Paul Zorner

A map of part of the Kammhuber Line. The 'belt' and night fighter 'boxes' are shown.

Following the 1939 aerial Battle of the Heligoland Bight, bombing missions by the Royal Air Force (RAF) shifted to the cover of darkness, initiating the Defence of the Reich campaign.[8] By mid-1940, Generalmajor (Brigadier General) Josef Kammhuber had established a night air defense system dubbed the Kammhuber Line. It consisted of a series of control sectors equipped with radars and searchlights and an associated night fighter. Each sector, named a Himmelbett (canopy bed), would direct the night fighter into visual range with target bombers. In 1941, the Luftwaffe started equipping night fighters with airborne radar such as the Lichtenstein radar. This airborne radar did not come into general use until early 1942.[9]

Zorner joined the German night fighter force on 20 October 1941 and was ordered to Schleißheim, Austria, to attend the Nachtjadgschule 1 (Night Fighter School 1) to begin conversion and night fighter training on the Messerschmitt Bf 110. At Schleißheim Zorner learned the rudiments of air combat and day fighter tactics which he completed on 28 December 1941. From 1 January 1942 Zorner undertook night fighter training Nachtjadgschule 1, at the Ingolstadt base.[7] On 1 April 1942 he was promoted to Oberleutnant (First Lieutenant).[6] He graduated on 20 May 1942.[7] The final phase of training was completed with Ergänzungs-Nachtjagdgruppe (Supplementary Night Hunting Group) at Stuttgart.[7]

Zorner was posted to 8. Staffel (squadron), II. Gruppe (Group) Nachtjagdgeschwader 2 (NJG 2—Night Fighter Wing 2) based at Gilze-Rijen Air Base in the Netherlands on 1 July 1942.[10][6] On 3 October 1942 Zorner was moved again, this time to 10./Nachtjagdgeschwader 3 (NJG 3—Night Fighter Wing 3), at Grove, where he remained until 5 December 1942.[10] The next day he was ordered to Wittmundhafen and appointed Staffelkapitän (squadron leader) of 2./NJG 3. Zorner held this command until 15 March 1943.[10] The Staffel was equipped with the Dornier Do 217 night fighter. Zorner disliked flying the Dornier and lobbied his commanding officer, Gruppenkommandeur Egmont Prinz zur Lippe-Weißenfeld to fly the Bf 110. Lippe-Weißenfeld agreed on the condition that he flies both operationally in rotation with other units.[11]

On the night of 17/18 January 1943 Air Officer Commanding (AOC) RAF Bomber Command, Arthur Harris ordered an attack on Berlin. 170 Avro Lancaster and 17 Handley-Page Halifax bombers carried out the operation. It was to be the last attack on the German capital until the H2S ground scanning radar became available.[12] Zorner intercepted a Halifax 45 kilometres (28 miles) northwest of Juist and shot it down at 21:55.[13] Zorner achieved this success on his 14th mission as a night fighter pilot.[11]

Bomber Command attacked Wilhelmshaven with 177 aircraft—129 Lancaster, 40 Halifax and eight Short Stirlings on 11/12 February 1943. The Pathfinders found that the Wilhelmshaven area was covered by cloud. The British marked the target by parachute flares using H2S. The naval ammunition depot at Mariensiel to the south of Wilhelmshaven blew up and caused widespread damage in the naval dockyard and in the town.[14] Zorner engaged a Lancaster 40 kilometres (25 miles) west northwest of Borkum and claimed it shot down over the North Sea.[11] Zorner was the only pilot in the Luftwaffe to claim a victory on this night.[15] One of the three crews lost in the operation flew in Lancaster I, DX-D, of No. 57 Squadron RAF. Sergeant K. T. Dutton and his six crewmembers disappeared and were listed "lost without trace."[16]

After his second victory, Geschwaderkommodore Johann Schalk warned Zorner for leaving the Do 217s idle. On Zorner's next flight, he operated the type.[11] Zorner claimed his third victory on 19 February, north of Norderney at 20:34. The bomber was recorded as a Douglas A-20 Havoc.[17] During the engagement Zorner's Dornier sustained a hit in the wing and one through the starboard engine casing causing an oil leak, necessitating a forced landing on one engine. Although Zorner claimed a probable, an anti-aircraft artillery battery had witnessed the enemy bomber flying just above the sea before it disappeared into the mist. Since its recovery was deemed impossible, he was granted the victory.[18] Zorner's victim was Vickers Wellington II, BJ1919 OW-P of No. 426 Squadron RAF piloted by Sergeant J. O. R. Gauthier.[18][19] Sergeants H. R. Bailey, F. Ruzycki, R. C. Ramsay, Flight Sergeant R. W. Ferrier and Pilot Officer C. A. McKinnon, all of RCAF, were posted missing in action. The aircraft has never been found, and likely crashed into the North Sea.[19] On the night of 26 February Zorner claimed a Short Stirling northwest of Schiermonnikoog at 20:46.[20]

