Aerial ramming

Aerial ramming or air ramming is the ramming of one aircraft with another. It is a last-ditch tactic in air combat, sometimes used when all else has failed. Long before the invention of aircraft, ramming tactics in naval warfare and ground warfare were common. The first aerial ramming was performed by Pyotr Nesterov in 1914 during the First World War. In the early stages of World War II the tactic was employed by Soviet pilots, who called it taran, the Russian word for "battering ram".

A 1944 drawing by Helmuth Ellgaard illustrating a Luftwaffe fighter ramming a B-17 Flying Fortress

A ramming pilot could use the weight of the aircraft as a ram, or they could try to make the enemy lose control of their plane, using the propeller or wing to damage the enemy's tail or a wing. Ramming took place when a pilot ran out of ammunition yet was still intent on destroying an enemy, or when the plane had already been damaged beyond saving. Most rammings occurred when the attacker's aircraft was economically, strategically or tactically less valuable than the enemy's, such as pilots flying obsolescent aircraft against superior ones, or one man risking his life to kill multiple men.[1][2][3] Defending forces resorted to ramming more often than the attackers.

A ramming attack was not considered suicidal in the same manner as kamikaze attacks—the ramming pilot stood a chance of surviving, though it was very risky. Sometimes the ramming aircraft itself could survive to make a controlled landing, though most were lost due to combat damage or the pilot bailing out. Ramming was used in air warfare in the first half of the 20th century, in both World Wars and in the interwar period. With jet aircraft, as air combat speeds increased, ramming became disused—the probability of successfully executing (and surviving) a ramming attack approached impossibility. However, the tactic is still possible in modern warfare.

Technique

Three types of ramming attacks were made:[1]

• Using the propeller to go in from behind and chop off the controls in the tail of the enemy aircraft. This was the most difficult to perform, but it had the best chance of survival.
• Using the wing to damage the enemy or force a loss of control. Some Soviet aircraft like the Polikarpov I-16 had wings strengthened for this purpose.
• Direct ramming using the whole aircraft. This was the easiest but also the most dangerous option.

The first two options were always premeditated but required a high level of piloting skill. The last option might be premeditated or it might be a snap decision made during combat; either way it often killed the attacking pilot.[1]

History

In Jules Verne's novel Robur the Conqueror, Robur almost rams his propeller-powered flying vessel Albatross into the slower blimp Goahead

Lt Wilbert Wallace White

Early concepts

Presaging the 20th century air warfare ramming actions, Jules Verne imagined an apparent aerial attack made by a heavy flying machine with a prominent ram prow against a nearly defenseless lighter-than-air craft in his science fiction work Robur the Conqueror, published in 1886. H. G. Wells, writing in 1899 in his novel The Sleeper Awakes, has his main character, Graham, ram one of the enemy's aeroplanes with his flying apparatus, causing it to fall out of the sky. A second enemy machine ceases its attack, afraid of being rammed in turn.[4]

In 1909, the airship was imagined as an "aerial battleship" by several observers who wrote about the possibility of using an extended ramming pole to attack other airships, and to swing an anchor or other mass on a cable below the airship as a blunt force attack against ground-based targets such as buildings and smokestacks, and against ship masts.[5]

World War I

Ramming attack performed by Pyotr Nesterov

Albatros aircraft brought down by Nesterov

The first known instance of ramming in air warfare was made over Zhovkva by the Russian pilot Pyotr Nesterov on 8 September 1914, against an Austrian plane. That incident was fatal to both parties. The second ramming—and the first successful ramming that was not fatal to the attacker—was performed in 1915 by Alexander Kazakov, a flying ace and the most successful Russian fighter pilot of World War I.[6] Sgt Arturo Dell'Oro of the Italian 83rd Squadron rammed a two-man Br.C.1 of Flik 45 on 1 September 1917. Wilbert Wallace White of the 147th Aero Squadron rammed a German plane on 10 October 1918, and was killed — his opponent survived.

