entire urban area, hoping to hit valuable industrial targets in the
process. This was a highly destructive approach, but there was no
guarantee that a raid would hit anything of real strategic value.
Fighter Command’s Finest Hour
After initial skirmishes over the Channel during July and early
August, the battle of Britain began officially for the Luftwaffe on
Adlertag (“Eagle Day”), or August 13, 1940, which commenced the
protracted Operation ADLERANGRIFF (“Eagle Attack”). Although the fight
in the sky was extremely dramatic at the time and in later recollection,
at no point was the RAF on the verge of defeat. It lost many aircraft
and good men in fighting over the south, but it was able to replace both
without drawing down its main reserves by depleting the defense of the
north of Britain. The fundamental problem for the Germans was a basic
failure to understand that air warfare by its nature was attritional and
therefore, that the RAF could not be eliminated in a single “decisive
battle.” The Luftwaffe was also ill-equipped for the mission, with slow
medium bombers with inadequate bomb loads and fighters escorts of still
more limited range. That was true even though it had tried to develop a
strategic bombing capacity before the war and had a significant lead in
long-distance navigation and other blind-bombing aids.
There were several keys to the outcome. The RAF fighter force was
larger than the Luftwaffe realized when the fight began, despite heavy
losses over France and the Low Countries in May and June. Also, Britain
was able to significantly outproduce Germany in fighter aircraft
throughout the campaign: Luftwaffe intelligence calculated a fighter
replacement rate of 180-300 per month, whereas the RAF actually achieved
a rate of nearly 500 per month. The Wehrmacht held back resources from
German fighter production, which underachieved its goal by 40 percent in
the summer of 1940. The RAF thus readily replaced its aircraft losses
where the Luftwaffe did not. Similar erroneous estimates of RAF losses
marked incompetent Luftwaffe intelligence reports throughout the battle.
Also, the fight took place over Britain. That meant the RAF recovered
many downed pilots but the Luftwaffe lost aircraft and crews: nearly
1,400 aircraft all told and many crews killed, taken prisoner, or lost
in the Channel. British training schemes were already operating at full
tilt, whereas the Luftwaffe’s were not. The RAF therefore did not have
to draw down main reserves from the center and north of the country
without also replacing those more idle squadrons with fresh aircraft and
pilots. Fighter Command was further aided by a series of bad decisions
born of sheer Nazi arrogance and the erratic decision-making system in
Germany. The most fateful of these was Hitler’s choice-provoked by rage
over two small British raids against Berlin-to switch bomber targeting
from RAF airfields to attacks on British cities. That caused many
civilian deaths but allowed the RAF to continue to attrit German bombers
and fighters alike. The fundamental reason for the German defeat was
the fact that the Luftwaffe was asked to improvise a strategic air
campaign for which it did not have the right planes or doctrine, against
sophisticated British air and ground defenses in preparation over
several years. Finally, the Luftwaffe had no precedent, let alone direct
experience, in attacking an enemy that waited behind a comprehensive
early warning radar system and had an excellent command-and-control
radio net with which to direct fighter air defenses.
Coastal Command
From 1936 RAF Coastal Area operations were elevated to a full Coastal
Command. The Royal Navy and RAF thereafter cooperated in coast watch,
shipping defense, and anti-submarine warfare around Britain’s coasts and
over the North Sea. In 1941 the Admiralty was given operational control
of the aircraft of RAF Coastal Command, although its assets remained
listed under the RAF order of battle. Through late 1940 the
anti-submarine element of Coastal Command was limited by lack of
“Sunderland” or other reconnaissance aircraft, and by a more urgent need
to fl y invasion-watch missions. During 1941 longer-range aircraft were
added, and anti-submarine reconnaissance was emphasized. There followed
a growing role for older bombers in hunting and killing U-boats, as new
four-engine heavy bomber types began to leave British factories and
deploy over the continent. This led to serious interservice arguments:
RAF Bomber Command’s Arthur Harris did not want heavy bombers used for
defensive purposes. It required direct intervention by Prime Minister
Winston Churchill in August 1942, to guarantee that the Royal Navy got
the long-range reconnaissance aircraft and bombers it needed for its
vital battle at sea.