Air Marshal Harris, AOC RAF Bomber Command escalated the air war in 1943 and began a concerted effort to destroy the industrial German Ruhr region through area bombing. From March to July 1943 Bomber Command began the campaign, dubbed the Battle of the Ruhr. Harris had 53 squadrons, 16 of which were medium bombers equipped with H2S terrain mapping radar.[21] Zorner's first victory in the defence of the Ruhr came on the night of the 7/8 March 1943 northeast of Norden at 20:50 when he claimed a Wellington. The only other claimant was Karl-Heinz Scherfling.[22] Zorner's victim was probably Wellington HE202, SE-Z, piloted by Sergeant Derek Cecil of No. 431 Squadron RAF. The bomber was conducting "Gardening" (minelaying operations) by the Frisian Islands when it was shot down. All five crewmen became prisoners of war.[23]

Zorner claimed another Wellington on 13/14 March at 03:51, north of Norderney, one of only two claims.[24] This machine was BK296, PT, from No. 420 Squadron RCAF. Pilot Flight Sergeant Charles Harrison Tidy and his crew were killed.[25][26] Zorner was made Staffelkapitän of 8./NJG 3 two days later.[10] In April 1943 Zorner was ordered to carry out two daylight operations against the United States Army Air Force (USAAF). Zorner found the task unsuitable for the Bf 110. A combat box of B-17 Flying Fortress bombers had eight firing positions and a formation of nine could muster over 100 guns. The Bf 110 was adjudged to be only 40 km/h (25 mph) faster and the most effective tactic, the head-on-attack, could only be executed three times for the aircraft could not position itself in front of the bomber formations quickly enough: the endurance of two hours forty-five minutes was not sufficient for these lengthy manoeuvres.[27] On the second sortie he flew Lippe-Webenfeld's Bf 110 but was hit in both wings and engines and force-landed without success near Cloppenburg.[28]

Lichtenstein cathode-ray tubes:
 • The left tube indicated other aircraft ahead as bumps.
 • The centre tube indicated range to a specific target and whether they were higher or lower.
 • The right tube indicated whether the target was to left or right.[29]

Zorner claimed his 7th victory on 28/29 June southeast of Antwerp, Belgium at 02:20. It was recorded as a Halifax bomber.[30] Another Wellington was claimed southwest of Sint-Truiden at 01:09. Zorner achieved his 10th victory west of Malmedy at 01:53.[31] Zorner's 11th victory was shot down northeast of Groningen at 03:54 on 24/25 July.[32] His victim was Lancaster R5573 flown by Flight Sergeant Kenneth Hector Wally McLean from No. 106 Squadron RAF.[33] Zorner saw the Lancaster crash and explode which resulted in a fire-work display of green, red and white flashes. They assumed the aircraft to be a pathfinder, and the flashes exploding flares. Soon afterwards Zorner and his crewman had to abandon the Bf 110G-4 because an engine caught fire. Zorner extinguished the fire but he could no longer calibrate the propeller pitch to a glide setting. The other power plant could not cope with the added workload and the Bf 110 began to lose height. Zorner ordered his crew to leave. Zorner struggled to exit as his parachute snagged. He managed to clamber back into the cockpit and lower the flaps which slowed the aircraft and afforded him time to unhook the parachute from the strengthening beam in the cockpit and parachute to safety.[34]

Zorner had to wait several weeks for another successful engagement. On 18 August 1943 Bomber Command carried out Operation Hydra, an attack on the Peenemünde Army Research Center. At 01:53 over the Baltic Sea Zorner claimed a Lancaster followed by another Lancaster over Peenemünde at 02:03—his 13th victory.[35] It was his last victory with 3./NJG 3. On 9 September 1943 he was appointed Staffelkapitän of 8./NJG 3.[10]

At the beginning of November 1943 Zorner's Bf 110G was fitted with a FuG 220 Lichtenstein SN-2 radar. The new radar was not affected by "window".[36] On the night of 18/19 November 1943 as RAF Bomber Command began their Berlin offensive and Zorner led 8. Staffel through his most successful period of operations. Operating from Lüneburg, Zorner scrambled to intercept 383 aircraft, 365 Lancaster, 10 Halifax and eight de Havilland Mosquito bombers which attacked Berlin on 23/24 November 1943. Zorner caught a Lancaster at 20:09 northwest of Berlin and dispatched the bomber for his 14th victory.[37] On 2 December, Zorner accounted for two Lancaster bombers: one near Diepholz at 19:24 and southwest of Berlin at 20:29.[38] On 20 December at 20:02 claimed a Lancaster. The location was recorded as "Hintetmeiligen".[39] On 23/24 December 1943 Bomber Command returned to Berlin. Zorner claimed three Lancasters: one east of Giessen at 03:02, another south of Diepholz at 05:43 and a third at 06:02 over Cloppenburg.[39] One of the bombers was Avro Lancaster III ED999, KM-X, from No. 44 Squadron RAF, piloted by Sergeant R. L. Hands. Hands and his crew were killed in action.[40]