Polish-Soviet War

As the advancing Red Army used very few aircraft in Poland, air combat rarely took place (except for interceptions of Bolshevik observation balloons). However, during the course of the war, several pilots, having depleted their ammunition and bombs, attempted to ram Soviet cavalry with their aircraft's undercarriages.[7] This attack would allow an opportunity for an emergency landing, but it almost always ended with the destruction of, or serious damage to, the ramming aircraft.

Spanish Civil War

Ramming was used in the Spanish Civil War. On the night of 27–28 November 1937, Soviet pilot Evgeny Stepanov, flying a Polikarpov I-15 for the Spanish Republican Air Force, shot down one SM.81 bomber near Barcelona and emptied the rest of his bullets into another. The second SM.81 continued to fly, so Stepanov resorted to using the left leg of his Chaika's undercarriage to ram the bomber, downing the plane.[8]

Poland

The Polish Air Force pilot Lieutenant Colonel Leopold Pamuła carried out the first taran attack in World War II, on 1 September 1939 over Łomianki near Warsaw, with his damaged PZL P.11c.

Soviet Union

In World War II, reports of ramming by lone Soviet pilots against the Luftwaffe became widespread, especially in the early days of the hostilities in the war's Eastern Front. In the first year of the Great Patriotic War, most available Soviet machines were markedly inferior to the German ones and pilots sometimes perceived a taran as the only way to guarantee the destruction of the enemy. Early Soviet fighter engines were relatively weak, and the underpowered fighters were either fairly well-armed but too slow, or fast but too lightly armed.[1] Lightly armed fighters often expended their ammunition without bringing down the enemy bomber. Very few fighters had radios installed—the pilots had no way to call for assistance and the military expected them to solve problems alone.[1] Trading a single fighter for a multi-engine bomber was considered economically sound.[1] In some cases, pilots who were heavily wounded or in damaged aircraft decided to perform a suicidal attack against air, ground or naval targets. In this instance, the attack becomes more like an unpremeditated kamikaze attack (see Nikolai Gastello).

German air tactics early in the war changed in a way that created conditions ripe for ramming attacks.[1] After clearing much of Soviet airpower from their path, the Luftwaffe stopped providing fighter escort for bombing groups, and split their forces into much smaller sorties, including single aircraft making deep penetration flights. One quarter of German aircraft on the Eastern Front had the task of performing strategic or tactical reconnaissance[1] with their Aufklärungsgruppe units. These reconnaissance or long-range bombing flights were more likely to encounter lone Soviet defenders. Soviet group tactics did not include taran, but Soviet fighters often sortied singly or in pairs rather than in groups. Soviet pilots were prohibited from performing taran over enemy-held land, but could ram enemy reconnaissance penetrations over the homeland.[1]

Nine rammings took place on the very first day of the German invasion of the Soviet Union, one within the first hour. At 0425 hours on 22 June 1941, Lieutenant Ivan Ivanov drove his Polikarpov I-16 into the tail of an invading Heinkel He 111.[1] Ivanov did not survive but was posthumously awarded the gold star, Hero of the Soviet Union.[9]

Yekaterina Zelenko on 12 September 1941 supposedly performed a diving ramming attack in her Su-2, which tore a Messerschmitt Bf 109 in two as the propeller of her plane hit the German aircraft's tail. She remains the only woman ever alleged to have performed an aerial ramming.[10]

After 1943 more Soviet fighters had radios installed, and Chief Marshall Alexander Novikov developed air-control techniques to coordinate attacks. The fighters had more powerful engines, and in the last year of battle they carried sufficiently heavy armament. As Soviet air-attack options improved, ramming became a rare occurrence. In 1944, future Air Marshall Alexander Pokryshkin officially discouraged the taran, limiting it to "exceptional instances and as an extreme measure".[1]

Lieutenant Boris Kovzan survived a record four ramming attacks in the war. Aleksei Khlobystov made three.[11] Seventeen other Soviet pilots were credited with two successful ramming attacks. According to new research, at least 636 successful taran attacks were made by Soviets between the beginning of Operation Barbarossa and the end of the war.[12] Of these, 227 pilots were killed during the attack or afterwards (35.7%), but 233 landed safely (the rest bailed out).[12]