Tactical Air Force
RAF units supported British and Allied ground and naval forces in all
theaters in Africa and Europe. The Regia Aeronautica was blasted from
the skies of East Africa by the RAF by the end of 1941. The Western
Desert Air Force then established theater superiority over the Italian
and German air forces in North Africa. Waves of RAF fighters strafed
enemy ground forces by day, while tactical bombers struck troop and
armor concentrations and supply points at night. Long-range indirection
was carried out against deep rear targets such as supply depots and rail
lines. Total victory was achieved early in 1943. Meanwhile, fighter
defense of Malta survived heavy Axis assault to inflict devastating
bomber losses on the Luftwaffe and catastrophic losses on all asset
classes of the Regia Aeronautica. The campaign continued to Sicily and
Italy in the second half of 1943. The RAF became highly tactically
innovative as it applied lessons from North Africa that carried over to
the fight in Italy, then France and Germany in 1944-1945. For instance,
close support of ground forces was reduced in favor of winning the air
battle at some remove; overall operations were directed from a single
headquarters; actionable intelligence was closely integrated into air
operations; and sophisticated control and communications systems were
established between air and ground forces based on mobile radio
transmitters carried in trucks that accompanied the troops and armor.
Above all, as Richard Overy has noted, the RAF came to understand that
maintaining air superiority meant continuous and unrelenting pursuit of
the enemy. From these interservice lessons, and given its multinational
cast, the RAF was able to fairly smoothly work out inter-Allied
relations as larger American forces arrived in the ETO.
The RAF was supplemented by the Royal Auxiliary Air Force and the
Royal Air Force Volunteer Reserve. Also, the air forces of the
dominions, Australia, New Zealand, Canada, and South Africa, were
incorporated into the RAF, as were elements of the air forces of nations
that had been invaded and occupied by the Germans: Czechoslovakia,
Belgium, Netherlands, France, Norway, and Poland. Although these
elements were absorbed into the RAF, they were often permitted to retain
their unique identity by forming into national legions or squadrons.
Women also played a role in the RAF through the Women’s Auxiliary Air
Force (WAAF) and Princess Mary’s RAF Nursing Service. The RAF drew many
of its ground personnel, especially radar operators, plotters, and radio
communications monitors, from the WAAF.
Air Transport Auxiliary (ATA)
A British volunteer aviation unit comprised mainly of civilian
pilots. For reasons of age, gender, or health-there were several
one-armed or one-eyed ATA pilots-these pilots were not draftable into
active duty with the RAF. Although the ATA was administered and clerked
by British Airways civilians, it was nonetheless put under command of
the RAF, and its pilots were issued an RAF-style uniform. As military
pilots were pulled from RAF ferry duties into combat, the ATA took up
the load of flying urgent supplies within Britain, then the still more
urgent business of ferrying aircraft from factories and storage
facilities to forward air bases. ATA tasks included long-haul ferries of
Lend-Lease aircraft manufactured in the United States and flown to the
southern UK via Newfoundland, Iceland, and Scotland. Despite early RAF
resistance to allowing women pilots into the ATA, a group of eight women
began ferrying single-engine Tiger Moth trainers as early as November
1939-wartime necessity proved a partial gender equalizer. By the end of
the war, 166 women pilots served in the ATA. They ferried all types of
RAF aircraft during the war, including several Meteor jets. Twelve women
qualified to fly four-engine heavy bombers, while 82 were certified on
various medium bombers. Other women served as ATA grounds crew or
mechanics. ATA male pilots ferried combat aircraft directly to bases in
France from mid-1944. They were joined in that duty by female pilots
from September. Civilian pilots of the ATA- representing 30 Allied
nationalities-ferried 300,000 military aircraft by the end of the war.
The British army, navy, and air force all drew on conscription for
personnel. However, all RAF aircrews were volunteers, many of them
trained through the British Empire Air Training Scheme, in which the
dominions participated extensively. Indeed, the time-consuming training
of aircrews, especially pilots, was the chief factor limiting the
effectiveness of the RAF-a far more limiting factor than aircraft
production.