Rear view of a Bf 110G's rear cockpit glazing with MG FF/M Schräge Musik

Zorner maintained his success in 1944. Over Luckenwalde at 03:10 on 3 January 1944 Zorner accounted for his 21st victory. On the 6 January at 02:42 and 02:51 he claimed two Lancasters northwest of Stettin and on 20 January at 19:31 and 19:45 he claimed one Halifax (LL135) and one Lancaster (JB419), while operating north west of Berlin.[41] These victories were achieved with the Schräge Musik which had been installed on his Bf 110G-4 prior to the patrol.[42] Four weeks later, on 15 February, Zorner filed claims for two Lancaster bombers at 20:22 and 21:11 near Berlin. The latest Lancaster bombers took his victory total to 27. On 20 February at 03:04 and 03:17 near Wesendorf, at 03:26 over Gardelegen, and at 03:41 south of Briest, Zorner claimed a Lancaster shot down to record his 28th–31st aerial victories.[43]

On 24/25 February 1944, Bomber Command turned its attention to Schweinfurt. 554 Lancaster, 169 Halifax and 11 Mosquito bombers carried out the attack. The route took the bomber stream over Stuttgart. Bomber Command lost 26 Lancaster and seven Halifax bombers (4.5 per cent).[44] Zorner claimed five bombers shot down, becoming an ace in one sortie. The first claim was made west of Stuttgart at 22:15, southwest of the city at 22:22, southwest at 22:30, west at 00:25 and finally north of Stuttgart at 00:51. All five were Lancasters. The latter two claims were made after midnight thus Zorner did not qualify for ace in a day status.[45] By day-break Zorner had been officially credited with 35 enemy bombers destroyed in night operations.[46]

On 1 March 1944 Zorner was promoted to Hauptmann (Captain).[6] He continued to command 8. Staffel. He downed two Lancasters on 22 March in the Frankfurt area between 21:42 and 22:16.[46] A solitary claim on 24 March was followed by a triple claim on 26 March. A single Lancaster was engaged and destroyed north of Oberhausen at 22:01, west of Sint Truiden at 23:03 and then southwest of Brussels at 23:12.[46] For his achievements in battle Zorner was awarded the German Cross in Gold on 20 March 1944.[47] On 4 April 1944 Zorner was appointed Gruppenkommandeur of III./Nachtjagdgeschwader 5 (NJG 5), based at Mainz Finthen Airport having relinquished his command of 8. Staffel the day before.[10] In the early hours of 21 April 1944 Zorner claimed a rare victory for the German night fighter arm—a de Havilland Mosquito. Southeast of Antwerp at 03:00 Zorner spotted an aircraft which appeared to be a Junkers Ju 88 flying on one engine. Zorner closed to 50 metres (160 feet) and saw it was an enemy aircraft. He fired a burst that shattered the good engine. The British bomber dived into haze and four minutes later the crew observed an explosion on the ground. The following morning a Mosquito was confirmed shot down.[48] The Mosquito belonged to No. 169 Squadron RAF. DD616, was operating out of RAF Little Snoring, Norfolk. Flight Lieutenant Morgan and his navigator Flight Sergeant Bentley bailed out.[48]

On the night of 27/28 April 1944, Bomber Command struck at Friedrichshafen with 322 heavy bombers. The diversion attacks confused German defences and no bomber was lost on the inward flight. The German night fighter reorganised and 18 were shot down on the homeward route. Zorner intercepted southeast of Nancy claimed it destroyed at 01:20. After 31 minutes Zorner's radar operator Heinrich Wilke gained another contact and Zorner duly shot down a second Lancaster southwest of Strasbourg. Northwest of Friedrichshafen, he shot down another bomber at 02:10.[49] Zorner claimed a single victory on 1 June at 02:35 over Tergnier and the 3 June northwest of Evreux.[50]

On 6 June 1944 Operation Overlord began. On that morning the D-Day landings began in Normandy. Within twenty-four hours Zorner's Gruppe had relocated to Athies-sous-Laon. The night fighter force resisted the Allied air forces over France by night and the skies over France became a target-rich environment. The RAF Second Tactical Air Force and the Ninth US Tactical Air Force flew night operations alongside bomber command. For the Luftwaffe, the night actions also produced dangers. Their bases were within easy range of No. 100 Group RAF night fighters.[49]