As new Soviet fighter designs went into service, ramming was discouraged. The economics had shifted; now the Soviet fighter was roughly equivalent to the German one.[1][13] By September 1944, orders describing how and when to initiate the ramming attack were removed from training materials.[14]

United Kingdom and Commonwealth

On 18 August 1940, Royal Air Force Volunteer Reserve Sergeant Bruce Hancock of No.6 SFTS from RAF Windrush used his Avro Anson aircraft to ram a Heinkel He 111P; there were no survivors.[15]

On the same day Flight Lieutenant James Eglington Marshall of No. 85 Squadron RAF used his Hawker Hurricane to ram the tail unit of a Heinkel He 111 after he had expended the last of his ammunition on it. The Hurricane's starboard wing tip broke off in the attack and the Heinkel was assessed as "probably destroyed".

Zehbe's Dornier falling on Victoria Station after being rammed by Ray Holmes, 15 September 1940

A significant event took place on 15 September 1940, now known as "Battle of Britain Day". Flight Sergeant Ray Holmes of No. 504 Squadron RAF used his Hawker Hurricane to destroy a Dornier Do 17 bomber over London by ramming but at the loss of his own aircraft (and almost his own life) in one of the defining moments of the Battle of Britain. Holmes, making a head-on attack, found his guns inoperative. He flew his plane into the top-side of the German bomber, cutting off the rear tail section with his wing and causing the bomber to dive out of control and crash. Its pilot, Oberleutnant Robert Zehbe, bailed out, only to die later of wounds suffered during the attack, while the injured Holmes bailed out of his plane and survived.[16] Two other crewmen of the Dornier bailed out and survived. As the RAF did not practice ramming as an air combat tactic, this was considered an impromptu manoeuvre, and an act of selfless courage. This event became one of the defining moments of the Battle of Britain and elicited a congratulatory note to the RAF from Queen Wilhelmina of the Netherlands, who had witnessed the event.[17]

On 27 September 1940, Flying Officer Percival R. F. Burton (South African) of No. 249 Squadron RAF used his Hawker Hurricane to tear off the tail unit of a Messerschmitt Bf 110 of V/LG 1. According to eyewitnesses on the ground, Burton deliberately rammed the Bf 110 after a "wildly manoeuvring" chase at rooftop height over Hailsham, England. Burton, Hauptmann Horst Liensberger and Unteroffizier Albert Kopge were all killed when both aircraft crashed just outside town. Burton's Hurricane was found exhausted of ammunition.[18]

On 7 October 1940, Pilot Officer Ken W. Mackenzie of No. 501 Squadron RAF used his Hawker Hurricane to destroy a Messerschmitt Bf 109. His Combat Report read:

I attacked the three nearest machines in vic formation from beneath and a fourth enemy aircraft doing rear-guard flew across the line of fire and he developed a leak in the glycol tank... I emptied the rest of my ammunition into him from 200 yards but he still flew on and down to 80, to 100 feet off the sea. I flew around him and signalled him to go down, which had no result. I therefore attempted to ram his tail with my undercarriage but it reduced my speed too low to hit him. So flying alongside I dipped my starboard wing-tip onto his port tail plane. The tail plane came off and I lost the tip of my starboard wing. The enemy aircraft spun into the sea and partially sank.[19]

On 11 November 1940, Flight Lieutenant Howard Peter Blatchford (Canadian) of No. 257 Squadron RAF used the propeller of his Hawker Hurricane to attack a Fiat CR.42 near Harwich, England. Blatchford had used up his ammunition during a mêlée with Italian fighters, and upon returning to base discovered two of his propeller blades missing nine inches. Although he did not see the results of his attack and only claimed the Italian fighter as "damaged", he did report splashes of blood on his damaged propeller.[20]

Although technically not ramming, RAF pilots did use an intentional collision of sorts against the V-1 flying bomb. When it was discovered that shooting a V-1 could detonate the warhead and/or fuel tank, thereby endangering the attacking aircraft, pilots would instead fly beside the V-1. Once in position, the pilot would roll to one side, lifting his wingtip to produce an area of high-pressure turbulence beneath the wingtip of the V-1, causing it to roll in the opposite direction. The rudimentary automatic pilot of the V-1 was often not able to compensate, sending it diving into the ground.