The RAF numbered 193,000 men at the outbreak of war in September 1939
and peaked at 992,000 in September 1944. The WAAF had 17,400 women in
September 1940 and peaked at 180,300 in September 1943. RAF losses
included 69,606 killed, 6,736 missing, 22,839 wounded, and 13,115 taken
as prisoners of war.
List of Second World War Victoria Cross recipients
List of Victoria Cross recipients of the Royal Air Force
The Battle of Britain, The Blitz and the Air War over Britain afterwards...
Pages
▼
Monday, March 14, 2016
THE BATTLE OF BRITAIN – Strategic Thinking
Serious German aircraft losses from the spring campaign greatly weakened the Luftwaffe before the Battle of Britain.
Had that been the only disadvantage under which the Luftwaffe operated,
German strategic problems would have been daunting enough, given the
difficulties of mounting a major combined arms operation. Unfortunately
for the Germans, the strain that recent battles had imposed on their
military structure represented only a small portion of the problem; a
whole host of strategic, economic, tactical, and technological problems
had to be faced and surmounted before the Reich could solve the “British
question.”
What made an inherently complex task impossible was the overconfidence that marked the German leadership in the summer of 1940. Hitler, basking in a mood of preening self-adulation, went on vacation. During a visit to Paris after the signing of the armistice, tours of World War I battlefields, and picnics along the Rhine, the last thing on Hitler’s mind was grand strategy.” The high command structure, however, was such that without Hitler there was no one with either the drive or strategic vision to pick up the reins-a state of affairs precisely in accord with the Fuhrer’s wishes.
Until mid-July 1940, Hitler believed that England would sue for a peace that he would have happily extended to her. As early as May 20, Hitler had remarked that England could have peace for the asking. Nothing in British behavior in the late 1930’s suggested that Hitler’s expectation was unrealistic. In fact, there were still some within the British government who regarded Churchill’s intransigence with distaste. In late May, Lord Halifax, the Foreign Secretary, expressed his alarm at the relish with which Churchill approached his task, while “Rab” Butler, Under Secretary of State for Foreign Affairs, told the Swedish minister in London that “no opportunity would be neglected for concluding a compromise peace if the chance [were] offered on reasonable conditions .”
But the mood in Britain had changed. Churchill, furious at Butler’s indiscretion, passed along a biting note to Halifax. Butler’s whining reply that he had been misunderstood and had meant no offense indicates how much things had changed since Churchill had assumed power.” But one must stress that Churchill’s toughness as the nation’s leader reflected a new mood in Britain. In late June 1940, Admiral Dudley Pound told the French liaison officer at the Admiralty that “the one object we had in view was winning the war and that it was as essential for them [the French] as for us that we should do so. . . . All trivialities, such as questions of friendship and hurting people’s feeling, must be swept aside.” Indeed they were, when for strategic reasons, the British government ordered the Royal Navy to attack and sink the French fleet at Mers-el-Kebir.
The Germans missed the new British resolve almost completely, and Hitler’s strategic policy from the summer of 1940 through 1941 sought a method, whether it be military, diplomatic, or political, to persuade the British to make peace. The mood in Berlin was euphoric, since the Germans believed that the war was nearly over. All that remained, from their viewpoint, was to find the right formula for ending hostilities. Confirming this perspective was a strategic memorandum of late June in which Alfred Jodl, the number two man in the OKW, suggested that “the final victory of Germany over England is only a question of time.’ Jodl’s approach to the English “problem” reflected a general failing within the officer corps of all three services. As the campaign in the west in 1940 had shown, the tactical and operational performance of German military forces was without equal. The problem lay on a higher level: that of strategy. The Germans, if they had mastered the tactical and operational lessons of World War I, had not mastered the strategic lessons of that terrible conflict. While the French failure to learn from the last war had immediate consequences in May 1940, in the long run German unwillingness to face that war’s strategic lessons had an even more catastrophic impact on their history.
German strategic planning and discussions throughout the summer of 1940 reflect, in glaring fashion, a failure to grasp the essentials of strategy. The navy had squandered its battle cruiser assets in strategically meaningless operations off Norway in the late spring. The army drew up a plan for the proposed cross-channel invasion, code named “Sea Lion,” that one can charitably describe as irrelevant to and ignorant of the general state of available naval strength . The Luftwaffe throughout the summer, following Goring’s lead, paid minimal attention to the operational problems of a channel crossing by the army in the belief that its victory over the RAF would make an invasion unnecessary.
