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What (who) is LNA & BF - definition
WIKIMEDIA DISAMBIGUATION PAGE
LNA (disambiguation)
BF model
BF theory; Bf model
The BF model or BF theory is a topological field, which when quantized, becomes a topological quantum field theory. BF stands for background field B and F, as can be seen below, are also the variables appearing in the Lagrangian of the theory, which is helpful as a mnemonic device.
Messerschmitt Bf 109
![Bf 109A from the [[Condor Legion]] during [[Spanish Civil War]] (1936–1939)](https://commons.wikimedia.org/wiki/Special:FilePath/Bf 109A from the Condor Legion with Nationalist Spain markings.jpg?width=200 "Bf 109A from the [[Condor Legion]] during [[Spanish Civil War]] (1936–1939)")
.jpg?width=200 "Bf 109E-3 in flight, 1940")
![Bf 109F-4 of [[JG 3]] near [[Reims]], France](https://commons.wikimedia.org/wiki/Special:FilePath/Bf 109 F4 9 JG3 5582.JPG?width=200 "Bf 109F-4 of [[JG 3]] near [[Reims]], France")
![''[[JG 53]]'' Bf 109E-3, c. 1939/1940](https://commons.wikimedia.org/wiki/Special:FilePath/Bundesarchiv Bild 101I-337-0036-02A, Im Westen, Feldflugplatz mit Me 109.jpg?width=200 "''[[JG 53]]'' Bf 109E-3, c. 1939/1940")
![Luftwaffe ground-crew positioning a Bf 109G-6 equipped with the [[Rüstsatz]] VI underwing gondola cannon kit. Note the slat on the leading edge of the port wing. [[JG 2]], France, late 1943.](https://commons.wikimedia.org/wiki/Special:FilePath/Bundesarchiv Bild 101I-487-3066-04, Flugzeug Messerschmitt Me 109.jpg?width=200 "Luftwaffe ground-crew positioning a Bf 109G-6 equipped with the [[Rüstsatz]] VI underwing gondola cannon kit. Note the slat on the leading edge of the port wing. [[JG 2]], France, late 1943.")
![Freely moving, automatic [[leading edge slats]] on a Bf 109E. By using high-lift devices, the handling qualities of the Bf 109 were considerably enhanced.](https://commons.wikimedia.org/wiki/Special:FilePath/Bundesarchiv Bild 146-1980-005-05, Flügel einer Messerschmitt Me 109.jpg?width=200 "Freely moving, automatic [[leading edge slats]] on a Bf 109E. By using high-lift devices, the handling qualities of the Bf 109 were considerably enhanced.")
![[[Hispano Aviación HA-1112]] ''Buchon'', the second and last Spanish version built by [[Hispano Aviación]]](https://commons.wikimedia.org/wiki/Special:FilePath/Hispano Aviación Ha 1112 Buchon.jpeg?width=200 "[[Hispano Aviación HA-1112]] ''Buchon'', the second and last Spanish version built by [[Hispano Aviación]]")
![A Bf 109E at the [[Royal Air Force Museum London]] with its wings temporarily removed, 2016](https://commons.wikimedia.org/wiki/Special:FilePath/Messerschmitt Bf109E-4-B ‘4101 - Black 12’ (DG200) (33115891765).jpg?width=200 "A Bf 109E at the [[Royal Air Force Museum London]] with its wings temporarily removed, 2016")
![MG FF]] installations in the wing.](https://commons.wikimedia.org/wiki/Special:FilePath/Messerschmitt Bf 109E.jpg?width=200 "MG FF]] installations in the wing.")
![Finnish Messerschmitt Bf 109G-2s during the [[Continuation War]]](https://commons.wikimedia.org/wiki/Special:FilePath/Messerschmitt Bf 109G-2.jpg?width=200 "Finnish Messerschmitt Bf 109G-2s during the [[Continuation War]]")
![A Bf 109E-3 of the [[Swiss Air Force]] at the [[Flieger-Flab-Museum]]](https://commons.wikimedia.org/wiki/Special:FilePath/Swiss Messerschmitt Bf 109-E3 top left view.jpg?width=200 "A Bf 109E-3 of the [[Swiss Air Force]] at the [[Flieger-Flab-Museum]]")
1935 FIGHTER AIRCRAFT FAMILY BY MESSERSCHMITT
Bf-109; BF 109; Bf 109; Messerschmitt Me 109; Me-109 fighter; Messerschmitt 109; Me109; Me-109; Messerschmitt Bf-109; Bf109; Me 109; Messerschmitt Me Bf 109; Messerschmitt Me109; Messerschmitt Me-109; ME 109; Messerschmitt Bf109; Bf.109; ME-109; Bf-109 fighter; BF109; Messerschmitt Bf 109 V10; Messerschmitt Bf 109 V17
The Messerschmitt Bf 109 is a German World War II fighter aircraft that was, along with the Focke-Wulf Fw 190, the backbone of the Luftwaffe's fighter force. The Bf 109 first saw operational service in 1937 during the Spanish Civil War and was still in service at the end of World War II in 1945.