Greece

On 2 November 1940, Hellenic Air Force pilot Marinos Mitralexis shot down one Italian Savoia-Marchetti SM.79 bomber; then, out of ammunition, brought another down by smashing its rudder with the propeller of his PZL P.24 fighter. Both aircraft were forced into emergency landings, and Mitralexis threatened the bomber's four-man crew into surrender using his pistol. Mitralexis was promoted in rank and awarded medals.[21][22][23]

Japan

Crew of the Boeing B-29 Superfortress "Gallopin' Goose". It was lost on December 7, 1944 when it was rammed by a Kawasaki Ki-45 "Nick" being flown by Sgt. Shinobu Ikeda of the 25th Dokuritsu Chutai. Only the tail gunner was able to bail-out.

The Japanese also practised ramming, both by individual initiative and by policy. Individual initiative saw a Nakajima Ki-43 fighter plane bringing down a lone B-17 Flying Fortress, The Fighting Swede, on 8 May 1942. After three of the Japanese fighters had each made two attack passes without decisive results, the bomber's pilot, Major Robert N. Keatts, made for the shelter of a nearby rain-squall. Loath to let the bomber escape, Sgt. Tadao Oda executed a head-on ramming attack, known as taiatari (体当たり, tai-atari, "body strike").[24] Both aircraft crashed with no survivors. Sergeant Oda was posthumously promoted to lieutenant for his sacrifice.[25]

On 26 March 1943, Lieutenant Sanae Ishii of the 64th Sentai used the wing of his Nakajima Ki-43 to ram the tail of a Bristol Beaufighter, bringing it down over Shwebandaw, Burma, killing both Squadron Leader Ivan G. Statham AFC and Pilot Officer Kenneth C. Briffett of 27 Squadron RAF.

On 1 May 1943 Sergeant Miyoshi Watanabe of the 64th Sentai knocked out two engines of a B-24 Liberator piloted by Robert Kavanaugh, killing two of the bombers crew; he then used his Nakajima Ki-43 to ram the rear turret of the American bomber after a drawn-out battle over Rangoon. Sergeant Watanabe survived the attack, as did the remaining B-24 crew. Both planes made a forced landing without further loss of life. The crashed B-24 was photographed and appeared in the December 1943 Japanese aviation magazine Koku Asahi.[26] Only three of Kavanaugh's crew survived the war under harsh conditions as POWs.[27]

On 26 October 1943 Corporal Tomio Kamiguchi of the 64th Sentai used his Nakajima Ki-43 to ram a B-24 Liberator, when his guns failed to fire during a sustained attack lasting over 50 minutes by Ki-43II and Kawasaki Ki-45s of 21st Sentai. The engagement included approximately 50 two-ship passes on the B-24s after they attacked Rangoon. Nearing the Bay of Bengal and already heavily damaged by the other Japanese fighters in the 64th, the bomber, belonging to the 492nd Bomb Squadron and piloted by 1st Lt. Roy G. Vaughan, crashed in the jungle approaching Gwa Bay. Bombardier 2nd Lt. Gustaf 'Gus' Johnston was the sole survivor of the B-24 and became a POW. Kamiguchi was thrown clear in the impact, parachuted, and also survived. American researcher Matthew Poole notes that Japanese historian Hiroshi Ichimura interviewed 64th Sentai veteran Lt. Naoyuki Ito, who also claimed to have shot down a B-24 of the 492nd BS on 26 October 1943. The B-24 was claimed to have been shot down by two experienced Japanese aces: Lt. Naoyuki Ito and Sgt. Major Takuwa. In addition, Ito stated that 19-year-old green pilot Cpl. Kamiguchi rammed the crippled B-24, and General Major Shinichi Tanaka praised the brave young pilot and made "Corporal Saw" a legend on purpose. Another 64th Sentai veteran, Sgt. Ikezawa, recalled that a sullen Sgt. Major Takuwa said to him "The B-24 was going down. Kamiguchi did not need to ram it!"[28] I. Hata, Y. Izawa, and C. Shores in Japanese Army Air Force Fighter Units and Their Aces 1939–1945 includes the biography of Capt. Ito of the 64th Sentai which states: “He later transferred to the 3rd Chutai, and was to claim eight victories, including a B-24 over Rangoon on 26 October 1943.”[29] According to Ichimura, Sgt. Maj. Takuwa's account was not included in this source, as only aces with nine or more victories were given a biography in the book.