Jodl’s June memorandum posed two possibilities for German strategy against England: (a) “a direct attack on the English motherland; (b) an extension of the war to peripheral areas” such as the Mediterranean and trade routes. In the case of a direct strategy, there existed three avenues: (1) an offensive by air and sea against British shipping combined with air attacks against centers of industry; (2) terror attacks by air against population centers; and (3) finally, a landing operation aimed at occupying England. The precondition for German success, Jodl argued, must be the attainment of air superiority. Furthermore, attacks on British aircraft plants would insure that the RAF would not recover from its defeat. Interestingly, Jodl suggested that air superiority would lead to a diminishing capacity for the RAF bomber force to attack Germany. It is in this context that German attacks in the coming struggle on Bomber Command’s bases must be seen. By extending the air offensive to interdict imports and to the use of terror attacks against the British population (justified as reprisal attacks), Jodl believed that the Luftwaffe would break British willpower. He commented that German strategy would require a landing on the British coast only as the final blow (“Todesstoss”) to finish off an England that the Luftwaffe and navy had already defeated.
On June 30, 1940, Goring signed an operational directive for the air war against England. After redeployment of its units, the Luftwaffe would first attack the RAF, its ground support echelons, and its aircraft industry. Success of these attacks would create the conditions necessary for an assault on British imports and supplies, while at the same time protecting German industry. “As long as the enemy air force is not destroyed, it is the basic principle of the conduct of air war to attack the enemy air units at every possible favorable opportunity-by day and night, in the air, and on the ground-without regard for other missions.” What is apparent in early Luftwaffe studies is the fact that the German air force regarded the whole RAF as the opponent rather than just Fighter Command. Thus, the attacks on Bomber Command bases and other RAF installations partially reflected an effort to destroy the entire British air force rather than bad intelligence. Parenthetically, the losses in France directly influenced Goring’s thinking. He demanded that the Luftwaffe maintain its fighting strength as much as possible and not allow its personnel and materiel to be diminished because of overcommitments.
In retrospect, the task facing the Germans in the summer of 1940 was beyond their capabilities. Even disregarding the gaps in interservice cooperation-a must in any combined operations-the force structure, training, and doctrine of the three services were not capable of solving the problem of invading the British Isles. The Norwegian campaign had virtually eliminated the Kriegsmarine as a viable naval force. Thus, there were neither heavy units nor light craft available to protect amphibious forces crossing the Channel. The lack of escorting forces would have made “Sea Lion” particularly hazardous because it meant that the Germans possessed no support against British destroyer attacks coming up or down the Channel. The Admiralty had stationed 4 destroyer flotillas (approximately 36 destroyers) in the immediate vicinity of the threatened invasion area, and additional forces of cruisers, destroyers, and battleships were available from the Home Fleet.” Even with air superiority, it is doubtful whether the Luftwaffe could have prevented some British destroyers from getting in among the amphibious forces; the Navy certainly could not. The landing craft that circumstances forced the Germans to choose, Rhine River barges, indicates the haphazard nature of the undertaking as well as the tenuous links to supplies and reinforcements that the Germans would have had across the Channel. Just a few British destroyers among the slow moving transport vessels would have caused havoc.
Air superiority itself represented a most difficult task, given Luftwaffe strength and aircraft capabilities. Somewhat ironically, the strategic problem confronting the Germans in the summer of 1940 represented in microcosm that facing Allied air forces in 1943. Because of the Bf 109’s limited range, German bombers could only strike southern England where fighter protection could hold the loss rate down to acceptable levels. This state of affairs allowed the RAF a substantial portion of the country as a sanctuary where it could establish and control an air reserve and where British industrial power, particularly in the Birmingham-Liverpool area, could maintain production largely undisturbed. Moreover, the limited range of German fighter cover allowed the British one option that they never had to exercise: Should the pressure on Fighter Command become too great, they could withdraw their fighters north of London to refit and reorganize; then when the Germans launched “Sea Lion,” they could resume the struggle. Thus in the final analysis, the Luftwaffe could only impose on Fighter Command a rate of attrition that its commanders would accept. The Germans were never in a position to attack the RAF over the full length and breadth of its domain. Similarly in 1943, Allied fighters could only grapple with the Germans up to a line approximately along the Rhine. On the other side of the line, the Luftwaffe could impose an unacceptable loss rate on Allied bombers. Not until Allied fighters could range over the entire length and breadth of Nazi Germany could Allied air forces win air superiority over the continent.