Messerschmitt Bf 110
![Bf-110 G-4 cockpit; [[RAF Museum London]].](https://commons.wikimedia.org/wiki/Special:FilePath/Bf-110 G-4 cockpit RAF Museum London.jpg?width=200 "Bf-110 G-4 cockpit; [[RAF Museum London]].")
![Bf 110 E-1, Ergänzungs-Schlachtgruppe, Dęblin-Irena ([[Poland]] 1942).](https://commons.wikimedia.org/wiki/Special:FilePath/Bf 110 end.jpg?width=200 "Bf 110 E-1, Ergänzungs-Schlachtgruppe, Dęblin-Irena ([[Poland]] 1942).")
![FuG 202/212]] use](https://commons.wikimedia.org/wiki/Special:FilePath/Bundesarchiv Bild 101I-659-6436-12, Flugzeug Messerschmitt Me 110.jpg?width=200 "FuG 202/212]] use")
![Bf 110s in flight above [[Budapest]], 1944](https://commons.wikimedia.org/wiki/Special:FilePath/Bundesarchiv Bild 101I-669-7340-27, Flugzeuge Me 110 über Budapest.jpg?width=200 "Bf 110s in flight above [[Budapest]], 1944")
![A Bf 110 G-4 [[night fighter]] at the [[RAF Museum]] in [[London]].](https://commons.wikimedia.org/wiki/Special:FilePath/ME-110G-2 at RAF Hendon.jpg?width=200 "A Bf 110 G-4 [[night fighter]] at the [[RAF Museum]] in [[London]].")
![Bf 110 with twin 900-litre drop tanks with vertical fins, from 9.''Staffel''/[[ZG 26]], on a [[Regia Aeronautica]] photo](https://commons.wikimedia.org/wiki/Special:FilePath/Me110.jpg?width=200 "Bf 110 with twin 900-litre drop tanks with vertical fins, from 9.''Staffel''/[[ZG 26]], on a [[Regia Aeronautica]] photo")
![A captured Bf 110C-5 in the service of [[No. 1426 Flight RAF]]](https://commons.wikimedia.org/wiki/Special:FilePath/Me 110C-5 RAF NAN15Jun43.jpg?width=200 "A captured Bf 110C-5 in the service of [[No. 1426 Flight RAF]]")
![Bf 110 ''Werk Nr.'' 5052, Deutsches Technikmuseum Berlin. The [[noseart]] emblem on this aircraft is the [[dachshund]] of 10.(Z)/[[JG 5]].](https://commons.wikimedia.org/wiki/Special:FilePath/Me 110 G-4.JPG?width=200 "Bf 110 ''Werk Nr.'' 5052, Deutsches Technikmuseum Berlin. The [[noseart]] emblem on this aircraft is the [[dachshund]] of 10.(Z)/[[JG 5]].")
1936 HEAVY FIGHTER FAMILY BY MESSERSCHMITT
Messerschmitt Me 110; Messerschmitt Bf110; Messerschmitt 110; Bf 110; Me 110; Messerschmitt Bf-110; Messerschmitt Bf 110C; Messerschmidt Bf-110; Messerschmitt Me110; Bf-110; Me110; Messerschmitt Me-110; Me-110; Bf110; Dackelbauch; Bf-110 Zerstorer; BF110; Messerschmitt Bf 110D; Messerschmitt Me 110G-2; Messerschmitt 110G; Messerschmitt Bf 110G-2; Messerschmitt Bf 110C-4; Messerschmitt Bf 110G-4; Messerscmitt Bf 110C; Messerschmitt Bf one hundred ten; Messerschmidt Me.110
The Messerschmitt Bf 110, often known unofficially as the Me 110,Because it was built before Bayerische Flugzeugwerke became Messerschmitt AG in July 1938, the Bf 110 was never officially given the designation Me 110. is a twin-engine (Destroyer, heavy fighter), fighter-bomber (Jagdbomber or Jabo), and night fighter (Nachtjäger) developed in Nazi Germany in the 1930s and used by the Luftwaffe during World War II.