On 6 June 1944, having expended his ammunition in an extended dogfight, Sergeant Tomesaku Igarashi of the 50th Sentai used the propeller of his Nakajima Ki-43 to bring down a Lockheed P-38 Lightning near Meiktila, Burma. After the pilot bailed out, Igarashi attacked him in his parachute.[30] The P-38 may have belonged to 10-kill ace Captain Walter F. Duke of the 459th Fighter Squadron who went missing in battle that day.[31] Sergeant Shinobu Ikeda of the 25th Dokuritsu Chutai rammed his Ki-45 into Cpt. Roger Parrish's B-29 "Gallopin Goose" (42-6390) on 7 December over Mukden.[32][33][34] Sgt. Ikeda and all except one crew member of the B-29 perished.[34][32]

Starting in August 1944, several Japanese pilots flying Kawasaki Ki-45 and other fighters engaging B-29 Superfortresses found that ramming the very heavy bomber was a practical tactic.[35] From that experience, in November 1944 a "Special Attack Unit" was formed using Kawasaki Ki-61s that had been stripped of most of their weapons and armor so as to quickly achieve high altitude. Three successful surviving ramming pilots were the first recipients of the Bukosho, Japan's equivalent to the Victoria Cross or Medal of Honor, an award which had been inaugurated on 7 December 1944 as an Imperial Edict by Emperor Hirohito.[36][37] Membership in the Special Attack Unit was seen as a final assignment; the pilots were expected to perform ramming attacks until death or serious injury stopped their service.

The Japanese practice of kamikaze may also be viewed as a form of ramming, although the primary mode of destruction was not physical impact force, but rather the explosives carried. Kamikaze was used exclusively against Allied ship targets.

Bulgaria

Two rammings (Bulgarian: Таран, romanized: taran) were performed by Bulgarian fighter pilots defending Sofia against Allied bombers in 1943 and 1944. The first one was by poruchik (Senior Lieutenant) Dimitar Spisarevski on 20 December 1943. Flying a Bf 109 G2 fighter, he rammed and destroyed American B-24 Liberator #42-73428 of the 376th Bomb Group, though it is unknown whether the collision was intentional.[38] The Bulgarian military said it was deliberate, and increased his rank posthumously.[39] The second ramming was performed by poruchik Nedelcho Bonchev on 17 April 1944 against an American B-17 Flying Fortress.[40] Bonchev succeeded in bailing out and surviving after the ramming. After the fall of the Third Bulgarian Kingdom 9 September 1944 he went on flying against the Germans. His Bf 109 was shot down during a mission and he was wounded and taken captive. After several months in captivity, he was killed by a female SS guard during a POW march which he could not take, owing to his critical health condition.[41]

Germany

On 22 February 1944 a Messerschmitt Bf 109 rammed B-17 231377 of the 327th Bombardment Squadron.[42]

On 25 May 1944 Oberfähnrich Hubert Heckmann used his Messerschmitt Bf 109 to ram a P-51 Mustang when his guns malfunctioned, severing the tail and rear fuselage from the American aircraft. Captain Joseph H. Bennett of the 336th Fighter Squadron managed to bail out to captivity, while Heckmann made an immediate belly landing near Botenheim, Germany.