LINK
What made an inherently complex task impossible was the overconfidence that marked the German leadership in the summer of 1940. Hitler, basking in a mood of preening self-adulation, went on vacation. During a visit to Paris after the signing of the armistice, tours of World War I battlefields, and picnics along the Rhine, the last thing on Hitler’s mind was grand strategy.” The high command structure, however, was such that without Hitler there was no one with either the drive or strategic vision to pick up the reins-a state of affairs precisely in accord with the Fuhrer’s wishes.
Until mid-July 1940, Hitler believed that England would sue for a peace that he would have happily extended to her. As early as May 20, Hitler had remarked that England could have peace for the asking. Nothing in British behavior in the late 1930’s suggested that Hitler’s expectation was unrealistic. In fact, there were still some within the British government who regarded Churchill’s intransigence with distaste. In late May, Lord Halifax, the Foreign Secretary, expressed his alarm at the relish with which Churchill approached his task, while “Rab” Butler, Under Secretary of State for Foreign Affairs, told the Swedish minister in London that “no opportunity would be neglected for concluding a compromise peace if the chance [were] offered on reasonable conditions .”
But the mood in Britain had changed. Churchill, furious at Butler’s indiscretion, passed along a biting note to Halifax. Butler’s whining reply that he had been misunderstood and had meant no offense indicates how much things had changed since Churchill had assumed power.” But one must stress that Churchill’s toughness as the nation’s leader reflected a new mood in Britain. In late June 1940, Admiral Dudley Pound told the French liaison officer at the Admiralty that “the one object we had in view was winning the war and that it was as essential for them [the French] as for us that we should do so. . . . All trivialities, such as questions of friendship and hurting people’s feeling, must be swept aside.” Indeed they were, when for strategic reasons, the British government ordered the Royal Navy to attack and sink the French fleet at Mers-el-Kebir.
The Germans missed the new British resolve almost completely, and Hitler’s strategic policy from the summer of 1940 through 1941 sought a method, whether it be military, diplomatic, or political, to persuade the British to make peace. The mood in Berlin was euphoric, since the Germans believed that the war was nearly over. All that remained, from their viewpoint, was to find the right formula for ending hostilities. Confirming this perspective was a strategic memorandum of late June in which Alfred Jodl, the number two man in the OKW, suggested that “the final victory of Germany over England is only a question of time.’ Jodl’s approach to the English “problem” reflected a general failing within the officer corps of all three services. As the campaign in the west in 1940 had shown, the tactical and operational performance of German military forces was without equal. The problem lay on a higher level: that of strategy. The Germans, if they had mastered the tactical and operational lessons of World War I, had not mastered the strategic lessons of that terrible conflict. While the French failure to learn from the last war had immediate consequences in May 1940, in the long run German unwillingness to face that war’s strategic lessons had an even more catastrophic impact on their history.
German strategic planning and discussions throughout the summer of 1940 reflect, in glaring fashion, a failure to grasp the essentials of strategy. The navy had squandered its battle cruiser assets in strategically meaningless operations off Norway in the late spring. The army drew up a plan for the proposed cross-channel invasion, code named “Sea Lion,” that one can charitably describe as irrelevant to and ignorant of the general state of available naval strength . The Luftwaffe throughout the summer, following Goring’s lead, paid minimal attention to the operational problems of a channel crossing by the army in the belief that its victory over the RAF would make an invasion unnecessary.