Two days after his deployment to France, Zorner was awarded the Knight's Cross of the Iron Cross (Ritterkreuz des Eisernen Kreuzes) on 9 June for 48 victories. He received the award from Joseph Schmid, commanding 1. Jagdkorps. On the night of the 10/11 June 1944 he shot down four bombers targeting railway installations. The victories (nos. 49–52) were recorded west and southwest of Dreux with two more Lancaster bombers falling over Verneuil-sur-Avre between 01:00 and 01:42. The first three bombers were claimed within eight minutes.[51] Zorner achieved a double victory on 25/26 June. Bomber Command sent 739 bombers including 53 Lancaster, 165 Halifax and 39 Mosquito bombers to attack the V-1 flying bomb sites in the Pas-de-Calais. At 00:30, east of Boulogne Zorner shot down a Lancaster with his front-firing guns and he used his Schärge Musik armament to down a second—his 54th victory.[52]

On the 1 July at 01:22 near Bourges Zorner shot down another Lancaster. On 24/25 July 1944 Bomber Command returned to the V-1 sites. Northwest of both Strasbourg and Saint-Dizier, between 02:35 and 02:54 Zorner claimed victory number 57 and 58.[53] Zorner remained with NJG 5 but did not file another claim as the German front in Normandy collapsed. On 17 September 1944 Zorner became the 588th recipient of the Knight's Cross of the Iron Cross with Oak Leaves (Ritterkreuz des Eisernen Kreuzes mit Eichenlaub). It was not presented to Zorner until 2 December 1944 when he was handed the medal by Reichsmarshal Hermann Göring, commander-in-chief of the Luftwaffe at the Reichsluftfahrtministerium.[52] By this time III./NJG 5 was based at Lübeck.[10]

Zorner was transferred from front-line operations and on 13 October 1944 he appointed Gruppenkommandeur of II./Nachtjagdgeschwader 100 equipped with Ju 88G night-fighters based at Nový Dvůr.[10] On 1 December 1944 Zorner was promoted to major. He commanded the unit in operations over Czechoslovakia and Austria until 8 May 1945.[54] The promotion came six days after his radar operator Feldwebel Heinrich Wilke, was awarded the Knight's Cross on 25 November 1944 for participating in all Zorner's 58 victories.[52] II./NJG 100 was subordinated to the 7th Jagddivision (7th Fighter Division).[52]

The Geschwader relocated several times owing to Red Army advances, moving to Vienna, Linz, Prague and finally to Karlsbad in western Germany.[10] The Gruppe was overloaded with 53 of the Ju 88G-6 models and Zorner had 630 men under his command. Only 35 were technically fit for operations and he classified only four as combat ready. On the evening of 5/6 March 1945, the group was ordered to scramble a single Ju 88. Zorner decided to fly himself, after a long period of non-operational flying. South southwest of Graz, he shot down Consolidated B-24 Liberator at 01:30.[55]

One B-24 was lost on this night to a night fighter.[56] Liberator VI KH150, "R", of 34 Squadron SAAF was shot down and the crew were killed.[57] Lieutenant J. B. Masson, C. E. Park, Second Lieutenant C. D. Foord, Flying Officer F. S. A. Thomas, A. R. Thomas, M. A. Ueckermann, R. V. Wilkson and Sergeant A. Stables died.[57] They are buried in Udine, Italy.[58]

According to US historian David T. Zabecki, Zorner was credited with 58 aerial victories.[63] Obermaier also lists him with 59 nocturnal aerial victories, claimed in 272 combat missions, 110 of which as a night fighter.[64]

• Iron Cross (1939)
  • 2nd Class (9 June 1941)[90]
  • 1st Class (12 March 1943)[90]
• Honour Goblet of the Luftwaffe (Ehrenpokal der Luftwaffe) on 20 September 1943 as Oberleutnant and Staffelkapitän[91][Note 3]
• Front Flying Clasp of the Luftwaffe
  • in Bronze for Transport Pilots on 21 August 1941[46]
  • in Silver for Transport Pilots on 22 October 1941[46]
  • in Gold for Night Fighter Pilots on 30 March 1944[46]
• German Cross in Gold on 20 March 1944 as Oberleutnant in the 8./Nachtjagdgeschwader 3[47]
• Knight's Cross of the Iron Cross with Oak Leaves
  • Knight's Cross on 9 June 1944 as Hauptmann and Staffelkapitän of the 8./Nachtjagdgeschwader 3[92][93]
  • 588th Oak Leaves on 17 September 1944 as Hauptmann and Gruppenkommandeur of the III./Nachtjagdgeschwader 5[92][94]
• Medal of Merit of the Order of Merit of the Federal Republic of Germany (2006)[61]

• Boiten, Theo (1997). Nachtjagd: The Nightfighter Versus Bomber War over the Third Reich, 1939–45. London: Crowood Press. ISBN 978-1-86126-086-4.