On 7 July 1944 Unteroffizier Willi Reschke used his Messerschmitt Bf 109 to ram a Consolidated B-24 Liberator when his guns malfunctioned. The two falling aircraft were locked together, and it was some time before Reschke was able to free himself and bail out near Malacky, Slovakia.

Late in World War II, the Luftwaffe used ramming to try to regain control of the air. The plan was to dissuade Allied bomber pilots from conducting bombing raids long enough for the Germans to create a significant number of Messerschmitt Me 262 jet fighters to turn the tide of the air war. On 4 April 1945 Heinrich Ehrler rammed a B-24 and was killed. Only a single dedicated unit, Sonderkommando Elbe, was ever formed to the point of being operational, and flew their only mission – only a month before the end of the war in Europe – on 7 April 1945. Although some pilots succeeded in destroying bombers, including one ramming during the sole mission that took out two B-24s at once with one Bf 109G, Allied numbers were not significantly reduced. Perhaps the most famous example of aerial ramming carried out by Elbe that resulted in the pilot surviving ramming their plane during this mission was that of Heinrich Rosner's Bf 109 vs. B-24 44-49533 "Palace of Dallas", which was leading a formation of B-24s of the 389th Bombardment Group at the time. Rosner's plane sliced through the cockpit of "Palace of Dallas" with its wing, destroying the bomber and crippling the Bf-109, which then collided with an additional unidentified B-24. Rosner was able to successfully bail out and parachute to safety.[43]

Projects of aircraft such as the Zeppelin Rammer were intended to use the ramming technique.[44]

France

On 3 August 1944, Captain Jean Maridor of No. 91 Squadron RAF used his Supermarine Spitfire to ram a V-1 flying bomb, killing himself when the warhead detonated. Capitaine Maridor had previously damaged the V-1 with his cannon fire, and seeing it begin to dive onto a military field hospital in Kent, chose to deliberately ram the bomb.[45]

United States

On 25 October 1942 over Guadalcanal, Marine First Lieutenant Jack E. Conger of VMF-212 shot down three Misubishi A6M Zeros. Pursuing a fourth Zero, Conger ran out of ammunition and decided to use his propellor to chop the tail rudder off. However, Conger misjudged the distance between his plane and the Zero and struck the plane halfway between the cockpit and the tail, tearing the entire tail off. Both Conger and the Zero pilot, Shiro Ishikawa, bailed out of their planes and were picked up by a rescue boat. For his actions, Conger was awarded the Navy Cross.[46][47]

On 10 May 1945 over Okinawa, Marine First Lieutenant Robert R. Klingman and three other pilots of VMF-312 climbed to intercept an aircraft they identified as a Kawasaki Ki-45 Toryu ("Nick") twin-engined heavy fighter flying reconnaissance at 25,000 feet (7,600 m), but the "Nick" began climbing higher. Two of the FG-1D Corsairs ceased their pursuit at 36,000 feet (11,000 m), but Marine Captain Kenneth Reusser and his wingman Klingman continued to 38,000 feet (12,000 m), expending most of their .50 caliber ammunition to lighten their aircraft. Reusser scored hits on the "Nick's" port engine, but ran out of ammunition, and was under fire from the Japanese rear gunner. Klingman lined up for a shot at a distance of 50 feet (15 m) when his guns jammed due to the extreme cold. He approached the "Nick" three times to damage it with his propeller, chopping away at his opponent's rudder, rear cockpit, and right stabilizer. The Toryu spun down to 15,000 feet (4,600 m) where its wings came off. Despite missing five inches (13 cm) from the ends of his propeller blades, running out of fuel and having an aircraft dented and punctured by debris and bullets, Klingman safely guided his Corsair to a deadstick landing.[48] He was awarded the Navy Cross.[49]

Cold War

In the 1960 U-2 incident, Soviet pilot Igor Mentyukov was scrambled with orders to ram the intruding Lockheed U-2, using his unarmed Sukhoi Su-9 which had been modified for higher altitude flight. In 1996, Mentyukov claimed that contact with his aircraft's slipstream downed Gary Powers; however, Sergei Khrushchev asserted in 2000 that Mentyukov failed even to gain visual contact.