Jodl’s June memorandum posed two possibilities for German strategy against England: (a) “a direct attack on the English motherland; (b) an extension of the war to peripheral areas” such as the Mediterranean and trade routes. In the case of a direct strategy, there existed three avenues: (1) an offensive by air and sea against British shipping combined with air attacks against centers of industry; (2) terror attacks by air against population centers; and (3) finally, a landing operation aimed at occupying England. The precondition for German success, Jodl argued, must be the attainment of air superiority. Furthermore, attacks on British aircraft plants would insure that the RAF would not recover from its defeat. Interestingly, Jodl suggested that air superiority would lead to a diminishing capacity for the RAF bomber force to attack Germany. It is in this context that German attacks in the coming struggle on Bomber Command’s bases must be seen. By extending the air offensive to interdict imports and to the use of terror attacks against the British population (justified as reprisal attacks), Jodl believed that the Luftwaffe would break British willpower. He commented that German strategy would require a landing on the British coast only as the final blow (“Todesstoss”) to finish off an England that the Luftwaffe and navy had already defeated.
On June 30, 1940, Goring signed an operational directive for the air war against England. After redeployment of its units, the Luftwaffe would first attack the RAF, its ground support echelons, and its aircraft industry. Success of these attacks would create the conditions necessary for an assault on British imports and supplies, while at the same time protecting German industry. “As long as the enemy air force is not destroyed, it is the basic principle of the conduct of air war to attack the enemy air units at every possible favorable opportunity-by day and night, in the air, and on the ground-without regard for other missions.” What is apparent in early Luftwaffe studies is the fact that the German air force regarded the whole RAF as the opponent rather than just Fighter Command. Thus, the attacks on Bomber Command bases and other RAF installations partially reflected an effort to destroy the entire British air force rather than bad intelligence. Parenthetically, the losses in France directly influenced Goring’s thinking. He demanded that the Luftwaffe maintain its fighting strength as much as possible and not allow its personnel and materiel to be diminished because of overcommitments.
In retrospect, the task facing the Germans in the summer of 1940 was beyond their capabilities. Even disregarding the gaps in interservice cooperation-a must in any combined operations-the force structure, training, and doctrine of the three services were not capable of solving the problem of invading the British Isles. The Norwegian campaign had virtually eliminated the Kriegsmarine as a viable naval force. Thus, there were neither heavy units nor light craft available to protect amphibious forces crossing the Channel. The lack of escorting forces would have made “Sea Lion” particularly hazardous because it meant that the Germans possessed no support against British destroyer attacks coming up or down the Channel. The Admiralty had stationed 4 destroyer flotillas (approximately 36 destroyers) in the immediate vicinity of the threatened invasion area, and additional forces of cruisers, destroyers, and battleships were available from the Home Fleet.” Even with air superiority, it is doubtful whether the Luftwaffe could have prevented some British destroyers from getting in among the amphibious forces; the Navy certainly could not. The landing craft that circumstances forced the Germans to choose, Rhine River barges, indicates the haphazard nature of the undertaking as well as the tenuous links to supplies and reinforcements that the Germans would have had across the Channel. Just a few British destroyers among the slow moving transport vessels would have caused havoc.
Air superiority itself represented a most difficult task, given Luftwaffe strength and aircraft capabilities. Somewhat ironically, the strategic problem confronting the Germans in the summer of 1940 represented in microcosm that facing Allied air forces in 1943. Because of the Bf 109’s limited range, German bombers could only strike southern England where fighter protection could hold the loss rate down to acceptable levels. This state of affairs allowed the RAF a substantial portion of the country as a sanctuary where it could establish and control an air reserve and where British industrial power, particularly in the Birmingham-Liverpool area, could maintain production largely undisturbed. Moreover, the limited range of German fighter cover allowed the British one option that they never had to exercise: Should the pressure on Fighter Command become too great, they could withdraw their fighters north of London to refit and reorganize; then when the Germans launched “Sea Lion,” they could resume the struggle. Thus in the final analysis, the Luftwaffe could only impose on Fighter Command a rate of attrition that its commanders would accept. The Germans were never in a position to attack the RAF over the full length and breadth of its domain. Similarly in 1943, Allied fighters could only grapple with the Germans up to a line approximately along the Rhine. On the other side of the line, the Luftwaffe could impose an unacceptable loss rate on Allied bombers. Not until Allied fighters could range over the entire length and breadth of Nazi Germany could Allied air forces win air superiority over the continent.
LINK