On 28 November 1973, during the CIA's Project Dark Gene, Captain Gennadii N. Eliseev, flying a MiG-21, made the first jet-to-jet ramming attack against an RF-4C reconnaissance aircraft piloted by IIAF Major Shokouhnia and backseater USAF Colonel John Saunders over Soviet airspace. After both his K-13 air to air missiles failed to down the RF-4C and his gun jammed, he struck the RF-4C's tail assembly with his wing. While the MiG pilot died, the RF-4C crew ejected successfully.

On 18 July 1981 Captain V.A. Kulyapin reportedly used his Su-15 to ram a chartered Argentine CL-44 during the 1981 Armenia mid-air collision, although Western experts believed this likely to have been a self-serving interpretation of an accidental collision.

A 1986 RAND Corporation study concluded that the ramming attack was still a viable option for modern jets defending their airspace from long-range bombers if those bombers were carrying atomic weapons. The study posited that defending fighters might expend their weapons without downing the enemy bomber, and the pilots would then be faced with the final choice of ramming—almost certainly trading their lives to save the thousands who might be killed by a successful nuclear attack.[1]

After 1990

During the 9/11 attacks in 2001, fighter jets were dispatched to intercept the hijacked United Airlines Flight 93, believed to be heading to Washington. However, there was no time for the combat jets to be armed with missiles. The pilots were informed that they would be ramming the aircraft.[50] The plane crashed due to an internal struggle by the time the jets arrived.

See also

• Mid-air collision

References

Notes

1. Quinlivan, J.T. (February 1986). "The Taran: Ramming in the Soviet Air Force" (PDF). RAND Corporation. Retrieved 9 November 2011.
2. Whiting, Kenneth R. (1991). "The Soviet Air Force Against Germany and Japan". In Benjamin Franklin Cooling (ed.). Case Studies in the Achievement of Air Superiority. Air Force History and Museums Program. p. 195. ISBN 0-912799-63-3.
3. Boyd, Alexander (1977). The Soviet Air Force Since 1918. Stein and Day. p. 117. ISBN 9780812822427.
4. The Project Gutenberg Etext of When the Sleeper Wakes, by Wells. #7 in our series by H. G. Wells.
5. Dienstbach, Carl; MacMechen, T.R. (September 1909). "Fighting In The Air". American Aeronaut. 1 (2): 51–62.
6. Durkota et al, p. 60.
7. "Skrzydła" (in Polish). Cristeros1.w.interia.pl. Archived from the original on 2009-04-06. Retrieved 2013-07-20.
8. "Interview with World War II Russian Pilot Evgeny Stepanov". History Net: Where History Comes Alive – World & US History Online. Archived from the original on 6 March 2008. Retrieved 15 March 2015.
9. Hardesty 1991
10. Chudinova, Svetlana; Simonov, Andrey (2017). Женщины - Герои Советского Союза и России (in Russian). Russkie Viti︠a︡zi. p. 61. ISBN 978-1585101603.
11. Morgan, Hugh; Weal, John (2013-02-20). Soviet Aces of World War 2. Osprey Publishing. p. 16. ISBN 9781472800572.
12. Jaśkiewicz, Łukasz; Matus, Yury. Tarany powietrzne w wielkiej wojnie ojczyźnianej w drugim okresie wojny, "Lotnictwo" 7-8/2017 (in Polish), p.93-97
13. Hardesty, Von. Red Phoenix: The Rise of Soviet Air Power 1941–1945. Smithsonian, 1991, p. 29. ISBN 0-87474-510-1
14. Axell, Albert; Kase, Hideaki (2002). Kamikaze: Japan's Suicide Gods. Longman. p. 227. ISBN 9780582772328.
15. RAF Windrush
16. Those Other Eagles, Shores, (2004)
17. "Alfred Keith Ogilvie Battle of Britain Pilot with 609 Squadron." Archived 2003-05-09 at the Wayback Machine lycos.co.uk. Retrieved: 25 July 2009.
18. Saunders, Andy (19 Oct 2014). Arrival of Eagles : Luftwaffe Landings in Britain 1939–1945. London: Grub Street. pp. 40–46. ISBN 978-1909808126.
19. "Hawker Hurricane V6799 SD-X". Jet Age Museum. Retrieved 16 July 2012.
20. "The Falco and Regia Aeronautica in the Battle of Britain". Håkan Gustavsson. Retrieved 16 August 2012.
21. Piekalkiewicz Janusz, Van Heurck Jan (1985). The air war, 1939–1945. Blandford Press. ISBN 978-0-918678-05-8.
22. Martin Windrow (1970). Aircraft in profile, Volume 8. Doubleday.
23. History of the Hellenic Air Force, Vol. III, 1930–1941 (in Greek). Hellenic Air Force Publications. 1980. Archived from the original on 2011-09-20.
24. Hastings 2008, p. 164
25. Pacific Wrecks. B-17F "Fighting Swede" Serial Number 41-24520
26. Edward M. Young (20 November 2012). B-24 Liberator Units of the CBI. Osprey Publishing. pp. 19–. ISBN 978-1-78200-690-9.
27. "I'll remember you . . .Long-time Madison County extension agent Ross Garrett keeps alive the memory of the crewmembers with whom he was shot down over Burma in World War II". The Madisonville Meteor. Retrieved 15 March 2015.
28. Hiroshi Ichimura (20 October 2012). Ki-43 'Oscar' Aces of World War 2. Bloomsbury Publishing. pp. 36–. ISBN 978-1-84603-861-7.
29. Ikuhiko Hata; Yasuho Izawa; Christopher Shores (2012). Japanese Army Fighter Aces, 1931–45. Stackpole Books. pp. 206–. ISBN 978-0-8117-1076-3.
30. Hata, Ikuhiko; Izawa, Yashuho; Shores, Christopher (2012). Japanese Army Fighter Aces: 1931–45. Stackpole Books. p. 203. ISBN 978-0811710763.
31. Hammel, Eric (2010). Air War Pacific. Pacifica Military History. p. 377. ISBN 978-1890988104.
32. Joseph 2012, p. 266.
33. Mann 2009, p. 67.
34. Birdsall 1980, p. 79.
35. Takaki and Sakaida 2001.
36. Sakaida 1997, pp. 67–70.
37. Bukosho described. Retrieved: 3 June 2008.
38. "Tom Philo – History News on selected Topics in 2008". Taphilo.com. Retrieved 2013-07-20.
39. "Bulgaria Marks 65 Years since Death of Fighter Pilot Hero". Novinite.com. 2008-12-21. Retrieved 2013-07-20.
40. "Vstoyano". Archived from the original on 2009-08-21. Retrieved 2011-01-13.
41. "YouTube". Archived from the original on 23 July 2015. Retrieved 15 March 2015.
42. 92nd Bomb Group memorial
43. "Deadliest Missions of The Luftwaffe: Flying Battering Rams".
44. "Zeppelin "Rammer" Luft '46 entry". Retrieved 15 March 2015.
45. Thomas, Andrew. V1 Flying Bomb Aces. Botley, Oxford, UK: Osprey Publishing, 2013. ISBN 9781780962924
46. Stephen Coonts (29 April 2003). War in the Air. ISBN 9780743464529.
47. "World War II: The Cactus Air Force Fought at Guadalcanal". Historynet.
48. Tillman 1979, pp. 148–149.
49. Sherrod 1952, pp. 392–393.
50. Penney, Heather. "Heather Penney, the 9/11 fighter pilot, says celebrating normalcy is a way to honor heroes". The Washington Post. Retrieved 6 December 2015.

Bibliography

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